MAI COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN
SERVICE GROUP(S): MINI                 MFG: BASIC FOUR

 NACS  TYPE(S): N003                   MFG. MODEL(S): MPx & ASxx Systems

CATEGORY: HANDBOOKS                    DESC: Handbook

                   *** TABLE OF CONTENTS AS OF 07/13/93 ***                     

FIB 00001.Software Functions..........................................01/05/90
FIB 00002.Diagnostics Information.....................................10/05/89
FIB 00003.7xxx/8xxx Series Bootstrap Status Word/Error Codes..........05/29/87
FIB 00004.9xxx Series Bootstrap Status Word/Error Codes...............06/25/90
FIB 00005.I/O Devices Address Switch Settings.........................07/29/87
FIB 00006.PCBA Plugging Charts........................................08/07/89
FIB 00007.Lowest Acceptable Revision Levels (LARL)....................01/30/91
FIB 00008.ACS PCBA (7xxx/8xxx Systems)................................06/23/88
FIB 00009.AMS PCBA (9xxx Systems).....................................05/05/89
FIB 00010.AUXILIARY PCBA (810 Systems)................................05/29/87
FIB 00011.BMTC PCBA (7xxx/8xxx Systems)...............................06/10/93
FIB 00012.BMTC PCBA (9xxx & ASxx Systems).............................06/10/93
FIB 00013.COMPUTING ENGINE PCBA (810 Systems).........................05/29/87
FIB 00014.DATA PCBA (810 Systems).....................................05/29/87
FIB 00015.DMA-I PCBA (9xxx Systems)...................................10/30/87
FIB 00016.ESTK PCBA (9xxx Systems)....................................10/30/87
FIB 00017.IDC & IDC-64 PCBA (9xxx Systems)............................01/11/88
FIB 00018.LANC PCBA (9xxx Systems)....................................05/29/87
FIB 00019.MCS PCBA....................................................01/26/89
FIB 00020.MDI PCBA (7xxx/8xxx Systems)................................05/29/87
FIB 00021.MEMORY PCBAs, 1/2 MB and 1 MB...............................09/14/88
FIB 00022.MEMORY PCBAs, 2 MB and 4 MB.................................10/22/87
FIB 00023.MPC PCBA - 903500-001 (7xxx Systems)........................02/22/88
FIB 00024.MPC PCBA - 903546-001 (7xxx Systems)........................10/05/92
FIB 00025.NIMLC PCBA - 903381-001 (810/7xxx/8xxx Systems).............02/22/88
FIB 00026.NIMLC PCBA - 903381-001 (9xxx System).......................03/29/89
FIB 00027.NIMLC PCBA - 903534-001 (810/7xxx/8xxx Systems).............06/23/88
FIB 00028.NIMLC PCBA - 903534-001 (9xxx and ASxx Systems).............03/29/89
FIB 00029.N8WAY PCBA (810/7xxx/8xxx Systems)..........................05/02/88
FIB 00030.N8WAY PCBA (9xxx Systems)...................................09/25/87
FIB 00031.N16WAY PCBA (7xxx/8xxx Systems).............................07/17/90
FIB 00032.N16WAY PCBA (9xxx and Advanced Series Systems)..............07/17/90
FIB 00033.SMDI and SMDII PCBAs........................................08/16/91
FIB 00034.TDP PCBA (7xxx/8xxx Systems)................................08/03/87
FIB 00035.VCON PCBA...................................................05/29/87
FIB 00036.WCS.PCBA (810 Systems)......................................05/29/87
FIB 00037.Memory Time-out & Parity Dump Analysis......................06/01/88
FIB 00038.Disk formatting and defective track assignment..............09/18/87
FIB 00039.MEMORY PCBA - 4/8/16 MB (9xxx & ASxx Systems)...............10/20/88
FIB 00040.DMA-II/SCSI Controller PCBA and SCSI Embedded Disk (9xxx/ASx01/31/91
FIB 00041.Bootable O.S. & Diagnostic Tape Information.................01/11/90
FIB 00042.MBA PCBA - 903617-001 (ASxx Systems)........................09/13/88
FIB 00043.MCS/M PCBA..................................................10/11/89
FIB 00044.NEP PCBA ASxx Systems.......................................12/01/89
FIB 00045.STACHE PCBA - ASxx Systems..................................09/13/88
FIB 00046.DMA III PCBA - (ASxx Systems)...............................06/26/89
FIB 00047.1,x,y,5 & 1,x,y,6 MEM Pty & Timeout Dump Analysis - ASxx Sys09/19/88
FIB 00048.System Hang/Dump Recovery Procedures  [ WPSF 506 ]..........02/18/92
FIB 00049.MODE SENSE PARAMETERS FOR SCSI DRIVES.......................06/23/92


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------Table Of Contents Pg01 of 01


FIB 00001                                                             01/05/90








                           *** Software Functions ***


 Due to the ongoing changes in BOSS/VS, this section of the handbook will not be
maintained as a step-by-step OS installation procedure.

 Instead, use the Software Announcement document for the level of BOSS/VS which
applies each time. If the customer does not have a copy of the Software
Announcement, it should be available to you in the F.I.B. BOSS/VS section of the
SOFTWARE category. Also, each new BOSS/VS tape issued by MBF contains a copy of
the file which can be submitted for printing. This file is named as follows:

                              LEVELS PRIOR TO n.6C

  o (Family name).+ release + .INST.DOC.SA + last 2 characters of release.

                             n.6C AND LATER LEVELS

  o (Family name).+ release +.INST.DOC.ANNOUNCE + last 2 characters of release..

                                *** EXAMPLES ***
     (DISK).R6A13.INST.DOC.SA6A  =  Software Announcement file for n.6A
     (DISK).R6C15.INST.DOC.ANNOUNCE6C = Software Announcement file for n.6C

  o It is highly recommended that this file (along with the Errors List and
    diagnostic information files) be printed at each installation and kept in a
    binder for future reference.

  o If you are updating the system to a new O.S. level, the Software
    Announcement can be restored from tape using SAVERESTORE, and the full
    file name used as the file specifier.

  o The new Software Announcement can then be SUBMITted to the SPOOLER and
    printed prior to starting the update.


* The following is a method to obtain a Errors List (four-tuple listing):

  o  While in console mode with a ! prompt, enter:

                    DISPLAY $WHERE(ERRORS.LIST)   (press CR)

  o The system will respond with the ERRORS.LIST fully qualified
    name (as follows):

                   (DISK).R5C15.SYS.ERRORS.LIST   (press CR)

  o Now enter SUBMIT followed by the above system response (as follows):

                SUBMIT (DISK).R5C15.SYS.ERRORS.LIST  (press CR)

  o The Errors List will print on the first available 'P' printer.

  o Also, remember that the error message for a specific four-tuple (from the
    error list file) can be obtained by entering !ERR followed by the
    four-tuple code as shown below:

                                 !ERR 21,1,1,16


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB001 Pg001


  o The system will respond with the error message for the four-tuple entered.

* Consult the presite information package from the MBF Branch Sales office for
  system/data disk configuration, disk family set-up, special port
  configurations,  and horizontal software packages to be installed if this is
  an MBF Branch supported area.


* Use the appropriate Software Announcement for OS installation and upgrade
  procedures.

    The following are some pointers to insure your success:
       1. READ the prompts and understand them before responding.
       2. Pay attention to the required responces. Do not type Y when YES is
          required or N when NO is required.
       3. When difficulty is encountered or something is unclear in the
          Software Announcement call for assistance.
       4. Get a print-out of the system terminal configuration PRIOR to
          beginning this procedure (if possible).

  o During the O.S. installation procedure, all communication with the system
    will be via Port 0 of the MCS PCBA. This is J10, the bottom connector of 
    the MCS. However, if there is a High Speed Video controller installed in
    the CCA, then all communication will be on the first port on the first VCON.
    This is J0, the bottom connector of the VCON.

* The size of the dump area is calculated as follows:

     Each megabyte of main memory.....1024
     MCS four way controller............64
     Each eight-way controller..........64
     Each sixteen-way controller.......128
     Each IMLC controller...............64
     Each LAN controller................64
     Each BMTC controller..............128

  If this is a late level OS it will calculate the value for you and display
  it on the bottom of the screen. ADD 3000 TO THIS VALUE to allow for
  hardware upgrades without having to re-initialize the family.


* Primary and secondary prefixs should be set as follows:

                           on OS levels prior to n.6G

         (Family name). + release no. + .SYS.,. + release no. + .INST.

                                      EX.

                         (DISK).R6A11.SYS.,.R6A11.INST.


                           on OS level n.6G and later

         (Family name). + release no. + .SYS.,. + release no. + .DIAG.

                                      EX.

                         (DISK).R6G43.SYS.,.R6G43.DIAG.


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB001 Pg002


* Test load from all slots after OS installation is complete.

  NOTE: If OS level is n.6G and the customer has not signed the Diagnostic
        Product License Agreement, diagnostics must be removed from the system. 
        Use the Diagnostic Removal procedure in the Software Announcement.


ORIGINATOR: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB001 Pg003


FIB 00002                                                             10/05/89

                        *** Diagnostics Information ***

 All available MPx Series diagnostics are documented via files contained in
the INST.DOC. node on the OS disk for OS levels  prior to R6Gxx. The files are .
in the DIAG.DOC.node starting with release R6Gxx. A program named DOCWRITER is
located under the same node. The purpose of DOCWRITER is to print or display the
diagnostic files.

Diagnostics are in the ().Rxzz.DIAG. node for releases starting with R6G43.

To run NEWX your prefix must be set properly also.

                      eg. ().R6G43.DIAG. or ().R6C11.INST.

Using DOCWRITER:

 At each system installation site, a hardcopy of this documentation must be  
maintained. In order to obtain the hardcopy perform the following:

1. Get into console mode with a ! prompt displayed.

2. Enter SYSPREFIX and press CR.

   (A) The system will respond by displaying the System Prefix such as:

            ().R6A13.SYS.      <- or ->      ().R6A13.SYS.,.R6A13.INST.      
            ().R6G43.SYS.      <- or ->      ().R6G43.SYS.,.R6G43.DIAG.

3. In order to set your prefix to that desired, enter the following:

   (A) PREFIX + a space + (). + Rxyzz + .INST. and press CR

                           or for OS R6Gxx and later

       PREFIX + a space + (). + Rxyzz + .DIAG. and press CR

       Where xyzz = the O.S. release displayed in step 2 - eg. 6A13

       EXAMPLE: PREFIX ().R6A13.INST. or PREFIX ().R6G43.DIAG.

    (B) The system will respond with "User Prefix Set"

4. Enter DOCWRITER and press CR

 DOCWRITER will run and display similar to that below:

                DOCWRITER-VERSION [6.1.29.2]
           DIAGNOSTIC USER'S MANUAL DOCUMENT WRITER

      NO.       DOCUMENT   SYSTEM        DESCRIPTION
       1.......DOCWRITER..7000-9500....User's Guide
       2.......REMIDIA....9000,9500....Resident Micro Diagnostic
       3.......REMIDIB....8000.........Resident Micro Diagnostic             
       4.......PROMIDIA...9000,9500....Production Micro Diagnostic
       5.......PROMIDIB...8000.........Production Micro Diagnostic
       6.......DEMON......7000-9500....Diagnostic Executive Monitor
       7.......DCL........7000-9500....Diagnostic Command List
       8.......NEWX.......7000-9500....Diagnostic Exerciser
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB002 Pg001


       9.......MDLOAD.....7000-9500....IMLC & ISDC Mfg. Diagnostic
      10.......PRTDIA.....7000-9500....IMLC - Printer Diagnostics
      11.......MDTDIA.....7000-9500....IMLC - MDT Diagnostics
      12.......PROMMPC....7000.........PROMIDI/MPC Diagnostics
      13.......REMMPC.....7000.........REMIDI/MPC Diagnostics
      14.......PROMLAN....7000-9500....PRMIDI LAN Diagnostics

  Note that option 1 is the DOCWRITER User's Guide. For complete DOCWRITER
 instructions and description information, print and refer to this document.

  Also note that some manuals are for the 7000-7100 series only, some are for
 the 8000 series only, some are for the 9000-9500 series only and some are for
 all MPx series. Option to print only those applicable to each particular site.

          *********************** NOTE ******************************        
          *                                                         *        
          * THESE DOCUMENTS OFTEN CHANGE WITH AN O.S. LEVEL CHANGE. *
          * THEREFORE, THEY SHOULD BE PRINTED AGAIN AT EACH ACCOUNT *
          * WHEN IT IS UPGRADED TO A NEW O.S. LEVEL.                *
          *                                                         *        
          ***********************************************************

  Several of the diagnostics were designed for use by manufacturing testing
 and/or for component level repair purposes (see descriptions below).

  The following is a listing of those which the Field Engineer should need:

          DOCWRITER, REMIDI, DEMON, DCL, NEWX, PRTDIA, MDTDIA, REMMPC

                     *** BRIEF DIAGNOSTICS DESCRIPTIONS ***

 REMIDIA and REMIDIB:

  REMIDI is the most basic micro diagnostic. The requirements for loading and
 running of this diagnostic are a working disk with the REMIDI slots written and
 at least one working computer engine set. When REMIDI is booted, WCS data is
 loaded into a processor and executed. System dedication is required.

  The main function of REMIDI is to test the processor(s)/memory functions. See
 the User's Manual for complete details.                                     

 PROMIDIA and PROMIDIB:

  The PROMIDI diagnostics have been designed in such a way as to be able to
 identify functional faults on any of the Computer Engines PCBAs. The main use
 of PROMIDI is for component level repair. System dedication is required.

 DEMON:

  DEMON is an I/O controller, I/O device and CPU memory diagnostic. Before
 accepting inputs from the F.E., DEMON interrogates the system to find which
 devices are attached to the system. DEMON does not utilize the O.S
 configuration record. System dedication is required. See the User's Manual for
 complete details.

 DCL:

  The purpose of the Diagnostic Command List (DCL) program is to provide an
 on-line user selectable diagnostic capability. It allows the user to generate
 and execute I/O command sequences on the desired I/O device(s). This diagnostic
 can be run on-line and therefore does not require system dedication. See the
 User's Manual for complete details.

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB002 Pg002


 NEWX:

  NEWX is a menu driven, on-line I/O diagnostic. It is in many ways similar to
 the DEMON diagnostic. Since it is an on-line diagnostic system dedication is
 not required. See the User's Manual for complete details.

  MDLOAD:

   The purpose of MDLOAD is to provide a component level diagnostic for repair
  center use on the MCS, 8-way, 16-way, LAN, BMTC and IMLC controllers.

  PRTDIA:                                                                    

  PRTDIA is a diagnostic used to test character printers attached to MDT type
 terminals which are attached to the system via an IMLC. This is an on-line
 diagnostic and therefore does not require system dedication. See the User's
 Manual for complete details.

 MDTDIA:

  MDTDIA is a diagnostic used to test the MDT terminal - including CPM/VDM
 memory. It also tests the data path to the MDT through the IMLC. This is an
 on-line diagnostic and therefore does not require system dedication.

 PROMMPC:

  PROMMPC is similar to PROMIDI and is used on the 7000-7100 series for
 component level repair of the MPC PCBA.

 REMMPC:

  REMMPC is similar to REMIDI and is used on the 7000-7100 series for testing
 the MPC PCBA. Requires system dedication. See the User's Manuals for complete
 details.

 PROMLAN:

  PROMLAN is similar to PROMIDI and is used to test the LAN controller.
 Requires system dedication.
_______________________________________________________________________________

  In addition, there is a general system exerciser called COOK. While this is
 not a "diagnostic", as such, COOK is an excellent method to "load down" the
 MPx system with work.

  To run COOK, do the following:

   You must be logged onto the system with System Manager priviledge and the
   logon must have no initial command specified. If an initial command is setup
   for the logon used, all COOK task started will start with that initial
   command specified instead of the various COOK test programs.

1. Get into console mode with a ! prompt displayed.

2. Enter SYSPREFIX and press CR.

   (A) The system will respond by displaying the System Prefix such as:

            ().R6A13.SYS.      <- or ->      ().R6A13.SYS.,.R6A13.INST.      

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB002 Pg003


3. In order to set your prefix to that desired, enter the following:

   (A) PREFIX + a space + (). + Rxyzz + .BURN. and press CR

       Where xyzz = the O.S. release displayed in step 2 - eg. 6A13

       EXAMPLE: PREFIX ().R6A13.BURN.

    (B) The system will respond with "User Prefix Set"

 4. Enter COOK and press CR.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB002 Pg004


FIB 00003                                                             05/29/87

           *** 7xxx/8xxx Series Bootstrap Status Word/Error Codes ***

                  ** BOOTSTRAP STATUS WORDS (Y-BUS DISPLAY) **

STATUS
WORD                             DESCRIPTION
-----   -----------------------------------------------------------------------.
0000    Jam to zero, no memory errors/transfer to loader
0001    Address Register test: '5555'
0002    Data Register test: '5555'
0003
0004    Address Register test: 'AAAA'
0005    Data Register test: 'AAAA'
0006
0007    Address Register test: 'FFFF'
0008    Data Register test: 'FFFF'                                           
0009
000A    Address Register test: '0000'
000B    Data Register test: '0000'
000C    Set CE Check-in byte
000D
000E
000F    Non I/O CE waiting for CE Enable
0010
0011                                                                         
0012
0013    Reading main memory for parity error
0014    Checking for: Warm/Cold; Disk/Tape; Monitor ???
0015    Initializing memory with 'address-as-data'
0016    Initializing memory and generating bit vector
0017
0018    Initializing WCS memory and generating bit vector
0019    Initializing WCS memory pointer
001A    Clear I/O fast RAM
001B    Find loading device
001C    Loading loader/WCS
001D    Loading all WCS memory
001E    CRC WCS memory
001F    Initialize SMD device type table
0020    Initialize I/O device type table
0021
0022    Initialize VDT device type table
0023    Read WCS revision level
0024    Write WCS/BOOT revision level and sense switches and set run flip-flop
0025    Enable JAM-TO-ZERO and transfer control
0026
0027

                          ** BOOTSTRAP ERROR CODES **

ERROR
CODE                             DESCRIPTION
-----   -----------------------------------------------------------------------.
D001    ACS board TZ6 branch failed
D002    ACS board LIT register bad
D003    ACS board ALU arithmetic and logical operations failed
D004    ACS board PUSH/POP micro-stack bad
D005    ACS board GC0/GC1 branch failed
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB003 Pg001


D006    ACS bard 2901 shifts failed
D007    ASC board branches failed
D008    ACS board IOS branch failed
D009    ASC board DIV shift failed
D00A    ACS board multiple shift failed
D00B    MDI board General Purpose and byte swap registers failed
D00C    MDI board GNB or NXB D-sourse failed
D00D    MDI board failed to respond to Monitor On/OFF command
DEAD    Unsuccessful Jump into WCS memory

E01B    Loading device not found
E081    Disk: disk not ready
        Tape: tape off-line
E082    Disk: no seek interrupt
        Tape: formatter busy
E083    Disk: seek error
        Tape: I.D. error
E084    Disk: no sector interrupt
        Tape: blank tape
E085    Disk: no sector mark
        Tape: no read data pulse
E086    Disk: data register not full (no SYNC byte)
        Tape: data error
E087    Disk: sector number mismatch
E088    Disk: Data Register not set (head/cylinder number)
E089    Disk: Data register not full (alternate head/cylinder number)
E08A    Disk: Head/Cylinde mismatch
        Tape: BMTC buffer overflow (bad boot tape)
E08B    Disk: Data Register not full
E08C    Disk: I.D. CRC error
E08D    Disk: Data CRC error

--->    Note: Error codes E091 - E0A7 are for MPC

E091    Disk: Off-line
        Tape: Not ready
E092    Disk: Not ready
        Tape: Parity error in data transfer from tape to buffer
E093    Disk: Head/cylinder error
        Tape: Parity error in data transfer from buffer to memory
E094    Disk: Data ECC error
        Tape: Expected exception state not received
E095    Disk: Buffer parity error
        Tape: No acknowledge from MTCS
E096    Disk: Alternate cylinder error
        Tape: Exception state will not clear
E097    Disk: Sector number error
        Tape: Unexpected filemark
E098    Disk: I.D. ECC error
        Tape: Read error
E099    Disk: I.D. Address Mark error
        Tape: No cartridge
E09A    Disk: Data Address Mark error
        Tape: Illegal command
E09B    Disk: Command Reject
E09C    Disk: Seek error
E09D    Disk: Cannot get Z-80 Bus
E09E    Disk: Unsolicited seek error
E09F    Disk: Buffer flag not received
E0A1    MPC: No interrupt from boot device
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB003 Pg002


E0A2    MPC: Wrong device interrupted
E0A3    MPC: Z-80 did not pass self test
E0A4    MPC: MTCS buffer error
E0A5    MPC: Z-80 Mailbox error
E0A6    MPC: Disk buffer error
E0A7    MPC: Unknown device error

F000
F001    Write error: Resetting CE Check-in and Enable words
F002    Address Register error, test: '5555'
F003    Data Register error, test: '5555'
F004
F005    Address Register error, test: 'AAAA'
F006    Data Register error, test: 'AAAA'
F007
F008    Address Register error, test 'FFFF'
F009    Data Register error, test: 'FFFF'
F00A
F00B    Address Register error, test: '0000'
F00C    Data Register error, test: '0000'
F00D    CE with duplicate ID number
F00E    Read/Write error: setting the CE Check-in byte
F00F    Non-I/O CE with bad WCS memory
F010    Read error: Non-I/O CE reading CE Enable byte
F011
F012    Read error: Warm Start, parity error in main memory
F013    Read error: Reading stored sense switches, LOAD/A.LOAD F/F
F014    Read error: Reading memory location #1
F015
F016
F017    First 256K of main memory is bad
F018    Write error: main memory bit vector
F019    Write error: WCS memory bit vector
F01A    I/O CE with bad WCS memory
F01C    Write error: Loading BOOT directory into WCS memory
F01D    Read/write error: Reading BOOT directory; Writing Loader/WCS
F01E
F01F    I/O CE with WCS CRC error
F020    Write error: Writing SMD table
F021    I/O device responding to two device addresses
F022    Write error: I/O device type table
F023    Write error: VDT device type table
F024    Read error: Reading WCS revision level in WCS memory
F025    Write error: WCS/BOOT revision location; sense switch position; word #1
F0FE    Warm start: Alternate Load
F0FF    Warm start: Neither Load or Alternate Load set
F1FC    JAM-TO-ZERO: Memory time-out/parity error
F1FD    JAM-TO-ZERO: Memory time-out error
F1FE    JAM-TO-ZERO: Memory parity error
FFFF    JAM-TO-ZERO: WCS parity error

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB003 Pg003


FIB 00004                                                             06/25/90

             *** 9xxx Series Bootstrap Status Word/Error Codes ***

                  ** BOOTSTRAP STATUS WORDS (Y-BUS DISPLAY) **

STATUS
WORD    SOURCE                   DESCRIPTION
-----   ------- ---------------------------------------------------------------
0000    O.S.    Jam to zero, no memory errors/transfer to loader
0001    MTEST   Address Register test: '5555'
0002    MTEST   Data Register test: '5555'
0003    MTEST
0004    MTEST   Address Register test: 'AAAA'                                
0005    MTEST   Data Register test: 'AAAA'
0006    MTEST
0007    MTEST   Address Register test: 'FFFF'
0008    MTEST   Data Register test: 'FFFF'
0009    MTEST
000A    MTEST   Address Register test: '0000'
000B    MTEST   Data Register test: '0000'
000C    START   Set CE Check-in byte
000D
000E
000F    WAIT    Non I/O CE waiting for CE Enable
0010
0011                                                                         
0012
0013    WARM    Reading main memory for parity error
0014    CHECK   Checking for: Warm/Cold; Disk/Tape; Monitor ???
0015    MADDR   Initializing memory with 'address-as-data'                   
0016    MEMORY  Initializing memory and generaing bit vector
0017
0018    WCS     Initializing WCS memory and generating bit vector
0019    WCSP    Initializing WCS memory pointer
001A    CLEAR   Clear I/O fast RAM
001B    FIND    Find loading device
001C    LOAD    Loading loader/WCS
001D    LDWCS   Loading all WCS memory
001E    CRC     CRC WCS memory
001F    SMD     Initialize SMD device type table
0020    IOD     Initialize I/O device type table
0021
0022    VDT     Initialize VDT device type table
0023    STORE   Read WCS revision level
0024    STORE   Write WCS/BOOT revision level & sense switches & set RUN F/F
0025    FINI    Enable JAM-TO-ZERO and transfer control
0026
0027

                          ** BOOTSTRAP ERROR CODES **

ERROR
CODE    SOURCE                   DESCRIPTION
-----   ------- ---------------------------------------------------------------
DEAD    'WCS'   Unsuccessful Jump into WCS memory

E01B    FIND    Loading device not found
E081    LOAD    Disk: disk not ready
                Tape: tape off-line
                (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB004 Pg001


E082    LOAD    Disk: no seek interrupt
                Tape: formatter busy
E083    LOAD    Disk: seek error
                Tape: I.D. error
E084    LOAD    Disk: no sector interrupt
                Tape: blank tape
E085    LOAD    Disk: no sector mark
                Tape: no read data pulse
E086    LOAD    Disk: data register not full (no SYNC byte)                  
                Tape: data error
E087    LOAD    Disk: sector number mismatch
                Tape: BMTC timed out
E088    LOAD    Disk: Data Register not set (head/cylinder number)
                Tape: BMTC time-out or parity error
E089    LOAD    Disk: Data register not full (alternate head/cylinder number)
E08A    LOAD    Disk: Head/Cylinder mismatch
                Tape: BMTC buffer overflow (bad boot tape)
E08B    LOAD    Disk: Data Register not full
E08C    LOAD    Disk: I.D. CRC error                                         
E08D    LOAD    Disk: Data CRC error                                         

F000
F001    START   Write error: Resetting CE Check-in and Enable words
F002    MTEST   Address Register error, test: '5555'
F003    MTEST   Data Register error, test: '5555'
F004
F005    MTEST   Address Register error, test: 'AAAA'
F006    MTEST   Data Register error, test: 'AAAA'
F007
F008    MTEST   Address Register error, test 'FFFF'
F009    MTEST   Data Register error, test: 'FFFF'
F00A
F00B    MTEST   Address Register error, test: '0000'
F00C    MTEST   Data Register error, test: '0000'
F00D    START   CE with duplicate ID number
F00E    START   Read/Write error: setting the CE Check-in byte
F00F    WAIT    Non-I/O CE with bad WCS memory
F010    WAIT    Read error: Non-I/O CE reading CE Enable byte
F011
F012    WARM    Read error: Warm Start, parity error in main memory
F013    WARM    Read error: Reading stored sense switches, LOAD/A.LOAD F/F
F014    CHECK   Read error: Reading memory location #1
F015    ALOAD1  Incorrect sense switch setting with alternate load
F016
F017    MEMORY   First 256K of main memory is bad
F018    WCS      Write error: main memory bit vector
F019    WCS      Write error: WCS memory bit vector
F01A    WCSP     I/O CE with bad WCS memory                                  
F01C    LOAD     Write error: Loading BOOT directory into WCS memory
F01D    LOAD     Read/write error: Reading BOOT directory; Writing Loader/WCS
                 and decryption
F01E    LOAD     This is not an 810 B WCS
F01F    CKWCS    I/O CE with WCS CRC error
F020    SMD      Write error: Writing SMD table
F021    IOD      I/O device responding to two device addresses               
F022    IOD      Write error: I/O device type table
F023    VDT      Write error: VDT device type table
F024    FINI     Write error: WCS/BOOT revision location; sense switch position;
                 word number 1
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB004 Pg002


F025    ----
F026    LOAD     Not a 9XXX WCS
F0FE    WARM     Warm start: Alternate Load
F0FF    WARM     Warm start: Neither Load or Alternate Load set
F1FC    START    JAM-TO-ZERO: Memory time-out/parity error
F1FD    START    JAM-TO-ZERO: Memory time-out error
F1FE    START    JAM-TO-ZERO: Memory parity error
F4xx    LOAD     Memory wrap around - check IDC64 >16 meg jumpering
FA01    ----     AMS self test failure, ALU failed
FA02    ----     AMS self test failure, LITERAL REGISTER:
FA03    ----     AMS self test failure, ALU ARITHMETIC OR LOGICAL OPERATION:
FA04    ----     AMS self test failure, PUSH/POP MICROSTACK
FA05    ----     AMS self test failure, INTERNAL OR EXTERNAL REGISTERS: bad
FA06    ----     AMS self test failure, BARREL SHIFTER: bad shift count register
FA07    ----     AMS self test failure, BRANCHES:
FA08    ----     AMS self test failure, 2910 SEQUENCER:
FA08    ----     AMS self test failure, 29203 SHIFTS:
FA0A    ----     AMS self test failure, WCSA REGISTER
FA0B    ----     AMS self test failure, WCS MEMORY
FA0C    ----     AMS self test failure, RANGE ADDRESS ERROR (On WCS)
FA0D    ----     AMS self test failure, MEMORY HOLDING PROBLEM
FA0E    ----     AMS self test failure, BAD BY-Bus BRANCHES
FE10    ----     ESTK self test failure, BAR1:
FE11    ----     ESTK self test failure, BAR2:
FE12    ----     ESTK self test failure, WMAR
FE13    ----     ESTK self test failure, MDGR:
FE14    ----     ESTK self test failure, CSPA
FE15    ----     ESTK self test failure, registers failed
FE16    ----     ESTK self test failure, LOAD CESP
FE17    ----     ESTK self test failure, ESTACK SIZE 2
FE18    ----     ESTK self test failure, SIZE 8
FE19    ----     ESTK self test failure, CESP failure
FE1A    ----     ESTK self test failure, EStack RAM failed the 5 and A tests
FE1B    ----     ESTK self test failure, EStack addressing problem
FE1C    ----     ESTK self test failure, MEMORY OPERATION FAIL (ON ESTK SIDE)
FE1D    ----     ESTK self test failure, failed push pop
FE1E    ----     ESTK self test failure, failed mpush
FE1F    ----     ESTK self test failure, failed mpop                         
FD20    ----     IDC self test failure, CPGC or SGBA registers failed
FD21    ----     IDC self test failure, opcode pipeline failed               
FD22    ----     IDC self test failure, CPGC counter failed
FF31    ----     IDC self test failure, MEMORY WRITE TO WORD 11 + CPUID FAILED.
                 If the CPU fails this test with the RSTACK light OFF (RSTK is
                 good and enabled) and the CACHE light is ON (CACHE is good and
                 enabled) then it is likely that something external to the IDC
                 is failing (probably low memory related)
FFFF    START    JAM-TO-ZERO: WCS parity error

ORIGINATOR: H. MITCHELL
MODIFIED BY: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB004 Pg003


FIB 00005                                                             07/29/87

                  *** I/O Devices Address Switch Settings ***

 This bulletin contains a collection of the various I/O device ADDRESS switch
settings for the equipment which may be attached to an MPx CPU. (For quick
reference). For the settings of any switches in the device other than the
address switch, refer to the Maintenence Manual or F.I.B. section of the
individual device.

            -----------------SWITCH SETTING LEGEND-----------------
            |                                                     |          
            | C = Closed or On    O = Open or Off    X = Not Used |
            -------------------------------------------------------


                              *** DISK DRIVES ***

CALCOMP T-83 DISK DRIVE:

.Address switch is located on the LOGIC I PCBA. It is SW1 and has four positions
which may be set as follows:

                       Drive            Switch Positions
                       Address          | 1 | 2 | 3 | 4 |
                       -----------------|---|---|---|---|
                         0              | O | O | O | X |
                       -----------------|---|---|---|---|
                         1              | C | O | O | X |
                       -----------------|---|---|---|---|
                         2              | O | C | O | X |
                       -----------------|---|---|---|---|
                         3              | C | C | O | X |
                       -----------------|---|---|---|---|
                         4              | O | O | C | X |
                       -----------------|---|---|---|---|
                         5              | C | O | C | X |
                       -----------------|---|---|---|---|
                         6              | O | C | C | X |
                       -----------------|---|---|---|---|
                         7              | C | C | C | X |
                       ----------------------------------                    

                                    Figure 1

CALCOMP T-303 DISK DRIVE:

 Address switch is located on the Interface (Input/Output) PCBA. It is SW1 and
has four positions which may be set as shown in Figure 1 above.

PRIAM P66 and  P154 14" DISK DRIVES:

 The drive may have either a single Main Logic PCBA (later machines) or a "split
board" configuration (earlier machines) consisting of an Analog PCBA and an
Interface PCBA. The address switch on the single Main Logic PCBA is located at
location 10N. The address switch on the Interface PCBA is located at location
8J.
 Regardless of which type you may have, set the address switch using the
following chart, Figure 2:
                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB005 Pg001


             Drive                      Switch Position
             Address           | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
             ------------------|---|---|---|---|---|---|---|---|
               0               | O | C | O | O | O | C | C | C |
             ------------------|---|---|---|---|---|---|---|---|
               1               | O | C | O | O | O | C | C | O |
             ------------------|---|---|---|---|---|---|---|---|
               2               | O | C | O | O | O | C | O | C |
             ------------------|---|---|---|---|---|---|---|---|
               3               | O | C | O | O | O | C | O | O |
             ------------------|---|---|---|---|---|---|---|---|
               4               | O | C | O | O | O | O | C | C |
             ------------------|---|---|---|---|---|---|---|---|
               5               | O | C | O | O | O | O | C | O |
             ------------------|---|---|---|---|---|---|---|---|
               6               | O | C | O | O | O | O | O | C |
             ------------------|---|---|---|---|---|---|---|---|
               7               | O | C | O | O | O | O | O | O |
             ---------------------------------------------------

                                    Figure 2

PRIAM P-807 8" DISK DRIVE:

 The address switch is SW2 on the R/W PCBA. To set the address on this drive,
use the chart shown below in Figure 3.

             Drive              Switch Position
             Address           |8|7|6|5|4|3|2|1|
             ------------------|-|-|-|-|-|-|-|-|
               0               |O|O|C|O|O|O|O|O|
             ------------------|-|-|-|-|-|-|-|-|
               1               |O|O|C|O|O|O|O|C|
             ------------------|-|-|-|-|-|-|-|-|
               2               |O|O|C|O|O|O|C|O|
             ------------------|-|-|-|-|-|-|-|-|
               3               |O|O|C|O|O|O|C|C|
             -----------------------------------

                          Figure 3

 MAXTOR 5 1/4" DISK DRIVE:

  The address on the Maxtor drives is set by plugging a jumper into a selected
 position in a jumper block located near connector J1 on the disk drive PCBA.
 To set the drive address, use the chart shown below in Figure 4.

                                 Phase 1         Phase 2
                  Drive          Jumper Block    Jumper Block
                  Address        Pins Jumpered   Pins Jumpered
                  --------------------------------------------               
                    0               1 to C         5 to 6
                  --------------------------------------------               
                    1               2 to C         4 to 5
                  --------------------------------------------               
                    2               3 to C         2 to 3
                  --------------------------------------------               
                    3               4 to C         1 to 2
                  --------------------------------------------               

                                    Figure 4
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB005 Pg002


CIPHER 1/2" STREAMER TAPE DRIVE:

 This drive has only one dip switch which is located on the formatter PCBA.  
On the MPx systems, the settings shown in Figure 5, below, are correct. Remember
that positions 5 and 6 as shown select DRIVE generated parity and if the
streamer is connected to a BMTC, BMTC switch S2-7 must be set to OPEN.

                Drive           Switch Position
                Address        |8|7|6|5|4|3|2|1|
                ---------------|-|-|-|-|-|-|-|-|
                  0            |O|O|C|O|C|O|C|C|
                  1            |O|O|C|O|O|O|C|C|

                                    Figure 5

CIPHER REEL-TO-REEL TAPE DRIVE:

 The address of the drive is set to 0 by way of SW1-4. Set this switch to OFF or
OPEN. The transport address thumb wheel on the front panel should be set to 0.

CIPHER 1/4" STREAMER TAPE DRIVE:

 The address on this drive is set via jumpers W8 and W9 located on the Formatter
PCBA the drive address to unit 1 (or 0) by removing jumpers W8 and W9.

 Another jumper to be aware of is W6. This jumper should be installed and
if the drive is attached to a BMTC, BMTC switch S2-7 must be set to OPEN.

STC 1/2" G.C.R. TAPE DRIVE:

 The drive address and several other options/functions are set via switch SW1 on
the CP PCBA at location KC37. The address is determined by the settings of
positions 9 and 10 of SW1. Figure 6, below, shows the correct settings for SW1
(all positions).

                     Drive                 Switch Position
                     Address            |10|9|8|7|6|5|4|3|2|1|               
                     -------------------|--|-|-|-|-|-|-|-|-|-|
                        0               | C|C|O|C|O|O|C|C|C|C|
                        1               | O|C|O|C|O|O|C|C|C|C|

TANDBERG 1/4" STREAMER TAPE DRIVE:

 The drive address is set via JP1 and JP2 on the Control PCBA. Both of these
jumpers must be removed for the drive to be connected to an MPx system.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB005 Pg003


FIB 00006                                                             08/07/89

                          *** PCBA Plugging Charts ***

                                  *** NOTE ***
 Empty backplane slots between PCBAs cause halts, hangs and various other
intermittant, hard to diagnose problems.
 The only place where empty backplane slots between PCBAs is allowed is between
the Memory PCBAs and other system PCBAs. This is allowable ONLY on the 7XXX and
8XXX systems. NO empty slots between PCBAs are allowed on the 9XXX and ASXX
systems. It is recommended that the PCBAs be arranged so all spare slots are all
adjacent.to the end terminators in all systems, thus eliminating the possibility
of errors.                                                                   

 7000/7100/8000 BOARD PLACEMENT MODELS:

                            SINGLE MAINFRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   | T |   |   |   |   |   | T |
             | E |   |   |   |   |   | D |   |   |   |   |   | E |
             | R | M | M |   |   |   | P | 1 |   |   |   |   | R |
             | M | E | E |   |   |   |   | 6 | 8 |   |   | N | M |
             | I | M | M |   |   |   | O |   |   | B | V | I | I |
             | N | O | O | M | M | A | R | W | W | M | C | M | N |
             | A | R | R | C | D | C |   | A | A | T | O | L | A |
             | T | Y | Y | S | I | S | M | Y | Y | C | N | C | T |
             | O |   |   |   |   |   | P |   |   |   |   |   | O |
             | R |   |   |   |   |   | C |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
 ...............................................................................

                BOARD PLACEMENT - LEFT FRAME OF TWO FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R | M | M | M | M |   |   |   |   |   |   |   | T |
             | M | E | E | E | E |   |   |   |   |   |   |   | E |
             | I | M | M | M | M |   |   |   |   |   |   |   | R |
             | N | O | O | O | O | M | M | A | M | A | M | A | C |
             | A | R | R | R | R | C | D | C | D | C | D | C | O |
             | T | Y | Y | Y | Y | S | I | S | I | S | I | S | N |
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   | 0 | 0 | 1 | 1 | 2 | 2 | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

               BOARD PLACEMENT - RIGHT FRAME OF TWO FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I | T | T | T |   |   |   |   |   |   |   |   | T |
             | N | D | D | D |   |   |   |   |   |   |   |   | E |
             | T | P | P | P | 1 |   |   |   |   |   |   | M | R |
             | E |   |   |   | 6 | 8 |   |   |   |   | N | E | M |
             | R | O | O | O |   |   | B | V | V | V | I | M | I |
             | C | R | R | R | W | W | M | C | C | C | M | O | N |
             | O |   |   |   | A | A | T | O | O | O | L | R | A |
             | N | M | M | M | Y | Y | C | N | N | N | C | Y | T |
             | N | P | P | P |   |   |   |   |   |   |   |   | O |
             | . | C | C | C |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
 ...............................................................................
                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg001


               BOARD PLACEMENT - LEFT FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   | M | M | M | M | 1 | 1 |   |   |   |   | T |
             | M | S | E | E | E | E | 6 | 6 | 8 |   |   |   | E |
             | I | P | M | M | M | M |   |   |   | V | V | V | R |           
             | N | A | O | O | O | O | W | W | W | C | C | C | C |
             | A | R | R | R | R | R | A | A | A | O | O | O | O |
             | T | E | Y | Y | Y | Y | Y | Y | Y | N | N | N | N |
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


              BOARD PLACEMENT - CENTER FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   | T | T | T | T | I |           
             | N |   |   |   |   |   |   |   | D | D | D | D | N |           
             | T |   |   |   |   |   |   |   | P | P | P | P | T |           
             | E |   |   |   |   |   |   |   |   |   |   |   | E |           
             | R |   |   |   |   |   |   |   | O | O | O | O | R |           
             | C | M | M | A | M | A | M | A | R | R | R | R | C |
             | O | C | D | C | D | C | D | C |   |   |   |   | O |
             | N | S | I | S | I | S | I | S | M | M | M | M | N |
             | N |   |   |   |   |   |   |   | P | P | P | P | N |           
             | . |   | 0 | 0 | 1 | 1 | 2 | 2 | C | C | C | C | . |           
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


              BOARD PLACEMENT - RIGHT FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   |   |   |   |   | T |           
             | N |   |   |   |   |   |   |   |   |   |   |   | E |
             | T |   |   |   |   |   |   |   | M | M | M | M | R |
             | E |   |   |   |   | 8 | N | N | E | E | E | E | M |
             | R | V | V | V | B |   | I | I | M | M | M | M | I |
             | C | C | C | C | M | W | M | M | O | O | O | O | N |
             | O | O | O | O | T | A | L | L | R | R | R | R | A |
             | N | N | N | N | C | Y | C | C | Y | Y | Y | Y | T |
             | N |   |   |   |   |   |   |   |   |   |   |   | O |
             | . |   |   |   |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg002


 9000/9100/9400/9500/9600 BOARD PLACEMENT MODELS:                            
                            SINGLE MAINFRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | T |           
             | E |   |   |   |   |   |   |   |   |   |   |   | E |           
             | R | 1 |   |   |   |   |   |   | M |   |   |   | R |
             | M | 6 | 8 |   |   |   |   |   | E |   |   | N | M |
             | I |   |   |   |   | E |   |   | M | B | V | I | I |
             | N | W | W | M | A | S | I | D | O | M | C | M | N |
             | A | A | A | C | M | T | D | M | R | T | O | L | A |
             | T | Y | Y | S | S | K | C | A | Y | C | N | C | T |
             | O |   |   |   |   |   |   |   |   |   |   |   | O |           
             | R |   |   |   |   |   |   |   |   |   |   |   | R |           
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

 ...............................................................................

                BOARD PLACEMENT - LEFT FRAME OF TWO FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R | 1 |   | 1 | 1 |   |   |   |   |   |   |   | T |
             | M | 6 | 8 | 6 | 6 |   |   |   |   |   |   |   | E |
             | I |   |   |   |   |   |   | E |   |   | E |   | R |
             | N | W | W | W | W | M | A | S | I | A | S | I | C |
             | A | A | A | A | A | C | M | T | D | M | T | D | O |
             | T | Y | Y | Y | Y | S | S | K | C | S | K | C | N |
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


               BOARD PLACEMENT - RIGHT FRAME OF TWO FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   |   |   |   |   | T |           
             | N |   |   |   |   |   |   |   |   |   |   |   | E |
             | T |   |   | M | M |   |   |   |   |   |   |   | R |
             | E |   |   | E | E |   | 8 |   |   |   | N | 8 | M |
             | R |   |   | M | M | B |   | V | V | V | I |   | I |
             | C | D | D | O | O | M | W | C | C | C | M | W | N |
             | O | M | M | R | R | T | A | O | O | O | L | A | A |
             | N | A | A | Y | Y | C | Y | N | N | N | C | Y | T |
             | N |   |   |   |   |   |   |   |   |   |   |   | O |
             | . |   |   |   |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

 ...............................................................................

NOTE| PCBA placement is extremely critical! Strict adherance to the plugging
      charts is required. In multiframe the rightmost IDC MUST be located in the
      slot next to the right interconnect PCBA as shown. The DMA and Memory
      PCBAs MUST be located within the SAME frame!


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg003


               BOARD PLACEMENT - LEFT FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   | 1 | 1 | 1 | 1 | 1 |   |   |   |   | T |
             | M | S | S | 6 | 6 | 6 | 6 | 6 | 8 |   |   |   | E |
             | I | P | P |   |   |   |   |   |   | V | V | V | R |
             | N | A | A | W | W | W | W | W | W | C | C | C | C |
             | A | R | R | A | A | W | A | A | A | O | O | O | O |
             | T | E | E | Y | Y | Y | Y | Y | Y | N | N | N | N |
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


              BOARD PLACEMENT - CENTER FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   |   |   |   |   | I |           
             | N |   |   |   |   |   |   |   |   |   |   |   | N |           
             | T |   |   |   |   |   |   |   |   |   |   |   | T |           
             | E |   |   |   |   |   |   |   |   |   |   |   | E |           
             | R | V |   |   | E |   |   | E |   |   | E |   | R |
             | C | C | M | A | S | I | A | S | I | A | S | I | C |
             | O | O | C | M | T | D | M | T | D | M | T | D | O |
             | N | N | S | S | K | C | S | K | C | S | K | C | N |
             | N |   |   |   |   |   |   |   |   |   |   |   | N |           
             | . |   |   |   |   |   |   |   |   |   |   |   | . |           
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


              BOARD PLACEMENT - RIGHT FRAME OF THREE FRAME SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   |   |   |   |   | T |           
             | N |   |   |   |   |   |   |   |   |   |   |   | E |
             | T |   |   | M | M | M |   |   |   |   |   |   | R |
             | E |   |   | E | E | E |   |   |   | N | N | S | M |
             | R |   |   | M | M | M | B | V | V | I | I | P | I |
             | C | D | D | O | O | O | M | C | C | M | M | A | N |
             | O | M | M | R | R | R | T | O | O | L | L | R | A |
             | N | A | A | Y | Y | Y | C | N | N | C | C | E | T |
             | N |   |   |   |   |   |   |   |   |   |   |   | O |
             | . |   |   |   |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

NOTE| PCBA placement is extremely critical! Strict adherance to the plugging
      charts is required. In multiframe the rightmost IDC MUST be located in the
      slot next to the right interconnect PCBA as shown. The DMA and Memory
      PCBAs MUST be located within the SAME frame!

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg004


 AS4x/AS6x BOARD PLACEMENT MODELS:                                           
                        SINGLE MAINFRAME ASxx SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
           R |   |   |   |   |   | I =   |   |   |   |   |   |   | R
           E |   |   |   |   |   | N =   |   |   |   |   |   |   | E
           A |   |   |   |   |   | T =   |   | M |   | S |   |   | A
           R | I | I | I | I | B | E = M | M | E | N | T | D | D | R
             | S | S | S | M | M | R = B | C | M | E | A | M | M |
           T | D | D | D | L | T | C = A | S | O | P | C | A | A | T
           E | C | C | C | C | C | O =   | / | R |   | H |   |   | E
           R |   |   |   |   |   | N =   | M | Y |   | E |   |   | R
           M |   |   |   |   |   | N =   |   |   |   |   |   |   | M
           . |   |   |   |   |   | . =   |   |   |   |   |   |   | .
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

 ...............................................................................

             BOARD PLACEMENT - LEFT FRAME OF TWO FRAME ASxx SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R | I | I | I | I | I | I | I | I | I | L | B | T |
             | M | S | S | S | S | S | S | S | S | M | A | M | E |
             | I | D | D | D | D | D | D | D | D | L | N | T | R |
             | N | C | C | C | C | C | C | C | C | C |   | C | C |
             | A |   |   |   |   |   |   |   |   |   |   |   | O |
             | T |   |   |   |   |   |   |   |   |   |   |   | N |           
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


            BOARD PLACEMENT - RIGHT FRAME OF TWO FRAME ASxx SYSTEM           
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             |   |   |   |   |   |   |   |   |   |   |   |   | T |
             |   |   |   |   |   |   |   |   |   |   |   |   | E |
             |   | M | M |   | S |   | S |   |   |   | S | S | R |
             | M | C | E | N | T | N | T | D | D | D | P | P | M |
             | B | S | M | E | A | E | A | M | M | M | A | A | I |
             | A | / | O | P | C | P | C | A | A | A | R | R | N |
             |   | M | R |   | H |   | H |   |   |   | E | E | A |
             |   |   | Y |   | E |   | E |   |   |   |   |   | T |
             |   |   |   |   |   |   |   |   |   |   |   |   | O |
             |   |   |   |   |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

 ...............................................................................

NOTE| PCBA placement is extremely critical! Strict adherance to the plugging
      charts is required.

      For AS4x systems there is no STACHE PCB, move PCBAs shown to the right of
      the STACHE, left to fill the gap.

      If there are sufficient slots there may be additional MEMORY and DMA
      PCBAs.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg005


            BOARD PLACEMENT - LEFT FRAME OF THREE FRAME ASxx SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | T |   |   |   |   |   |   |   |   |   |   |   | I |           
             | E |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | T |
             | M | S | S | S | I | I | I | I | I | I | I | I | E |
             | I | P | P | P | S | S | S | S | S | S | S | S | R |
             | N | A | A | A | D | D | D | D | D | D | D | D | C |
             | A | R | R | R | C | C | C | C | S | C | C | C | O |
             | T | E | E | E |   |   |   |   |   |   |   |   | N |
             | O |   |   |   |   |   |   |   |   |   |   |   | N |
             | R |   |   |   |   |   |   |   |   |   |   |   | . |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|


           BOARD PLACEMENT - CENTER FRAME OF THREE FRAME ASxx SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             | I |   |   |   |   |   |   |   |   |   |   |   | I |           
             | N |   |   |   |   |   |   |   |   |   |   |   | N |           
             | T | I | I | I | I | I | I | I | I | I | L | B | T |
             | E | S | S | S | S | S | S | S | M | M | A | M | E |
             | R | D | D | D | D | D | D | D | L | L | N | T | R |
             | C | C | C | C | C | C | C | C | C | C |   | C | C |           
             | O |   |   |   |   |   |   |   |   |   |   |   | O |           
             | N |   |   |   |   |   |   |   |   |   |   |   | N |           
             | N |   |   |   |   |   |   |   |   |   |   |   | N |           
             | . |   |   |   |   |   |   |   |   |   |   |   | . |           
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

            BOARD PLACEMENT - RIGHT FRAME OF THREE FRAME ASxx SYSTEM
             |---|---|---|---|---|---|---|---|---|---|---|---|---|
             |   |   |   |   |   |   |   |   |   |   |   |   | T |
             |   |   |   |   |   |   |   |   |   |   |   |   | E |
             |   | M | M |   | S |   | S |   | S |   |   |   | R |
             | M | C | E | N | T | N | T | N | T | D | D | D | M |
             | B | S | M | E | A | E | A | E | A | M | M | M | I |
             | A | / | O | P | C | P | C | P | C | A | A | A | N |           
             |   | M | R |   | H |   | H |   | H |   |   |   | A |
             |   |   | Y |   | E |   | E |   | E |   |   |   | T |
             |   |   |   |   |   |   |   |   |   |   |   |   | O |
             |   |   |   |   |   |   |   |   |   |   |   |   | R |
             |---|---|---|---|---|---|---|---|---|---|---|---|---|

NOTE| PCBA placement is extremely critical! Strict adherance to the plugging
      charts is required.

      If the right frame is a dual backplane (22 slot) additional memory PCBAs
      may be inserted between the MCS/M and NEP PCBAs as well as additional DMAs
      plugged to the right of existing DMAs.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg006


AS20 BOARD PLACEMENT MODELS:

NOTE: The board placements for the AS 20 are absolute, no deviations are
      allowed, the system will not operate unless the boards are in the
      proper slots.

      The backplane contains integrated terminators requiring no slots (or
      rear-mounted connectors)

                   |---|---|---|---|---|---|---|---|---|---|
                   | 8 | 8 | 8 | 8 | E = M | M | N | D | D |
                   | / | / | / | / | X = B | C | E | M | M |
                   | 1 | 1 | 1 | 1 | T = A | S | P | A | A |
                   | 6 | 6 | 6 | 6 | E =   | / |   | I | I |
                   |   |   |   |   | N =   | M |   | I | I |
                   | W | W | W | W | D =   |   |   |   | / |
                   | A | A | A | A | E =   |   |   |   | 4 |
                   | Y | Y | Y | Y | R =   |   |   |   | M |
                   |   |   | / | / |   =   |   |   |   | B |
                   |   |   | I | B |   =   |   |   |   |   |
                   |   |   | M | M |   =   |   |   |   | M |
                   |   |   | L | T |   =   |   |   |   | E |
                   |   |   | C | C |   =   |   |   |   | M |
                   |   |   | / | / |   =   |   |   |   | O |
                   |   |   | L | I |   =   |   |   |   | R |
                   |   |   | A | M |   =   |   |   |   | Y |
                   |   |   | N | L |   =   |   |   |   |   |
                   |   |   | C | C |   =   |   |   |   |   |                 
                   |   |   |   | / |   =   |   |   |   |   |
                   |   |   |   | L |   =   |   |   |   |   |
                   |   |   |   | A |   =   |   |   |   |   |
                   |   |   |   | N |   =   |   |   |   |   |
                   |   |   |   | C |   =   |   |   |   |   |
                   |---|---|---|---|---|---|---|---|---|---|


ORIGINATOR: H. Mitchell/N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB006 Pg007


FIB 00007                                                             01/30/91

                *** Lowest Acceptable Revision Levels (LARL) ***

                              |-------------L.A.R.L.--------------|S
                              |7 |7 |8 |9 |9 |9 |9 |9 |A |A |A |A |P
                              |0 |1 |0 |0 |1 |4 |5 |6 |S |S |S |S |A L
        UNIT     | OPER. MBF  |0 |0 |0 |0 |0 |0 |0 |0 |2 |4 |6 |D |R V|  NACS
     DESCRIPION  | Part Number|0 |0 |0 |0 |0 |0 |0 |0 |0 |X |X |W |E L|  ICN
-----------------|------------|--|--|--|--|--|--|--|--|--|--|--|--|---|---------
ACS (Note 1)     | 903379-002 |AA|- |L |- |- |- |- |- |- |- |- |- | AA| MM896025
ACS (Note 2)     | 903379-003 |AD|AD|AD|- |- |- |- |- |- |- |- |- | AD| MM896026
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
AMS (Note 9)     | 903548-001 |- |- |- |L |L |- |L |L |- |- |- |- |  L| MM894015
AMS (Note 9)     | 903548-002 |- |- |- |N |N |- |N |N |- |- |- |- |  N| MM894016
AMS (Note 12)    | 903548-003 |- |- |- |S |S |P |S |S |- |- |- |- |  S| MM894017
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
Backplane        | 903193-001 |A |A |A |A |A |A |A |A |- |A |A |- |  A| MM891000
Backplane, dual  | 903731-001 |- |- |- |- |- |- |- |- |- |- |- |B |  B| MM892536
Backplane, split | 903623-001 |- |- |- |- |- |- |- |- |- |B |B |- |  B| MM892526
Backplane,AS20   | 903770-001 |- |- |- |- |- |- |- |- |A |- |- |- |  A| MM892630

BMTC (Note 3)    | 903413-001 |AE|AE|AE|AE|AE|AE|AE|AE|AE|AE|AE|AE| AE| MM896110
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
Chassis Ext. Lt  | 903199-002 |D |D |D |D |D |D |D |D |- |D |D |D |  D| MM890120
Chassis Ext. Rt  | 903199-003 |D |D |D |D |D |D |D |D |- |D |D |D |  D| MM890130
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
DMA-I (Note 11)  | 903554-001 |- |- |- |P |P |P |P |P |R |R |R |R | AA| MM894030
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
DMA-II (Note 14) | 903599-002 |- |- |- |M |M |M |M |M |N |N |N |N |  N| MM894039
DMA-II.(Note 14) | 903741-002 |- |- |- |E |E |E |E |E |F |F |F |F |  F| MM894038
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
DMA III (Note 15)| 903679-001 |- |- |- |J |J |J |J |J |- |J |J |J |  J| MM892527
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
Eight-Way        | 903383-001 |A |A |A |A |A |A |A |A |- |A |A |A |  A| MM896040
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
ESTK (Note 4)    | 903552-001 |- |- |- |G |G |G |G |G |- |- |- |- |  J| MM894005
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
IDC (With Cache) | 903550-001 |- |- |- |P |P |P |P |P |- |- |- |- |  P| MM894018
IDC (W/O  Cache) | 903550-002 |- |- |- |P |P |P |P |P |- |- |- |- |  P| MM894019
IDC-64 With Cache| 903597-001 |- |- |- |E |E |E |E |E |- |- |- |- |  H| MM894020
IDC-64 W/O Cache | 903597-002 |- |- |- |E |E |E |E |E |- |- |- |- |  H| MM894025
^^ (Note 10) ^^  |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
IMLC (Note 16)   | 903381-001 |K |K |K |K |K |K |K |K |- |- |- |- |  K| MM896031
IMLC (Int'l Use) | 903381-002 |N |N |N |N |N |N |N |N |- |- |- |- |  N| MM891820
IMLC (Note 16)   | 903534-001 |D |D |D |D |D |D |D |D |D |D |D |D |  D| MM896030
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
LAN  (Note 5)    | 903595-001 |F |F |F |F |F |F |F |F |- |- |- |- |  G| MM894055
LAN  (Note 5)    | 903595-002 |H |H |H |H |H |H |H |H |H |H |H |H |  H| MM892519
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
LS-700 P.S.(No 6)| 907295-001 |AA|- |AA|AA|- |AA|AA|AA|AA|AA|AA|AA| AK| MM896070
LS-700 P.S.(No 6)| 907295-002 |AA|AA|AA|AA|AA|AA|AA|AA|AA|AA|AA|AA| AK| MM894060
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
MBA (Note 17)    | 903617-001 |- |- |- |- |- |- |- |- |H |H |H |H |  H| MM892522


                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB007 Pg001


                              |----------L.A.R.L.-----------------|S
                              |7 |7 |8 |9 |9 |9 |9 |9 |A |A |A |A |P
                              |0 |1 |0 |0 |1 |4 |5 |6 |S |S |S |S |A L
        UNIT     | BASIC FOUR |0 |0 |0 |0 |0 |0 |0 |0 |2 |4 |6 |D |R V| NACS
     DESCRIPION  | Part Number|0 |0 |0 |0 |0 |0 |0 |0 |0 |X |X |W |E L|  ICN
-----------------|------------|--|--|--|--|--|--|--|--|--|--|-----|---|--------
MCS (Note 7)     | 903374-001 |L |L |L |S |S |S |S |S |_ |_ |_ |_ |  T| MM896000
MCS (Note 7)     | 903374-002 |V |V |V |V |V |V |V |V |_ |_ |_ |_ |  V| MM896045
MCS/M.(Note 7)   | 903718-001 |_ |_ |_ |_ |_ |_ |_ |_ |H |G |G |G |  H| MM892535
MCS/M (Note 7)   | 903718-002 |_ |_ |_ |_ |_ |_ |_ |_ |H |H |H |H |  H| MM892500

MDI              | 903361-001 |L |L |L |- |- |- |- |- |- |- |- |- |  L| MM896010
MDI              | 903408-001 |K |K |K |- |- |- |- |- |- |- |- |- |  K| MM896010
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
MEM .5 MB (No 8) | 903349-007 |J |J |J |V |V |V |V |V |- |- |- |- |  V| MM896100
MEM  1 MB (No 8) | 903349-005 |J |J |J |V |V |V |V |V |- |- |- |- |  V| MM896095
MEM  1 MB (No 8) | 903516-003 |A |A |A |E |E |E |E |E |- |- |- |- |  J| MM896090
MEM  2 MB (No 8) | 903516-001 |A |A |A |E |E |E |E |E |- |- |- |- |  J| MM896250
MEM  4 MB (No 8) | 903516-002 |A |A |A |E |E |E |E |E |- |- |- |- |  J| MM896260

MEM 4/8/16  4MB  | 903621-004 |- |- |- |F |F |F |F |F |- |- |- |- |  N| MM896255
MEM 4/8/16  8MB  | 903621-003 |- |- |- |F |F |F |F |F |- |- |- |- |  N| MM896265
MEM 4/8/16 16MB  | 903621-001 |- |- |- |F |F |F |F |F |- |- |- |- |  N| MM896270
MEM.4/8/16  4MB  | 903621-008 |- |- |- |K |K |K |K |K |N |N |N |N |  N| MM892525
MEM 4/8/16  8MB  | 903621-007 |- |- |- |K |K |K |K |K |N |N |N |N |  N| MM892524
MEM 4/8/16 16MB  | 903621-005 |- |- |- |K |K |K |K |K |N |N |N |N |  N| MM892523
^^(Note 18)^^    |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
MPC              | 903500-001 |H |H |- |- |- |- |- |- |- |- |- |- |  H| MM894000
MPC              | 903546-001 |B |B |- |- |- |- |- |- |- |- |- |- |  B| MM894000
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
NEP  (Note 19)   | 903705-001 |- |- |- |- |- |- |- |- |G |E |E |K |  K| MM892528
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
PS II Pow Supply | 903338-001 |E |- |E |E |- |E |E |E |E |E |E |E |  E| MM896080
PS II Pow Supply | 903513-001 |A |A |A |A |A |A |A |A |A |A |A |A |  A| MM894045
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
PS -5V (F621 DRV)| 916187-001 |- |- |- |E |E |E |E |E |- |E |E |E |  E| MM892538
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
Sixteen-way.     | 903437-001 |J |J |J |J |J |J |J |J |J |J |J |J |  J| MM896140
Sixteen-way      | 903437-002 |R |R |R |R |R |R |R |R |R |R |R |R |  R| MM896141
^^NOTE 22^^      |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
SMDI             | 903531-001 |- |- |B |B |- |B |B |B |- |B |B |B |  B| MM560000
SMDI             | 903591-001 |- |- |A |A |- |A |A |A |- |A |A |A |  E| MM294001
SMDII (Note 13)  | 903633-001 |- |- |D |D |D |D |D |D |D |D |D |D |  D| MM894075
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
STACHE (Note 20) | 903707-001 |- |- |- |- |- |- |- |- |- |D |D |F |  F| MM892529
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
TDP              | 903217-001 |W |W |W |- |- |- |- |- |- |- |- |- |  W| MM890090
TDP              | 903453-001 |J |J |J |- |- |- |- |- |- |- |- |- |  J| MM890090
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
Terminator       | 903199-001 |D |D |D |D |D |D |D |D |- |- |- |- |  D| MM890050
Terminator(No 21)| 903199-004 |H |H |H |H |H |H |H |H |- |H |H |H |  H| MM890135
Terminator,Hi Spd| 903769-001 |- |- |- |- |- |- |- |- |- |- |- |A |  A| MM892547
                 |            |  |  |  |  |  |  |  |  |  |  |  |  |   |
VCON             | 903377-001 |C |C |C |C |C |C |C |C |- |- |- |- |  C| MM896050


                            (continue on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB007 Pg002


 ___________________________________NOTES______________________________________ 
  1. On 8000 systems, revision T or later of ACS is required for BMTC boot.
     Revision AA or later of ACS is required for 8" Priam disk boot.
  2. ACS 903379-003 required to support the Tandberg 1/4" streamer tape drive.

  3. The BMTC must be at Rev. T or later in order to support MTCS. (The O.S.
     must also be at or above Release 8.6A for BMTC/MTCS support.

     The BMTC must be at Rev. U or later in order to support the GCR tape drive

     BMTC Rev Z allows placement to the left of the CPUs.

  4. On 9X00 systems with more than 12 MB memory, the ESTK must be at Rev. J or 
     later.

  5. LAN controller support requires 8.6/9.6 or later software.

     LAN controller P/N 903595-001 not to be used on AS, only 903595-002.

  6. The 7100 and 9100 Systems will accept only the narrow LS-700 Power Supply, 
     part number MM894060 (907295-002).

  7. On 9X00 systems with more than 12 MB memory, the MCS must be:
             P/N 903374-001 - at or above Revision T                         
             P/N 903374-002 - at or above Revision V

     On 9XXX systems with the 4/8/16MB memory PCBAs, MCS P/N 903374-002 is
     required.

     MCS/M P/N 903718-001 and 903718-002 are only used on AS System.

     Rev. "H" changes a 903718-001 into a 903718-002 and must be used for a
     SCSI boot (DMA-II).

     MCS/M Rev J required for 19.2K baud and 7/8 bit data support for T0.

  8. On 9XXX systems with more than 12 MB memory, only  PCBA P/N 903516-00X
     may be used and it must be at Rev. J.
     P/N's 903349-00X cannot be addressed above 12 MB.
  9. For support of main memory above 12 MB, the AMS must be at Rev. N or later,
     and MUST be P/N 903548-002. P/N 903548-001 DOES NOT SUPPORT greater than
     12 Megabytes of main memory.

 10. For support of main memory above 12 MB, the IDC-64 must be at Rev. E or
     later. The IDC DOES NOT SUPPORT more than 12 MB of main memory.

 11. For support of main memory above 12 MB or to support the 4220 printer, the 
     DMA-I must be at Rev. G or later.

     DMA-I must be at or above Rev R for systems which also has a DMA-III.

     DMA-I Rev R is required for 4/8/16 MB Memory for power fail.

     DMA-I Rev AA is required for systems which also has a DMA-II.

     DMA-I Rev Z is required for Advanced Series Systems with more than 2 DMAs.


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB007 Pg003


 12. The AMS PCBA P/N 903548-003 (Rev P) is required for SCSI controller support
     (9400 systems) but may be used as replacements for either the -001 or
     -002 AMS PCBAs in other 9xxx systems.

     The AMS PCBA P/N 903548-003 at or above Rev S is required for support of
     the Fujitsu F621 600 MB 8" fixed disk.

 13. The SMDII PCB at REV D has two .1uf capacitors added to increase its
     ESD immunity. The caps are on IC 5D between pins 7 & 13 and on IC 5B
     between pins 7 & 1.

 14. DMA-II P/N 903599-001 at or above Rev M is required if there are DMA-Is and
     DMA-IIs in the same system. Rev M will support M380 & M760 Disk Drives and
     changes 903599-001 to a 903599-002.

     DMA-II P/N 903741-002 at or above Rev E is required if there are DMA-I's
     and DMA-II's in the same system. Rev E will support M380 & M760 Disk Drives
     and changes 903741-001 to a 903741-002.

     DMA-II P/N 903741-002 at Rev E and 903599-002 at Rev M are interchangeable
     DMA-II P/N 903741-002 at Rev F and 903599-002 at Rev N are required for any
     system using Rev 9/10.6 G  O.S.

 15. DMA-III P/N 903679-001 at Rev E  is required for mixing with DMA Is & IIs.

     DMA-III P/N 903679-001 Rev G is required if there are more than 2 DMAs.

 16. NIMLC P/N 903381 may not be used with AS System, only NIMLC P/N 903534-001
     Rev D to be used with AS.
 17. MBA P/N 903617-001 must be Rev H for Double-Wide Backplane.

 18. MEM 4/8/16 P/N 903621-005/007/008 must be Rev L for Double-Wide Backplane.

     MEM 4/8/16 MB Rev N required for fully populated 9x30 systems (30 + PCBAs)

 19. NEP P/N 903705-001 must be Rev K for Double-Wide Backplane.

 20. STACHE P/N 903707-001 must be Rev F for Double-Wide Backplane.

 21. TERMINATOR P/N 903199-004 must be used with all systems using 4/8/16 MEG
     MEM PCBA's.

 22. Sixteen-way P/N 903437-002 at Rev R, n.6H O.S. and cable 916509 required
     for hardware flow control.

ORIGINATOR: J.O'Brien
MODIFIED BY: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB007 Pg004


FIB 00008                                                             06/23/88

                      *** ACS PCBA (7xxx/8xxx Systems) ***

The following information applies to these PCBA part numbers:

                        MM896020 - ACS PCBA - 903379-001
                        MM896025 - ACS PCBA - 903379-002
                        MM896026 - ACS PCBA - 903379-003

NOTE: The 903379-003 ACS PCBA is REQUIRED for the 7100 system, it may be used as
      a replacement for either the -001 or -002 PCBAs in other MPX systems.

There are no D.I.P. switches to be set on the ACS PCBA.


___________________________________L.E.D.s______________________________________
There are two LEDs at the top of the PCBA. Their function is:

 CR1 (red, uppermost) indicates a parity error in the BOOT PROM Microcode.
 CR2 (red, lowermost) indicates a parity error in the WCS Microcode.

There is a momentary switch - SW1, just below the LEDs, which resets the errors.

ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB008 Pg001


FIB 00009                                                             05/05/89

                        *** AMS PCBA (9xxx Systems) ***

 The following information applies to these part numbers:

                        MM894015 - AMS PCBA - 903548-001
                        MM894016 - AMS PCBA - 903548-002
                        MM894017 - AMS PCBA - 903548-003

NOTE: AMS PCBA P/N MM894016/903548-002, at or above Revision N, is required if
      installed in systems with more than 12 megabytes of main memory.

      AMS PCBA P/N MM894015/903548-001 DOES NOT SUPPORT greater than 12 mega-
      bytes of main memory.

      AMS PCBA P/N MM894017/903548-003 is required for SCSI controller support
      (9400 system) but may be used to replace -001 or -002 AMS PCBAs in other
      9xxx systems.

 There are no dip switches to be set on these PCBAs.

______________________________L.E.D.s______________________________

There are two LEDs, mounted at the top front, which function as follows:

DS1 (red, upper) indicates a BOOT PROM parity error.
DS2 (red, lower) indicates a WCS parity error.

Switch - S1 is a pushbutton type, mounted below DS2, which functions to reset
the error LEDs - DS1 and DS2.

ORIGINATOR: H. MITCHELL


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FIB 00010                                                             05/29/87

                      *** AUXILIARY PCBA (810 Systems) ***

The following information applies to these PCBA part numbers:

             MM890080 - AUXILIARY - 903209-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set Switch 5, SW-5, at location 9R as follows:

                      Switch Positions
                       8 7 6 5 4 3 2 1
                       O C O C C O C C                                       

___________________________NOTES____________________________

The four SENSE SWITCHES on the front edge of this PCBA are numbered 0,1,2 and
3, from bottom to top. These switches are in the OFF position when DOWN.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB010 Pg001


FIB 00011                                                             06/10/93

                     *** BMTC PCBA (7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

MM896110 - BMTC (Buffered Magnetic Tape Controller) - 903413-001 (See Note 1)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The ATTACHED TAPE UNIT TYPE switch, SW-3, at location 9A, options are set
as follows:

* If there are multiple 1/2" tape drives attached to this controller (including
  HCC tape drives), a corresponding Unit No. switch must be closed on switch
  SW-3 for each drive attached.

* If there are multiple BMTCs in the same CCA, the first tape drive attached to
  each BMTC is addressed as Unit 0, the second drive on each BMTC is addressed
  as Unit 1, etc.

* If there are multiple tape drives attached to multiple BMTCs, booting can only
  be done from the BMTC with the lowest ISDC addresses.

                      Switch  Positions
                      9 8 7 6 5 4 3 2 1
                      -----------------
Positions 9...........X - - - - - - - - .....Not Used

Positions 8,7.6...... - O O O - - - - - .....Must be open

Position 5........... - - - - O - - - - .....No 1/4" MCS attached
Position 5........... - - - - C - - - - .....1/4" MCS attached

Positions 4,3,2 & 1   - - - - - O O O O .....If no MTR,MTS,HCC, or GCR attached
Positions 4,3,2 & 1   - - - - - - - - C .....Unit 0, MTR,HCC,MTS or GCR attached
Positions 4,3,2 & 1   - - - - - - - C - .....Unit 1, MTR,HCC,MTS or GCR attached
Positions 4,3,2 & 1   - - - - - - C - - .....Unit 2, MTR,HCC,MTS or GCR attached
Positions 4,3,2 & 1   - - - - - C - - - .....Unit 3, MTR,HCC,MTS or GCR attached

Switch 2, SW-2, at location 2S, positions 7,8 & 9 must be set per the
following options:
                           SW. Pos.
                       9 8 7 6 5 4 3 2 1
                       -----------------
    Position 9.........C - - - - - - - - ....Online
    Position 9.........O - - - - - - - - ....Offline - Endless Self-Test
    Position 8.........- O - - - - - - - ....1/2" MTR attached (Reel to Reel)
    Position 8.........- C - - - - - - - ....1/2" MTS, HCC or GCR attached
    Position 7.........- - C - - - - - - ....BMTC generates parity (See Note 2)
    Position 7.........- - O - - - - - - ....Drive generates parity (See Note 2)

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB011 Pg001


Switch 2, SW-2, at location 2S, positions 1 through 6 must be set to assign
two ISDC addresses to the BMTC. The setting options are as follows:

ISDC      Sw. Pos.          ISDC      Sw. Pos.          ISDC      Sw. Pos.
 No.  9 8 7 6 5 4 3 2 1      No.  9 8 7 6 5 4 3 2 1      No.  9 8 7 6 5 4 3 2 1
----- -----------------     ----- -----------------     ----- -----------------.
 2/3  - - - O C C O O C     24/25 - - - C O O C O O     46/47 - - - C O C C C C
 4/5  - - - O C C O C O     26/27 - - - C O O C O C     48/49 - - - C C O O O O
 6/7  - - - O C C O C C     28/29 - - - C O O C C O     50/51 - - - C C O O O C
 8/9  - - - O C C C O O     30/31 - - - C O O C C C     52/53 - - - C C O O C O
10/11 - - - O C C C O C     32/33 - - - C O C O O O     54/55 - - - C C O O C C
12/13 - - - O C C C C O     34/35 - - - C O C O O C     56/57 - - - C C O C O O
14/15 - - - O C C C C C     36/37 - - - C O C O C O     58/60 - - - C C O C O C
16/17 - - - C O O O O O     38/39 - - - C O C O C C     60/61 - - - C C O C C O
18/19 - - - C O O O O C     40/41 - - - C O C C O O     62/63 - - - C C O C C C
20/21 - - - C O O O C O     42/43 - - - C O C C O C                          
22/23 - - - C O O O C C     44/45 - - - C O C C C O


___________________________________L.E.D.s___________________________________

There are two LEDs at the top of the PCBA. They function as follows:

 DS2 (green) indicates successful completion of self-test.
 DS1 (red) indicates BMTC parity error.

Pushbutton switch - S1 is mounted beneath DS1 and resets DS1.

___________________________________JUMPERS______________________________________

Near location 8CC are JMP 1 and JMP 2. JMP 1 should be open, JMP 2 should be
jumpered.
_____________________________________NOTES______________________________________

 1. The addresses shown in the above table DO NOT apply to the 9X00 Systems.
     Any addresses other than those shown above are invalid.

 2. The PREFERRED setting for position 7 of SW-2 is CLOSED. This causes parity
    to be generated by the BMTC. There is an associated switch in the MTR and
    MTS that must be set according to how BMTC SW-2 is set:

                                                               MTS
                               MTR                        Formatter PCBA
                          Formatter PCBA               Switch at location 5W
                           Switch S1-3              Position 5        Position 6
.                        ----------------           ----------        ----------
   BMTC S2-7 CLOSED............OPEN...................CLOSED.............OPEN
   BMTC S2-7 OPEN............ CLOSED...................OPEN.............CLOSED

   HCC and GCR default switch settings support BMTC generated parity (BMTC
   SW2-7 CLOSED).

 3. BMTC PCBAs at all revision levels prior to Rev Z MUST be installed to the
    right of the CPU PCBA sets. Revision Z and above may be installed either
    to the right or the left.

ORIGINATOR: H. Mitchell
            N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB011 Pg002


FIB 00012                                                             06/10/93

                    *** BMTC PCBA (9xxx & ASxx Systems) ***

The following information applies to this PCBA part number:

MM896110 - BMTC (Buffered Magnetic Tape Controller) - 903413-001 (See Note 1)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The ATTACHED TAPE UNIT TYPE switch, SW-3, at location 9A, options are set
as follows:

* If there are multiple 1/2" tape drives attached to this controller (including
  HCC tape drives), a corresponding Unit No. switch must be closed on switch
  SW-3 for each drive attached.

* If there are multiple BMTCs in the same CCA, the first tape drive attached to
  each BMTC is addressed as Unit 0, the second drive on each BMTC is addressed
  as Unit 1, etc.

* If there are multiple tape drives attached to multiple BMTCs, booting can only
  be done from the BMTC with the lowest ISDC addresses.

                      Switch  Positions
                      9 8 7 6 5 4 3 2 1
                      -----------------
Position  9.......... X - - - - - - - - .....Not Used

Positions 8,7,6...... - O O O - - - - - .....Must be OPEN

Position 5........... - - - - O - - - - .....No 1/4" MCS attached
Position 5........... - - - - C - - - - .....1/4" MCS attached

Positions 4,3,2 & 1   - - - - - O O O O .....If no MTR,MTS,HCC, or GCR attached
Positions 4,3,2 & 1   - - - - - - - - C .....Unit 0, MTR,MTS,HCC or GCR attached
Positions 4,3,2 & 1   - - - - - - - C - .....Unit 1, MTR,MTS,HCC or GCR attached
Positions 4,3,2 & 1   - - - - - - C - - .....Unit 2, MTR,MTS,HCC or GCR attached
Positions 4,3,2 & 1   - - - - - C - - - .....Unit 3, MTR,MTS,HCC or GCR attached
 ...............................................................................
Switch 2, SW-2, at location 2S, positions 1 through 6 must be set to assign
two ISDC addresses to the BMTC. The setting options are as follows:

ISDC      Sw. Pos.          ISDC      Sw. Pos.                               
 No.  9 8 7 6 5 4 3 2 1      No.  9 8 7 6 5 4 3 2 1                          
----- -----------------     ----- -----------------                          
 2/3  - - - O C C O O C     40/41 - - - O O C C O O
 4/5  - - - O C C O C O     42/43 - - - O O C C O C                          
 6/7  - - - O C C O C C     44/45 - - - O O C C C O
 8/9  - - - O C C C O O     46/47 - - - O O C C C C
10/11 - - - O C C C O C     48/49 - - - O C O O O O
12/13 - - - O C C C C O     50/51 - - - O C O O O C                          
14/15 - - - O C C C C C     52/53 - - - O C O O C O
Do not use 16 thru 31       54/55 - - - O C O O C C                          
32/33 - - - O O C O O O     56/57 - - - O C O C O O
34/35 - - - O O C O O C     58/59 - - - O C O C O C
36/37 - - - O O C O C O     60/61 - - - O C O C C O
38/39 - - - O O C O C C     62/63 - - - O C O C C C

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB012 Pg001


Switch 2, SW-2, at location 2S, positions 7,8 & 9 must be set per the
following options:
                           SW. Pos.
                       9 8 7 6 5 4 3 2 1
                       -----------------
    Position 9.........C - - - - - - - - ....Online
    Position 9.........O - - - - - - - - ....Offline - Endless Self-Test
    Position 8.........- O - - - - - - - ....1/2" MTR attached
    Position 8.........- C - - - - - - - ....1/2" MTS, GCR or HCC attached
    Position 7.........- - C - - - - - - ....BMTC generates parity (See Note 2)
    Position 7.........- - O - - - - - - ....Drive generates parity (See Note 2)


___________________________________L.E.D.s___________________________________

There are two LEDs at the top of the PCBA. They function as follows:

 DS2 (green) indicates successful completion of self-test.
 DS1 (red) indicates BMTC parity error.

Pushbutton switch - S1 is mounted beneath DS1 and resets DS1.

___________________________________JUMPERS______________________________________

Near location 8CC are JMP 1 and JMP 2. JMP 1 should be open, JMP 2 should be
jumpered.
_____________________________________NOTES______________________________________

 1. The addresses shown in the above table apply ONLY to 9xxx and ASxx Systems.
     Any addresses other than those shown above are invalid.

 2. The PREFERRED setting for position 7 of SW-2 is CLOSED. This causes parity
    to be generated by the BMTC. There is an associated switch in the MTR
    and MTS that must be set according to how BMTC SW-2 is set:
                                                               MTS
                               MTR                        Formatter PCBA
                          Formatter PCBA               Switch at location 5W
                           Switch S1-3              Position 5        Position 6
.                        ----------------           ----------        ----------
   BMTC S2-7 CLOSED............OPEN...................CLOSED.............OPEN
   BMTC S2-7 OPEN............ CLOSED...................OPEN.............CLOSED

   HCC and GCR default switch settings support BMTC generated parity (BMTC
   SW2-7 CLOSED).

 3. BMTC PCBAs at all revision levels prior to Rev Z MUST be installed to the
    right of the CPU PCBA sets. Revision Z and above may be installed either
    to the right or the left.

  ORIGINATOR: H. MITCHELL
              N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB012 Pg002


FIB 00013                                                             05/29/87


                  *** COMPUTING ENGINE PCBA (810 Systems) ***                

The following information applies to this PCBA part number:

             MM890020 - COMPUTING ENGINE - 903221-001

____________________________________NOTES______________________________________

There are no D.I.P. switches to be set on the C.E. PCBA.

SW-1, accessable from the front, at the bottom of the PCBA, Has three positions:

 1. The UP position is used to place the respective Computing Engine OFFLINE.
 2. The CENTER position is the normal, ONLINE position.
 3. The DOWN position is used to inhibit the respective Computing Engine from
    becoming the I/O Engine at Boot time.

   ** NOTE ** Do not change the position of switch 1 while the system is running
              as the system will go down if you do so!

There are three LEDs at the top of the PCBA:

 1. The TOP LED is green and glows when the Computing Engine is ON-LINE (CR1).
 2. The CENTER LED glows to indicate a parity problem in the Computing Engine
    and is amber in color (CR2).
 3. The BOTTOM LED is a bi-color type. It glows amber to indicate PROM Parity
    and glows red to indicate a WCS error (CR3).

SW-2, just above SW-1, is a momentary type used to extinguish the error LEDs -
CR2 and CR3.

ORIGINATOR: H. MITCHELL


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FIB 00014                                                             05/29/87

                        *** DATA PCBA (810 Systems) ***

The following information applies to this PCBA part number:

             MM890030 - DATA - 903213-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the Computer Engine No. Switch, SW-5, at location 1C as follows:

                      Switch  Positions
Computer Engine        8 7 6 5 4 3 2 1
---------------        ---------------                                       
       0               O O O O O O O C

       1               O O O O O O C O                                       

       2               O O O O O C O O

ORIGINATOR: H. MITCHELL


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FIB 00015                                                             10/30/87

                       *** DMA-I PCBA (9xxx Systems) ***

 The following information applies to these PCBA part numbers:

         MM894030 - DMA-I PCBA - 903554-001 (See Notes below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

 Set the Printer Configuration switch - SW2 (at location 6J) as follows:

                       PRINTER 1 : PRINTER 0
   PRINTER           SW2  Switch : Positions
    TYPE              :9:8:7:6:5 : 4:3:2:1:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4201 Matrix     :O:C:O:O:O : C:O:O:O:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4209 Band       :O:O:O:O:C : O:O:O:C:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4214 DMP        :O:C:O:C:O : C:O:C:O:
----------------------:-:-:-:-:--:--:-:-:-:
Undefined             :O:O:O:C:C : O:O:C:C:
-------------------------------------------

SW2, position 9 must be in the OPEN position for normal operation. This switch
is placed in the CLOSED position to cause the DMA to self-test continuously.

 Set the Disk Drive Configuration switches - SW3 (location 6R), for Drives 1 and
0, and SW4 (location 6S), for Drives 2 and 3, as follows:

                    SW3 = DISK 1 : SW3 = DISK 0
    DISK            SW4 = DISK 3 : SW4 = DISK 2
    TYPE              :9:8:7:6:5 : 4:3:2:1:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4510 8" P314    :X:O:O:O:O : O:O:O:O:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4501 14" P66    :X:O:O:O:C : O:O:O:C:
-----------------------:-:-:-:-:--:--:-:-:-:                                 
Model 4505 Rem T83    :X:O:O:C:O : O:O:C:O:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4501 14" P154   :X:O:O:C:C : O:O:C:C:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4502 Rem T303   :X:O:C:O:O : O:C:O:O:
----------------------:-:-:-:-:--:--:-:-:-:
UNDEFINED             :X:O:C:O:C : O:C:O:C:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4510 8" P207    :X:O:C:C:O : O:C:C:O:
----------------------:-:-:-:-:--:--:-:-:-:
Model 4510 8" P303    :X:O:C:C:C : O:C:C:C:
-------------------------------------------


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB015 Pg001


_____________________________JUMPERS______________________________

Jumpers JMP1 and JMP2 select DMA PCBA PROM size. They MUST be installed as
follows:
                                 JMP1 - REMOVED
                                 JMP2 - INSTALLED

Jumpers JMP3 and JMP4 select the clock that will appear on connector J10. These
jumpers MUST be installed as follows:

                                 JMP3 - REMOVED
                                 JMP4 - INSTALLED

______________________________NOTES________________________________

1. The DMA controller MUST be installed in the first available card slot to the
   right of the right-most IDC PCBA.

2. There is no address switch for the DMA PCBA.

3. There are four LEDs near the top of the DMA PCBA. They function as follows:

   DS1 (red, upper) indicates a main memory parity error.
   DS2 (yellow) indicates a main memory time-out error.
   DS3 (green) indicates the DMA has successfully completed self-test.
   DS4 (red, lower) indicates a DMA buffer parity error.

4. Pushbutton switch - SW1 is used to reset the error LEDs. It is mounted
   between DS2 and DS3                                                       

5. In order to support greater than 12 Megabytes of main memory, the IDC-I PCBA
   must be at or above Revision G.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB015 Pg002


FIB 00016                                                             10/30/87

                        *** ESTK PCBA (9xxx Systems) ***

 The following information applies to the this part number:

                 MM894005 - ESTK PCBA - 903552-001 (See Note 1)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

 There are two artwork versions of this PCBA. The Processor Address switch - SW4
will be located either near the jumpers at location 6-DD (old style) or at
location 9-CC (new style). The old style is an eight position switch and the new
style is a four position switch.

 Set the Processor Address switch SW4 as follows:

                        CPU            Switch  Positions
                        Address        :8:7:6:5:4:3:2:1:
                        ---------------:-:-:-:-:-:-:-:-:
                         0             :C:C:X:X:X:X:X:X:
    OLD STYLE -->       ---------------:-:-:-:-:-:-:-:-:
                         1             :C:O:X:X:X:X:X:X:
                        ---------------:-:-:-:-:-:-:-:-:
                         2             :O:C:X:X:X:X:X:X:
                        --------------------------------                     

                                  - OR -                                     

                        CPU            Switch  Positions
                        Address            :4:3:2:1:
                        -------------------:-:-:-:-:
                         0                 :X:X:C:C:
    NEW STYLE -->       -------------------:-:-:-:-:
                         1                 :X:X:O:C:
                        -------------------:-:-:-:-:
                         2                 :X:X:C:O:
                        ----------------------------                         

_____________________________L.E.D.s______________________________

There are four LEDs on this PCBA, which function as follows:

DS1 (amber, upper) indicates the RSTACK is disabled.
DS2 (amber, lower) indicates the CPU clock is held.
DS3 (red) indicates an RSTACK parity error.
DS4 (green) indicates the CPU is on-line.                                    

_________________________OTHER SWITCHES___________________________

 Toggle switch SW1, mounted above the red LED DS3, has two positions:
 The DOWN position enables the RSTACK.
 The UP position disables the RSTACK.

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB016 Pg001


 Pushbutton switch SW2, mounted beneath the red LED DS3, resets the red LED, DS3
 Toggle switch SW3, mounted under the green LED DS4, has three positions:
 The UP position forces the CPU off-line.
 The CENTER position places the CPU on-line.
 The DOWN position inhibits the I/O CPU function.

______________________________JUMPERS______________________________

 There is a jumper block located at 6-DD, labeled E1, E2 and E3. Which is
 plugged according to the RSTACK capacity.

 The correct setting is a jumper installed from E1 to E2.

_______________________________NOTES_______________________________

1. In order for the ESTK PCBA to support greater than 12 megabytes of main
   memory, it must be at or above Revision J.

ORIGINATOR: H. Mitchell


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB016 Pg002


FIB 00017                                                             01/11/88

                    *** IDC & IDC-64 PCBA (9xxx Systems) ***

 The following information applies to these part numbers:

                    MM894018 - IDC (with cache) - 903550-001
                    MM894019 - IDC (without cache) - 903550-002
                    MM894020 - IDC-64 (with cache) - 903597-001
                    MM894025 - IDC-64 (without cache) - 903597-002


 There are no dip switches to set on these PCBAs. However, on the IDC-64 PCBAs,
there is a jumper which must be plugged as follows:

If Main Memory is less than or equal to 12 MB install jumper from E6 to E7.

If Main Memory is greater than 12 MB remove jumper from E6 to E7.

IDC-64 PCBAs can be used to replace IDC PCBAs if the jumper is installed.

IDC PCBA will not support main memory above 12 MB.

IDC-64 PCBA must be at or above Revision E in order to support greater than
12 Megabytes of main memory.

______________________________L.E.D.s______________________________

There are four LEDs mounted at the top of these PCBAs. They function as follows:

 DS1 (red) indicates a parity error while accessing main memory.
 DS2 (amber, upper) indicates a memory time-out error.
 DS3 (amber, lower) indicates Data Cache or Opcode Cache parity error.
 DS4 (green) indicates Data Cache is enabled.

______________________________SWITCHES______________________________

There are two switches accessable from the front:

S1 is a pusbutton switch mounted between DS2 and DS3. It functions to reset
the error LEDs - DS1,DS2 and DS3.

S2 is a three position toggle switch mounted above DS3:
The UP position disables Opcode Caching and Data Caching.
The CENTER position enables Opcode Caching and Data Caching.
The DOWN position disables Opcode Caching only.

ORIGINATOR: H. Mitchell


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB017 Pg001


FIB 00018                                                             05/29/87

                        *** LANC PCBA (9xxx Systems) ***

The following information applies to this part number:

                       MM894055 - LANC PCBA - 903595-001

Set the Board Address switch - S1 as follows:                                

Bd.      Sw. Pos.           Bd.      Sw. Pos.           Bd.      Sw. Pos.
No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1
--------------------        --------------------        -------------------- 
 0.....Not Used             22.....Not Used             44.....O O C C C O O
 1.....O C C O O O C        23.....Not Used             45.....O O C C C O C
 2.....O C C O O C O        24.....Not Used             46.....O O C C C C O
 3.....O C C O O C C        25.....Not Used             47.....O O C C C C C
 4.....O C C O C O O        26.....Not Used             48.....O C O O O O O
 5.....O C C O C O C        27.....Not Used             49.....O C O O O O C
 6.....O C C O C C O        28.....Not Used             50.....O C O O O C O
 7.....O C C O C C C        29.....Not Used             51.....O C O O O C C
 8.....O C C C O O O        30.....Not Used             52.....O C O O C O O
 9.....O C C C O O C        31.....Not Used             53.....O C O O C O C
10.....O C C C O C O        32.....O O C O O O O        54.....O C O O C C O
11.....O C C C O C C        33.....O O C O O O C        55.....O C O O C C C
12.....O C C C C O O        34.....O O C O O C O        56.....O C O C O O O
13.....O C C C C O C        35.....O O C O O C C        57.....O C O C O O C
14.....O C C C C C O        36.....O O C O C O O        58.....O C O C O C O
15.....O C C C C C C        37.....O O C O C O C        59.....O C O C O C C
16.....Not Used             38.....O O C O C C O        60.....O C O C C O O
17.....Not Used             39.....O O C O C C C        61.....O C O C C O C
18.....Not Used             40.....O O C C O O O        62.....O C O C C C O
19.....Not Used             41.....O O C C O O C        63.....O C O C C C C
20.....Not Used             42.....O O C C O C O
21.....Not Used             43.....O O C C O C C

 Set the Controller Subtype switch - S2 as follows:

               Position 1 - OPEN , positions 2 through 8 CLOSED.             

 Switch 3 - S3 selects which endless self-test will be run. This switch is set
in hexadecimal form as shown in the following example:

                        MSB SETTING     LSB SETTING
                        8  7  6  5      4  3  2  1
                        ----------      ----------                           
        EXAMPLE:        C  C  C  O      O  C  O  C  = TEST 1A

 NOTE: For normal online operation set all S3 positions to CLOSED.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB018 Pg001


 Set the LAN Station Address switch 4 - S4 as follows:

 Station     Switch Positions          Station      Switch Positions         
 Address      :3:4:5:6:7:8:            Address       :3:4:5:6:7:8:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    0         :C:C:C:C:C:C:              32          :O:C:C:C:C:C:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    1         :C:C:C:C:C:O:              33          :O:C:C:C:C:O:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    2         :C:C:C:C:O:C:              34          :O:C:C:C:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    3         :C:C:C:C:O:O:              35          :O:C:C:C:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    4         :C:C:C:O:C:C:              36          :O:C:C:O:C:C:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    5         :C:C:C:O:C:O:              37          :O:C:C:O:C:O:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    6         :C:C:C:O:O:C:              38          :O:C:C:O:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    7         :C:C:C:O:O:O:              39          :O:C:C:O:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    8         :C:C:O:C:C:C:              40          :O:C:O:C:C:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
    9         :C:C:O:C:C:O:              41          :O:C:O:C:C:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   10         :C:C:O:C:O:C:              42          :O:C:O:C:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   11         :C:C:O:C:O:O:              43          :O:C:O:C:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   12         :C:C:O:O:C:C:              44          :O:C:O:O:C:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   13         :C:C:O:O:C:O:              45          :O:C:O:O:C:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   14         :C:C:O:O:O:C:              46          :O:C:O:O:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   15         :C:C:O:O:O:O:              47          :O:C:O:O:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   16         :C:O:C:C:C:C:              48          :O:O:C:C:C:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   17         :C:O:C:C:C:O:              49          :O:O:C:C:C:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   18         :C:O:C:C:O:C:              50          :O:O:C:C:O:C:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   19         :C:O:C:C:O:O:              51          :O:O:C:C:O:O:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   20         :C:O:C:O:C:C:              52          :O:O:C:O:C:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   21         :C:O:C:O:C:O:              53          :O:O:C:O:C:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   22         :C:O:C:O:O:C:              54          :O:O:C:O:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   23         :C:O:C:O:O:O:              55          :O:O:C:O:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   24         :C:O:O:C:C:C:              56          :O:O:O:C:C:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   25         :C:O:O:C:C:O:              57          :O:O:O:C:C:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   26         :C:O:O:C:O:C:              58          :O:O:O:C:O:C:

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB018 Pg002


 Station     Switch Positions          Station      Switch Positions         
 Address      :3:4:5:6:7:8:            Address       :3:4:5:6:7:8:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   27         :C:O:O:C:O:O:              59          :O:O:O:C:O:O:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   28         :C:O:O:O:C:C:              60          :O:O:O:O:C:C:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   29         :C:O:O:O:C:O:              61          :O:O:O:O:C:O:           
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   30         :C:O:O:O:O:C:              62          :O:O:O:O:O:C:
 -------------:-:-:-:-:-:-:            --------------:-:-:-:-:-:-:
   31         :C:O:O:O:O:O:              63          :O:O:O:O:O:O:
 --------------------------            ---------------------------

  If this LAN is to terminate the cable, set S4-1 to OPEN.

  If this LAN is not to terminate the cable, set S4-1 to CLOSED.

  If this LAN is to supply cable bias, set S4-2 to OPEN.

  If this LAN is not to supply cable bias, set S4-2 to CLOSED.

  ______________________________L.E.D.s______________________________

  The LANC has four LEDs near the top front. They function as follows:

  DS1 (red, upper) indicates on board memory parity error.
  DS2 (amber) indicates on board memory time-out error.
  DS3 (red, lower) indicates the CPU has detected a parity error while
      accessing the LAN shared-memory array.
  DS4 (green) indicates sucessful completion of self-test.

  Pushbutton switch - SW5 is mounted between DS3 and DS4 and functions to
  reset DS1, DS2 and DS3.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB018 Pg003


FIB 00019                                                             01/26/89

                                *** MCS PCBA ***

The following information applies to these PCBA part numbers:

MM896000 - MCS (Memory & Communications Support) - 903374-001
MM896045 - MCS (Memory & Communications Support) - 903374-002

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set Switch 1, SW-1, at location 9R as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
 Positions 2 & 1...... - - - - - - O O ...1200 BAUD - Port T1 Remote Diagnostics
 Positions 2 & 1...... - - - - - - O C ...9600 BAUD - Port T1 Remote Diagnostics
 Positions 2 & 1...... - - - - - - C O ....300 BAUD - Port T1 Remote Diagnostics

 Position 3........... - - - - - O - - ...Enable 4-WAY ports
 Position 3........... - - - - - C - - ...Disable 4-WAY ports

 Position 4........... - - - - O - - - ...7X00 or 8X00 Systems
 Position 4........... - - - - C - - - ...9X00 Systems (See Note 1)

 Positions 7,6 & 5.... - X X X - - - - ...Not Used

 Position 8........... O - - - - - - - ...Memory Inhibit

__________________________________CABLES_______________________________________

There are four jacks used to connect serial devices to the four MCS ports. These
are labeled J10,J11,J12 and J13:

J10, the lowermost connector, connects to serial port 0.
J13, the uppermost connector, connects to serial port 3.

__________________________________NOTES________________________________________

1. In order for Position 4 to be active, and therefore to work on a 9X00 System
   with more than 12 MB of memory, the MCS PCBA must be:                     

                    P/N 903374-001 - at or above Revision T                  
                    P/N 903374-002 - at or above Revision V

   If any 4/8/16 Megabyte Memory PCBAs, P/N 903621-001, are installed in the
   CCA, MCS PCBA - P/N 903374-002 MUST be used and TERMINATOR PCBAs,
   P/N 903199-004, at or above Revision H, must be used.


                            (continued on next page)


2. The four SENSE SWITCHES on the front edge of this PCBA are numbered 0,1,2 and
HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB019 Pg001


   3, from bottom to top. These switches are in the OFF position when DOWN.

3. There is a RED LED located directly below Sense Switch 0. This LED indicates
   a Parity error in the 4-Way. The momentary switch at the top of the PCBA will
   reset this LED.

ORIGINATOR: H. Mitchell


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB019 Pg002


FIB 00020                                                             05/29/87

                      *** MDI PCBA (7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

 MM896010 - MDI (Memory Data Interface) - 903361-001 and 903408-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the CPU NUMBER Switch, SW-1, at location 1E as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
   CPU 0...............X X X X O O O C

   CPU 1...............X X X X O O C O

   CPU 2...............X X X X O C O O

___________________________________L.E.D.s______________________________________

There are four LEDs mounted at the top of this PCBA. Their functions are:

CR2 (amber, uppermost) indicates memory time-out.
CR3 (red) indicates a memory parity error.
CR4 (amber, lowermost) indicates a clock hang.
CR1 (green) indicates the CPU is on-line.

________________________ADDITIONAL SWITCHES_____________________________________

Beneath the Memory Parity LED - CR3, is located the Error Reset switch - SW3.

Beneath the CPU On-Line LED - CR1, is located a three-position toggle switch -
SW2. It functions as follows:

 UP - This CPU set OFFLINE.
 CENTER - This CPU set ONLINE.
 DOWN - This CPU set disabled for I/O.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB020 Pg001


FIB 00021                                                             09/14/88

                     *** MEMORY PCBAs, 1/2 MB and 1 MB ***                   

The following information applies to these PCBA part numbers:
MM891030 .5 MB (810 only)        MM891020 1.0 MB (810 only)
MM896100 .5 MB - 903349-007      MM896095 1.0 MB - 903349-005
                                 MM896090 1.0 MB - 903516-003 (see note)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the Memory Address Switch, SW-1, at location 10D to one of
the following options:

   HIGHEST              1/2 MB PCBA              1 MB PCBA
Memory Address        Switch Positions        Switch Positions
 on this PCBA           7 6 5 4 3 2 1           7 6 5 4 3 2 1
--------------------------------------------------------------               
    .5 Meg..............X O O O O O O
   1.0 Meg..............X O O O O C O...........X O O O O X X
   1.5 Meg..............X O O O C O O
   2.0 Meg..............X O O O C C O...........X O O O C X X
   2.5 Meg..............X O O C O O O
   3.0 Meg..............X O O C O C O...........X O O C O X X
   3.5 Meg..............X O O C C O O
   4.0 Meg..............X O O C C C O...........X O O C C X X
   4.5 Meg..............X O C O O O O
   5.0 Meg..............X O C O O C O...........X O C O O X X
   5.5 Meg..............X O C O C O O
   6.0 Meg..............X O C O C C O...........X O C O C X X
   6.5 Meg..............X O C C O O O                                        
   7.0 Meg..............X O C C O C O...........X O C C O X X
   7.5 Meg..............X O C C C O O
   8.0 Meg..............X O C C C C O...........X O C C C X X
   8.5 Meg..............X C O O O O O
   9.0 Meg..............X C O O O C O...........X C O O O X X
   9.5 Meg..............X C O O C O O
  10.0 Meg............. X C O O C C O...........X C O O C X X
  10.5 Meg..............X C O C O O O
  11.0 Meg..............X C O C O C O...........X C O C O X X
  11.5 Meg..............X C C O O O O
  12.0 Meg..............X C C O O C O...........X C O C C X X

_______Delay Line and Jumper Installation Information________
       This does not apply to P/N MM896090/903516-003.

   810 CPU:

   At location 6C, install delay line P/N 155002-004 - 250 ns
   At location 5C, install delay line P/N 155002-002 - 150 ns
   At location 3C, install jumper from Pin 1 to Pin 2

   7X00/8000/9X00 CPU:

   At location 6C, install delay line P/N 155002-003 - 200 ns
   At location 5C, install delay line P/N 155002-001 - 120 ns
   At location 3C, install jumper from Pin 2 to Pin 3
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB021 Pg001


___________________________________L.E.D.s______________________________________
 There are two LEDs at the top of these PCBAs. Their functions are:

  CR1 (red) indicates double or multibit errors.
  CR2 (amber) indicates single bit errors.

 Pushbutton switch - SW2, mounted under CR2, resets the error LEDs.

_____________________________________NOTES______________________________________

This Note applies to the 1.0 MB memory PCBA P/N MM896090 903516-003.

   1. Not to be used in a system with greater than 12 MB.
   2. Jumper JP5 and the IC pad at location 1A (if these are present) are
      jumpered as follows:

                      JP5 = 2 to 3      IC at 1A = 9 to 10


ORIGINATOR: H. Mitchell
            N. Jones                                                         


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB021 Pg002


FIB 00022                                                             10/22/87

                      *** MEMORY PCBAs, 2 MB and 4 MB ***

The following information applies to these PCBA part numbers:

                    MM896250 - 2 MB MEMORY PCBA - 903516-001                 
                    MM896260 - 4 MB MEMORY PCBA - 903516-002

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the Memory Address Switch, SW-1, at location 10D, to one the
following options:

   HIGHEST               2 MB PCBA               4 MB PCBA
Memory Address        Switch Positions        Switch Positione
 on this PCBA           7 6 5 4 3 2 1           7 6 5 4 3 2 1
--------------------------------------------------------------               
   2.0 Meg..............X O O O X O O
   4.0 Meg..............X O O C X O O...........X O O X X O O
   6.0 Meg..............X O C O X O O
   8.0 Meg..............X O C C X O O...........X O C X X O O
  10.0 Meg..............X C O O X O O
  12.0 Meg..............X C O C X O O...........X C O X X O O
  14.0 Meg..............DO NOT USE!
  16.0 Meg..............DO NOT USE!
  18.0 Meg..............X O O O X O C
  20.0 Meg..............X O O C X O C...........X O O X X O C
  22.0 Meg..............X O C O X O C
  24.0 Meg..............X O C C X O C...........X O C X X O C
  26.0 Meg..............X C O O X O C                                        
  28.0 Meg..............X C O C X O C...........X C O X X O C
  30.0 Meg..............DO NOT USE!
  32.0 Meg..............DO NOT USE!
  34.0 Meg..............X O O O X C O
  36.0 Meg..............X O O C X C O...........X O O X X C O
  38.0 Meg..............X O C O X C O
  40.0 Meg..............X O C C X C O...........X O C X X C O
  42.0 Meg..............X C O O X C O
  44.0 Meg..............X C O C X C O...........X C O X X C O
  46.0 Meg..............DO NOT USE!
  48.0 Meg..............DO NOT USE!
  50.0 Meg..............X O O O X C C
  52.0 Meg..............X O O C X C C...........X O O X X C C
  54.0 Meg..............X O C O X C C
  56.0 Meg..............X O C C X C C...........X O C X X C C
  58.0 Meg..............X C O O X C C
  60.0 Meg..............X C O C X C C...........X C O X X C C
  62.0 Meg..............DO NOT USE!
  64.0 Meg..............DO NOT USE!


  S E E    N O T E S    O N    T H E    N E X T    P A G E ! ! !
  --------------------------------------------------------------             


                           (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB022 Pg001


___________________________________NOTES____________________________________

1. The 2 MB and 4 MB boards MUST be addressed on EVEN boundaries.

2. They MUST NOT be addressed as 1,3,5 etc.

3. When using these boards intermixed with other capacity Memory boards, to
   avoid addressing problems, address the HIGHEST capacity boards in the LOWEST
   addresses.

4. If the PCBA is to be installed in a 9xxx system with total main memory above
   12MB, the PCBA must be at or above Revision J.

5. On Revision J, jumper JP5 was added at location 1E and an IC jumper pad was
   added at location 1A. The proper settings are as follows:

   Systems with up to 12 MB:  JP5 = 2 to 3   IC at 1A = 9 to 10

   Systems with above 12 MB:  JP5 = 1 to 2   IC at 1A = 8 to 9

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB022 Pg002


FIB 00023                                                             02/22/88

                  *** MPC PCBA - 903500-001 (7xxx Systems) ***

 The following information applies to these part numbers:

                        MM894000 - MPC PCBA - 903500-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

 Set the Printer and Tape device type switch SW2 as follows:

                        SW2 Switch
 Tape Device            Positions
    Type                1       4                                            
 ---------------------------------
 1/4" Streamer          O       O    (this is the ONLY valid setting)


                     SW2 Switch Positions
 Printer Device      Printer 0 : Printer 1
       Type             :2:5:8 : 3:6:7:
 -----------------------:-:-:--:--:-:-:
 Model 4201 Matrix      :O:O:O : O:O:O:
 -----------------------:-:-:--:--:-:-:
 Model 4209 Band        :O:C:C : O:C:C:
 -----------------------:-:-:--:--:-:-:
 Model 4214 DMP         :C:O:O : C:O:O:
 --------------------------------------                                      


 Set the Disk Drive device type switches SW3 and SW4 as follows:

                      SW4 = Disk 0            SW4 = Disk 1
 Disk Drive         Switch Positions        Switch Positions
 Device Type            :1:3:5:7:               :2:4:6:8:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M65         :C:O:O:O:               :C:O:O:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M105        :C:O:C:O:               :C:O:C:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M140  126MB :O:O:C:O:               :O:O:C:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4513 M190  169MB :O:C:O:O:               :O:C:O:O:
---------------------------------------------------------


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB023 Pg001


                      SW3 = Disk 2            SW3 = Disk 3
 Disk Drive         Switch Positions        Switch Positions
 Device Type            :1:3:5:7:               :2:4:6:8:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M65         :O:C:O:O:               :O:C:O:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M105        :O:C:O:C:               :O:C:O:C:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M140        :O:O:O:C:               :O:O:O:C:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M160        :C:O:O:O:               :C:O:O:O:
---------------------------------------------------------

 There is no switch 5 - SW5 on the 903500-001 MPC PCBA.


 The following chart shows the settings of the Self-Test switch SW6:

 Switch                                 Normal
 Position          Use                  Setting                              
 ----------------------------------------------                              
    1           Reserved                OPEN
 ----------------------------------------------                              
    2           Unused                  OPEN                                 
 ----------------------------------------------                              
    3           Unused                  OPEN
 ----------------------------------------------                              
                ONLINE                  OPEN
    4    --------------------------------------
                OFFLINE,self-test       CLOSED
 ----------------------------------------------                              
    5           Unused                  OPEN
 ----------------------------------------------                              
    6           Unused                  OPEN
 ----------------------------------------------                              
    7           Unused                  OPEN
 ----------------------------------------------                              
    8           Unused                  OPEN
 ----------------------------------------------                              

 _____________________________JUMPERS______________________________

 There are three jumpers on this PCBA. Set them as follows:

                              JMP1 - jumper 1 to 2
                              JMP2 - jumper 2 to 3
                              JMP3 - removed

______________________________L.E.D.s______________________________

There are three LEDs near the top-front of this PCBA. Their functions are:

DS1 (red, upper) indicates a tape buffer parity error.
DS2 (red, lower) indicates a disk buffer parity error.
DS3 (green) indicates successful completion of self-test.

Pushbutton switch - SW1 is mounted between DS2 and DS3 and is used to reset
the error LEDs, DS1 and DS2.

ORIGINATOR: H. Mitchell


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB023 Pg002


FIB 00024                  MAI COMPANY CONFIDENTIAL                   10/05/92

                  *** MPC PCBA - 903546-001 (7xxx Systems) ***

 The following information applies to these part numbers:

                        MM894000 - MPC PCBA - 903546-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

 Set the Printer and Tape device type switch SW2 as follows:

                        SW2 Switch
 Tape Device            Positions
    Type                1       2
 ---------------------------------
 1/4" Streamer          O       O    (this is the ONLY valid setting)


                     SW2 Switch Positions
 Printer Device      Printer 0 : Printer 1
       Type             :3:4:5 : 6:7:8:
 -----------------------:-:-:--:--:-:-:
 Model 4201 Matrix      :O:O:O : O:O:O:
 -----------------------:-:-:--:--:-:-:
 Model 4209 Band        :C:O:O : C:O:O:
 -----------------------:-:-:--:--:-:-:
 Model 4214 DMP         :O:C:O : O:C:O:
 --------------------------------------
 Set the Disk Drive device type switches SW3 and SW4 as follows:

                      SW3 = Disk 0            SW3 = Disk 1
                      SW4 = Disk 2            SW4 = Disk 3
 Disk Drive         Switch Positions        Switch Positions
 Device Type            :1:2:3:4:               :5:6:7:8:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M65         :C:O:O:O:               :C:O:O:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M105        :C:C:O:O:               :C:C:O:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4509 M140  126MB :O:C:O:O:               :O:C:O:O:
 -----------------------:-:-:-:-:---------------:-:-:-:-:                    
 Model 4513 M160  169MB :C:C:C:O:               :C:C:C:O:
--------------------------------------------------------
  Set the Printer Data Strobe switch - SW5 as follows:

                    Printer 0           Printer 1
  Printer type        SW5-1               SW5-2
  -----------------------------------------------
  Model 4201 Matrix   OPEN                OPEN
  -----------------------------------------------
  Model 4209 Band     CLOSED              CLOSED
  -----------------------------------------------
  Model 4214 DMP      OPEN                OPEN

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB024 Pg001


  SW5 positions 3 through 8 are unused, set them to OPEN.

 The following chart shows the settings of the Self-Test switch SW6:

 Switch                                 Normal
 Position          Use                  Setting                              
 ----------------------------------------------                              
                ONLINE                  OPEN
    1   ---------------------------------------
                OFFLINE, self-test     CLOSED
 ----------------------------------------------                              
    2           Unused                  OPEN                                 
 ----------------------------------------------                              
    3           Unused                  OPEN
 ----------------------------------------------                              
    4           Reserved                OPEN
 ----------------------------------------------                              
    5           Unused                  OPEN
 ----------------------------------------------                              
    6           Unused                  OPEN
 ----------------------------------------------                              
    7           Unused                  OPEN
 ----------------------------------------------                              
    8           Unused                  OPEN
 ----------------------------------------------
 _____________________________JUMPERS______________________________

 There are three jumpers on this PCBA. Set them as follows:

                              JMP1 - jumper 1 to 2
                              JMP2 - jumper 2 to 3
                              JMP3 - removed

______________________________L.E.D.s______________________________

There are three LEDs near the top-front of this PCBA. Their functions are:

DS1 (red, upper) indicates a tape buffer parity error.
DS2 (red, lower) indicates a disk buffer parity error.
DS3 (green) indicates successful completion of self-test.

Pushbutton switch - SW1 is mounted between DS2 and DS3 and is used to reset
the error LEDs, DS1 and DS2.

ORIGINATOR: H. Mitchell and J.O'Brien


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB024 Pg002


FIB 00025                                                             02/22/88


            *** NIMLC PCBA - 903381-001 (810/7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

               MM896030 - NIMLC - 903381-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The SUBTYPE Switch, SW-1, at location 2M, must be set as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
                       O O O O O C C C                                       

The BOARD (ISDC) ADDRESS Switch, SW-3, at location 1A, options are as follows:

Bd.       Sw. Pos.           Bd.       Sw. Pos.           Bd.       Sw. Pos.
No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1
---------------------        ---------------------        ---------------------
63....X C C C C O C C        41....X C O O C C O C        19....X C C O O O O C
62....X O C C C O C C        40....X O O O C C O C        18....X O C O O O O C
61....X C O C C O C C        39....X C C C O C O C        17....X C O O O O O C
60....X O O C C O C C        38....X O C C O C O C        16....X O O O O O O C
59....X C C O C O C C        37....X C O C O C O C        15....X C C C C C C O
58....X O C O C O C C        36....X O O C O C O C        14....X O C C C C C O.
57....X C O O C O C C        35....X C C O O C O C        13....X C O C C C C O
56....X O O O C O C C        34....X O C O O C O C        12....X O O C C C C O
55....X C C C O O C C        33....X C O O O C O C        11....X C C O C C C O
54....X O C C O O C C        32....X O O O O C O C        10....X O C O C C C O
53....X C O C O O C C        31....X C C C C O O C         9....X C O O C C C O
52....X O O C O O C C        30....X O C C C O O C         8....X O O O C C C O
51....X C C O O O C C        29....X C O C C O O C         7....X C C C O C C O
50....X O C O O O C C        28....X O O C C O O C         6....X O C C O C C O
49....X C O O O O C C        27....X C C O C O O C         5....X C O C O C C O
48....X O O O O O C C        26....X O C O C O O C         4....X O O C O C C O
47....X C C C C C O C        25....X C O O C O O C         3....X C C O O C C O
46....X O C C C C O C        24....X O O O C O O C         2....X O C O O C C O
45....X C O C C C O C        23....X C C C O O O C         1....X C O O O C C O
44....X O O C C C O C        22....X O C C O O O C         0.......NOT USED....
43....X C C O C C O C        21....X C O C O O O C
42....X O C O C C O C        20....X O O C O O O C

The PORT A Switch, SW-4, at location 8R can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............C O O O O O O O
  RS423 or RS449...........O C O O O O O O
  ICOM - DATAWORD..........O O C C C C C C


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB025 Pg001


The PORT B Switch, SW-5, at location 8F can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............C O O O O O O O
  RS423 or RS449...........O C O O O O O O
  ICOM - DATAWORD..........O O C C C C C C

The rocker switch SW-6, at location 5L, selects memory cycle times of 200 or 160
nanoseconds. The 160 nanosecond setting is used on all MPx 7XXX,8XXX,9XXX
systems. The 200 nanosecond setting is used only on the 810 systems.

____________________________________JUMPERS____________________________________

The JMP positions must be plugged to the appropriate positions according to the
desired operating mode. The JMPs are located in Row 10 of the NIMLC PCBA. Use
the following chart to plug the JMPs:

                                PORT A
  :---------------------------------------------------------------------:
  : JMP : JMP : JMP : JMP :             JMP              :  OPERATING   :
  :  D  :  E  :  G  :  H  :              F               :     MODE     :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : 1-2 : 1-2,3-4,7-8,9-10,11-12,13-14 : RS232 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : --- : 1-2,5-6,7-8,9-10,11-12,13-14 : RS423 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 2-3 : 2-3 : 2-3 :  -  :              -               : RS422 - ICOM :
  :---------------------------------------------------------------------:

                                PORT B
  :---------------------------------------------------------------------:
  : JMP : JMP : JMP : JMP :             JMP              :  OPERATING   :
  :  J  :  K  :  M  :  N  :              L               :     MODE     :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : 1-2 : 1-2,3-4,7-8,9-10,11-12,13-14 : RS232 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : --- : 1-2,5-6,7-8,9-10,11-12,13-14 : RS423 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 2-3 : 2-3 : 2-3 :  -  :              -               : RS422 - ICOM :
  :---------------------------------------------------------------------:

JMP C may be installed for endless self-test.

___________________________________L.E.D.s______________________________________

There are two LEDs near the top of the NIMLC PCBA. They function as follows:

 CR2 (red) indicates a NIMLC Memory parity error.
 CR4 (green) indicates successful completion of self-test.

Below the two LEDs is a momentary switch which resets the red LED.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB025 Pg002


_____________________________________NOTES______________________________________
 1. The addresses shown in the above table DO NOT apply to the 9X00 Systems.

 2. This IMLC PCBA - P/N 903381-001 MUST be installed to the RIGHT of the
    CPU PCBAs. If it becomes necessary to install the IMLC to the left of
    the CPU PCBAs, IMLC PCBA - P/N 903534-001 must be used.
ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB025 Pg003


FIB 00026                                                              03/29/89

                 *** NIMLC PCBA - 903381-001 (9xxx System) ***

The following information applies to this PCBA part number:

               MM896031 - NIMLC - 903381-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The SUBTYPE Switch, SW-1, at location 2M, must be set as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
                       X X X X O C C C                                       

The BOARD (ISDC) ADDRESS Switch, SW-3, at location 1A, options are as follows:

Bd.       Sw. Pos.           Bd.       Sw. Pos.           Bd.       Sw. Pos.
No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1
---------------------        ---------------------        ---------------------
63....X C C C C O C O        41....X C O O C C O O        19....not used
62....X O C C C O C O        40....X O O O C C O O        18....not used
61....X C O C C O C O        39....X C C C O C O O        17....not used
60....X O O C C O C O        38....X O C C O C O O        16....not used
59....X C C O C O C O        37....X C O C O C O O        15....X C C C C C C O
58....X O C O C O C O        36....X O O C O C O O        14....X O C C C C C O.
57....X C O O C O C O        35....X C C O O C O O        13....X C O C C C C O
56....X O O O C O C O        34....X O C O O C O O        12....X O O C C C C O
55....X C C C O O C O        33....X C O O O C O O        11....X C C O C C C O
54....X O C C O O C O        32....X O O O O C O O        10....X O C O C C C O
53....X C O C O O C O        31....not used                9....X C O O C C C O
52....X O O C O O C O        30....not used                8....X O O O C C C O
51....X C C O O O C O        29....not used                7....X C C C O C C O
50....X O C O O O C O        28....not used                6....X O C C O C C O
49....X C O O O O C O        27....not used                5....X C O C O C C O
48....X O O O O O C O        26....not used                4....X O O C O C C O
47....X C C C C C O O        25....not used                3....X C C O O C C O
46....X O C C C C O O        24....not used                2....X O C O O C C O
45....X C O C C C O O        23....not used                1....X C O O O C C O
44....X O O C C C O O        22....not used                0....not used
43....X C C O C C O O        21....not used
42....X O C O C C O O        20....not used

The PORT A Switch, SW-4, at location 8R can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............C O O O O O O O
  RS423 or RS449...........O C O O O O O O
  ICOM - DATAWORD..........O O C C C C C C


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB026 Pg001


The PORT B Switch, SW-5, at location 8F can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............C O O O O O O O
  RS423 or RS449...........O C O O O O O O
  ICOM - DATAWORD..........O O C C C C C C

The rocker switch SW-6, at location 5L, selects memory cycle times of 200 or 160
nanoseconds. The 160 nanosecond setting is used on all MPx 7XXX,8XXX,9XXX
systems. The 200 nanosecond setting is used only on the 810 systems.

____________________________________JUMPERS_____________________________________

The JMP positions must be plugged to the appropriate positions according to the
desired operating mode. The JMPs are located in Row 10 of the NIMLC PCBA. Use
the following chart to plug the JMPs:

                                PORT A
  :---------------------------------------------------------------------:
  : JMP : JMP : JMP : JMP :             JMP              :  OPERATING   :
  :  D  :  E  :  G  :  H  :              F               :     MODE     :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : 1-2 : 1-2,3-4,7-8,9-10,11-12,13-14 : RS232 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : --- : 1-2,5-6,7-8,9-10,11-12,13-14 : RS423 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 2-3 : 2-3 : 2-3 :  -  :              -               : RS422 - ICOM :
  :---------------------------------------------------------------------:

                                PORT B
  :---------------------------------------------------------------------:
  : JMP : JMP : JMP : JMP :             JMP              :  OPERATING   :
  :  J  :  K  :  M  :  N  :              L               :     MODE     :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : 1-2 : 1-2,3-4,7-8,9-10,11-12,13-14 : RS232 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 1-2 : 1-2 : 1-2 : --- : 1-2,5-6,7-8,9-10,11-12,13-14 : RS423 - XCOM :
  :-----:-----:-----:-----:------------------------------:--------------:    
  : 2-3 : 2-3 : 2-3 :  -  :              -               : RS422 - ICOM :
  :---------------------------------------------------------------------:

For normal on-line operation JMPC must be installed.
If endless self test is desired, the sense switches must be set to the up (on)
position.

___________________________________L.E.D.s______________________________________

There are two LEDs near the top of the NIMLC PCBA. They function as follows:

 CR2 (red) indicates a NIMLC Memory parity error.
 CR4 (green) indicates successful completion of self-test.

Below the two LEDs is a momentary switch which resets the red LED.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB026 Pg002


_____________________________________NOTES______________________________________
 1. The addresses shown in the above table apply ONLY to the 9X00 Systems.

 2. This IMLC PCBA - P/N 903381-001 MUST be installed to the RIGHT of the
    CPU PCBAs. If it becomes necessary to install the IMLC to the left of
    the CPU PCBAs, IMLC PCBA - P/N 903534-001 must be used.

ORIGINATOR: H. Mitchell/N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB026 Pg003


FIB 00027                                                             06/23/88

            *** NIMLC PCBA - 903534-001 (810/7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

               MM896030 - NIMLC - 903534-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The SUBTYPE Switch, SW-1, at location 2M, must be set as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
                       X X X X O C C C                                       

The BOARD (ISDC) ADDRESS Switch, SW-3, at location 2J, options are as
follows:

Bd.       Sw. Pos.           Bd.       Sw. Pos.           Bd.       Sw. Pos.
No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1
---------------------        ---------------------        ---------------------
63....X C C C C O C C        41....X C O O C C O C        19....X C C O O O O C
62....X O C C C O C C        40....X O O O C C O C        18....X O C O O O O C
61....X C O C C O C C        39....X C C C O C O C        17....X C O O O O O C
60....X O O C C O C C        38....X O C C O C O C        16....X O O O O O O C
59....X C C O C O C C        37....X C O C O C O C        15....X C C C C C C O
58....X O C O C O C C        36....X O O C O C O C        14....X O C C C C C O.
57....X C O O C O C C        35....X C C O O C O C        13....X C O C C C C O
56....X O O O C O C C        34....X O C O O C O C        12....X O O C C C C O
55....X C C C O O C C        33....X C O O O C O C        11....X C C O C C C O
54....X O C C O O C C        32....X O O O O C O C        10....X O C O C C C O
53....X C O C O O C C        31....X C C C C O O C         9....X C O O C C C O
52....X O O C O O C C        30....X O C C C O O C         8....X O O O C C C O
51....X C C O O O C C        29....X C O C C O O C         7....X C C C O C C O
50....X O C O O O C C        28....X O O C C O O C         6....X O C C O C C O
49....X C O O O O C C        27....X C C O C O O C         5....X C O C O C C O
48....X O O O O O C C        26....X O C O C O O C         4....X O O C O C C O
47....X C C C C C O C        25....X C O O C O O C         3....X C C O O C C O
46....X O C C C C O C        24....X O O O C O O C         2....X O C O O C C O
45....X C O C C C O C        23....X C C C O O O C         1....X C O O O C C O
44....X O O C C C O C        22....X O C C O O O C         0.......NOT USED....
43....X C C O C C O C        21....X C O C O O O C
42....X O C O C C O C        20....X O O C O O O C

The PORT A Switch, SW-4, at location 8U, can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............O O O O O O O O
  ICOM - DATAWORD..........C O C C C C C C
  X.21.....................C C O O O O O O


                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB027 Pg001


The PORT B Switch, SW-5, at location 7U, can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............O O O O O O O O
  ICOM - DATAWORD..........C O C C C C C C
  X.21.....................C C O O O O O O

The CPU TYPE switch, SW-6, at location 4C, can be set for the following options:

  The PCBA is etched 160 and 200:

                             Switch  Positions
   CPU TYPE                       4 3 2 1
   --------                       -------
     810.......Set all four switches to the '200' position (end nearest 4B down)
     MPx.......Set all four switches to the '160' position (end nearest 4D down)

The PORT A switch, SW-7, at location 9U, can be set for the following options:

                          Switch  Positions
      Option                   4 3 2 1
  --------------               -------
  XCOM - RS232.................C C C C   NOTE: CLOSED = toward the X stamped on
  ICOM - DATAWORD..............O O O O                  the PCBA
  X.21.........................C C C C         OPEN   = toward the I

The PORT B switch, SW-8, at location 9L can be set for the following options:

                          Switch  Positions
      Option                   4 3 2 1
  --------------               -------
  XCOM - RS232.................C C C C   NOTE: CLOSED = toward the X stamped on
  ICOM - DATAWORD..............O O O O                  the PCBA
  X.21.........................C C C C         OPEN   = toward the I

____________________________________JUMPERS_____________________________________

JMP C near location 3N may be installed for endless self-test.

___________________________________L.E.D.s______________________________________

There are two LEDs near the top of the NIMLC PCBA. They function as follows:

 CR2 (red) indicates a NIMLC Memory parity error.
 CR4 (green) indicates successful completion of self-test.

Below the two LEDs is a momentary switch which resets the red LED.

_____________________________________NOTES______________________________________

 1. The addresses shown in the above table DO NOT apply to the 9X00 Systems.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB027 Pg002


FIB 00028                                                             03/29/89

            *** NIMLC PCBA - 903534-001 (9xxx and ASxx Systems) ***

The following information applies to this PCBA part number:

               MM896030 - NIMLC - 903534-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The SUBTYPE Switch, SW-1, at location 2M, must be set as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
                       X X X X O C C C                                       

The BOARD (ISDC) ADDRESS Switch, SW-3, at location 2J, options are as follows:

Bd.       Sw. Pos.           Bd.       Sw. Pos.           Bd.       Sw. Pos.
No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1        No.   8 7 6 5 4 3 2 1
---------------------        ---------------------        ---------------------
63....X C C C C O C O        41....X C O O C C O O        19....not used
62....X O C C C O C O        40....X O O O C C O O        18....not used
61....X C O C C O C O        39....X C C C O C O O        17....not used
60....X O O C C O C O        38....X O C C O C O O        16....not used
59....X C C O C O C O        37....X C O C O C O O        15....X C C C C C C O
58....X O C O C O C O        36....X O O C O C O O        14....X O C C C C C O.
57....X C O O C O C O        35....X C C O O C O O        13....X C O C C C C O
56....X O O O C O C O        34....X O C O O C O O        12....X O O C C C C O
55....X C C C O O C O        33....X C O O O C O O        11....X C C O C C C O
54....X O C C O O C O        32....X O O O O C O O        10....X O C O C C C O
53....X C O C O O C O        31....not used                9....X C O O C C C O
52....X O O C O O C O        30....not used                8....X O O O C C C O
51....X C C O O O C O        29....not used                7....X C C C O C C O
50....X O C O O O C O        28....not used                6....X O C C O C C O
49....X C O O O O C O        27....not used                5....X C O C O C C O
48....X O O O O O C O        26....not used                4....X O O C O C C O
47....X C C C C C O O        25....not used                3....X C C O O C C O
46....X O C C C C O O        24....not used                2....X O C O O C C O
45....X C O C C C O O        23....not used                1....X C O O O C C O
44....X O O C C C O O        22....not used                0....not used
43....X C C O C C O O        21....not used
42....X O C O C C O O        20....not used

The PORT A Switch, SW-4, at location 8U, can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............O O O O O O O O
  ICOM - DATAWORD..........C O C C C C C C
  X.21.....................C C O O O O O O


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB028 Pg001


The PORT B Switch, SW-5, at location 7U, can be set for the following options:

                          Switch  Positions
      Option               8 7 6 5 4 3 2 1
  --------------           ---------------
  XCOM - RS232.............O O O O O O O O
  ICOM - DATAWORD..........C O C C C C C C
  X.21.....................C C O O O O O O


The CPU TYPE switch, SW-6, at location 4C, can be set for the following options:
  The PCBA is etched 160 and 200:

                             Switch  Positions
   CPU TYPE                       4 3 2 1
   --------                       -------
    810........Set all four switches to the '200' position (end nearest 4B down)
.   MPx & ASx..Set all four switches to the '160' position (end nearest 4D down)

The PORT A switch, SW-7, at location 9U, can be set for the following options:

                          Switch  Positions
      Option                   4 3 2 1
  --------------               -------
  XCOM - RS232.................C C C C  NOTE: CLOSED = toward the X stamped on
  ICOM - DATAWORD..............O O O O                 the PCBA
  X.21.........................C C C C        OPEN   = toward the I

The PORT B switch, SW-8, at location 9L can be set for the following options:

                          Switch  Positions
      Option                   4 3 2 1
  --------------               -------
  XCOM - RS232.................C C C C  NOTE: CLOSED = toward the X stamped on
  ICOM - DATAWORD..............O O O O                 the PCBA
  X.21.........................C C C C        OPEN   = toward the I

___________________________________L.E.D.s______________________________________

There are two LEDs near the top of the NIMLC PCBA. They function as follows:

 CR2 (red) indicates a NIMLC Memory parity error.
 CR4 (green) indicates successful completion of self-test.

Below the two LEDs is a momentary switch which resets the red LED.
____________________________________JUMPERS_____________________________________

JMP C near location 3N:

For normal on-line operation this jumper must be installed if in a 9xxx system,
must be removed if in an ASxx system.
If endless self test is desired, the sense switches must be set to the up (on)
position.

JMP G  16MHZ CLOCK  INSTALLED
_____________________________________NOTES______________________________________

 1. The addresses shown in the above table apply ONLY to the 9X00 & ASx Systems.

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB028 Pg002


ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB028 Pg003


FIB 00029                                                             05/02/88

                   *** N8WAY PCBA (810/7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

    MM896040 - N8WAY PCBA - 903383-001 (See Note 1, below)                   

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The SUBTYPE switch, SW-2, at location 1A, must be set as follows:

                       Switch  Positions
                         7 6 5 4 3 2 1
                         -------------
                         X X X X O O O

The BOARD (ISDC) ADDRESS Switch - SW-1, at location 3B, options are as follows:

Bd.      Sw. Pos.           Bd.      Sw. Pos.           Bd.      Sw. Pos.
No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1
--------------------        --------------------        -------------------- 
 0.....Not Used             22.....C O O O C C O        44.....C O C C C O O
 1.....O C C O O O C        23.....C O O O C C C        45.....C O C C C O C
 2.....O C C O O C O        24.....C O O C O O O        46.....C O C C C C O
 3.....O C C O O C C        25.....C O O C O O C        47.....C O C C C C C
 4.....O C C O C O O        26.....C O O C O C O        48.....C C O O O O O
 5.....O C C O C O C        27.....C O O C O C C        49.....C C O O O O C
 6.....O C C O C C O        28.....C O O C C O O        50.....C C O O O C O
 7.....O C C O C C C        29.....C O O C C O C        51.....C C O O O C C
 8.....O C C C O O O        30.....C O O C C C O        52.....C C O O C O O
 9.....O C C C O O C        31.....C O O C C C C        53.....C C O O C O C
10.....O C C C O C O        32.....C O C O O O O        54.....C C O O C C O
11.....O C C C O C C        33.....C O C O O O C        55.....C C O O C C C
12.....O C C C C O O        34.....C O C O O C O        56.....C C O C O O O
13.....O C C C C O C        35.....C O C O O C C        57.....C C O C O O C
14.....O C C C C C O        36.....C O C O C O O        58.....C C O C O C O
15.....O C C C C C C        37.....C O C O C O C        59.....C C O C O C C
16.....C O O O O O O        38.....C O C O C C O        60.....C C O C C O O
17.....C O O O O O C        39.....C O C O C C C        61.....C C O C C O C
18.....C O O O O C O        40.....C O C C O O O        62.....C C O C C C O
19.....C O O O O C C        41.....C O C C O O C        63.....C C O C C C C
20.....C O O O C O O        42.....C O C C O C O
21.....C O O O C O C        43.....C O C C O C C

____________________________________JUMPERS____________________________________

When used in Series 7xxx or 8xxx:

     JMPE (two jumper posts near location 2G) should be closed... Jumper must be
     in place.

     JMPF (three jumper posts near location 1N) should be jumpered 1 to 2.


                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB029 Pg001


When used in System 810:

     JMPE (two jumper posts near location 2G) should be open... NO jumper in
     place.

     JMPF (three jumper posts near location 1N) should be jumpered from 2 to 3.

____________________________________CABLES____________________________________ .

There are eight jacks on the 8-way used to connect serial devices to the ports:

J1, the uppermost jack, is the connector for the first 8-way port, 0.
J8, the lowermost jack, is the connector for the last 8-way port, 7.

The auto-dial connector, J9 is recessed from the outer PCBA edge, near the
J8 at the bottom of the PCBA.

____________________________________NOTES______________________________________

 1. The addresses shown in the above table DO NOT apply to the 9X00 Systems.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB029 Pg002


FIB 00030                                                             09/25/87

                       *** N8WAY PCBA (9xxx Systems) ***

The following information applies to this PCBA part number:

       MM896040 - N8WAY - 903383-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The DEVICE SUBTYPE switch, SW-2, at location 1A, must be set as follows:

                      Switch  Positions
                        7 6 5 4 3 2 1
                        -------------
                        X X X X O O O

The BOARD (ISDC) ADDRESS Switch - SW-1, at location 3B, options are as follows:

Bd.      Sw. Pos.           Bd.      Sw. Pos.           Bd.      Sw. Pos.
No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1
--------------------        --------------------        -------------------- 
 0.....Not Used             22.....Not Used             44.....O O C C C O O
 1.....O C C O O O C        23.....Not Used             45.....O O C C C O C
 2.....O C C O O C O        24.....Not Used             46.....O O C C C C O
 3.....O C C O O C C        25.....Not Used             47.....O O C C C C C
 4.....O C C O C O O        26.....Not Used             48.....O C O O O O O
 5.....O C C O C O C        27.....Not Used             49.....O C O O O O C
 6.....O C C O C C O        28.....Not Used             50.....O C O O O C O
 7.....O C C O C C C        29.....Not Used             51.....O C O O O C C
 8.....O C C C O O O        30.....Not Used             52.....O C O O C O O
 9.....O C C C O O C        31.....Not Used             53.....O C O O C O C
10.....O C C C O C O        32.....O O C O O O O        54.....O C O O C C O
11.....O C C C O C C        33.....O O C O O O C        55.....O C O O C C C
12.....O C C C C O O        34.....O O C O O C O        56.....O C O C O O O
13.....O C C C C O C        35.....O O C O O C C        57.....O C O C O O C
14.....O C C C C C O        36.....O O C O C O O        58.....O C O C O C O
15.....O C C C C C C        37.....O O C O C O C        59.....O C O C O C C
16.....Not Used             38.....O O C O C C O        60.....O C O C C O O
17.....Not Used             39.....O O C O C C C        61.....O C O C C O C
18.....Not Used             40.....O O C C O O O        62.....O C O C C C O
19.....Not Used             41.....O O C C O O C        63.....O C O C C C C
20.....Not Used             42.....O O C C O C O
21.....Not Used             43.....O O C C O C C

____________________________________JUMPERS____________________________________

    JUMP E (near location 2G) - Jumper from 1 to 2
    JUMP F (near location 1N) - Jumper from 1 to 2


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB030 Pg001


____________________________________CABLES____________________________________ .
There are eight jacks on the 8-way used to connect serial devices to the ports:

J1, the uppermost jack, is the connector for the first 8-way port, 0.
J8, the lowermost jack, is the connector for the last 8-way port, 7.

The auto-dial connector, J9 is recessed from the outer PCBA edge, near the
J8 at the bottom of the PCBA.

_____________________________________NOTES_____________________________________

 1. The addresses shown in the above table apply ONLY to the 9X00 Systems.
 2. Addresses 16 through 31 MUST NOT be used.
 3. Any addresses other than those shown above are invalid.

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB030 Pg002


FIB 00031                                                             07/17/90

                    *** N16WAY PCBA (7xxx/8xxx Systems) ***

The following information applies to this PCBA part number:

   MM896140 - N16WAY PCBA - 903437-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The DEVICE SUBTYPE switch, SW-1, at location 6N, must be set as follows:

                      Switch  Positions
                        7 6 5 4 3 2 1
                        -------------
                        C C C C C C C    (All positions closed)

The BOARD (ISDC) ADDRESS Switch, SW-2, at location 4K, must be set to assign
two ISDC addresses to each N16WAY. The setting options are as follows:

 Bd.      Sw. Pos.           Bd.      Sw. Pos.           Bd.      Sw. Pos.
 No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1
 --------------------       ---------------------       ---------------------
 2/3....O C C O O C X       24/25...C O O C O O X       46/47...C O C C C C X
 4/5....O C C O C O X       26/27...C O O C O C X       48/49...C C O O O O X
 6/7....O C C O C C X       28/29...C O O C C O X       50/51...C C O O O C X
 8/9....O C C C O O X       30/31...C O O C C C X       52/53...C C O O C O X
10/11...O C C C O C X       32/33...C O C O O O C       54/55...C C O O C C X
12/13...O C C C C O X       34/35...C O C O O C X       56/57...C C O C O O X
14/15...O C C C C C X       36/37...C O C O C O X       58/60...C C O C O C X
16/17...C O O O O O X       38/39...C O C O C C X       60/61...C C O C C O X
18/19...C O O O O C X       40/41...C O C C O O X       62/63...C C O C C C X
20/21...C O O O C O X       42/43...C O C C O C X                            
22/23...C O O O C C X       44/45...C O C C C O X

__________________________Other Switches and L.E.D.s____________________________

There are four LEDs on this board, two at the top and two at the bottom:

 1. A RED LED at the top indicates a parity error in the ODD half.
 2. A RED LED at the bottom indicates a parity error in the EVEN half.
 3. A GREEN LED at the top indicates self-test has passed in the ODD half.
 4. A GREEN LED at the bottom indicates self-test has passed in the EVEN half.

There is a momentary switch near the top which resets the RED LEDs.

_____________________________________CABLES____________________________________

There are four jacks used to connect the ports to the backpanel - J1,J2,J3 and
J4. The first four ports (0-3) are on the bottom jack - J1, The last four ports
(12-15) are on the top jack J4.                                              


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB031 Pg001


_____________________________________NOTES______________________________________
 1. The addresses shown in the above table apply only to 7xxx and 8xxx Systems.
 2. Any addresses other than those shown above are invalid.

ORIGINATOR: H. MITCHELL
MODIFIED BY: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB031 Pg002


FIB 00032                                                             07/17/90

             *** N16WAY PCBA (9xxx and Advanced Series Systems) ***

The following information applies to this PCBA part number:

      MM896140 - N16WAY - 903437-001 (See Note 1, below)

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

The DEVICE SUBTYPE switch, SW-1, at location 6N, must be set as follows:

                      Switch  Positions
                        7 6 5 4 3 2 1
                        -------------
                        C C C C C C C    (All positions closed)

The BOARD (ISDC) ADDRESS Switch, SW-2, at location 4K, must be set to assign
two ISDC addresses to each N16WAY. The setting options are as follows:

 Bd.      Sw. Pos.           Bd.      Sw. Pos.                               
 No.    7 6 5 4 3 2 1        No.    7 6 5 4 3 2 1                            
---------------------       ---------------------                            
 2/3....O C C O O C X       40/41...O O C C O O X
 4/5....O C C O C O X       42/43...O O C C O C X
 6/7....O C C O C C X       44/45...O O C C C O X
 8/9....O C C C O O X       46/47...O O C C C C X
10/11...O C C C O C X       48/49...O C O O O O X
12/13...O C C C C O X       50/51...O C O O O C X                            
14/15...O C C C C C X       52/53...O C O O C O X
Do Not use 16 thru 31       54/55...O C O O C C X
32/33...O O C O O O X       56/57...O C O C O O X
34/35...O O C O O C X       58/59...O C O C O C X
36/37...O O C O C O X       60/61...O C O C C O X
38/39...O O C O C C X       62/63...O C O C C C X


__________________________Other Switches and L.E.D.s____________________________
There are four LEDs on this board, two at the top and two at the bottom:

 1. A RED LED at the top indicates a parity error in the ODD half.
 2. A RED LED at the bottom indicates a parity error in the EVEN half.
 3. A GREEN LED at the top indicates self-test has passed in the ODD half.
 4. A GREEN LED at the bottom indicates self-test has passed in the EVEN half.

There is a momentary switch near the top which resets the RED LEDs.

_____________________________________CABLES____________________________________

There are four jacks used to connect the ports to the backpanel - J1,J2,J3 and
J4. The first four ports (0-3) are on the bottom jack - J1, The last four ports
(12-15) are on the top jack J4.                                              

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB032 Pg001


_____________________________________NOTES______________________________________
 1. The addresses shown in the above table apply ONLY to 9X00 and Advanced
    Series Systems.
 2. Any addresses other than those shown above are invalid.

ORIGINATOR: H. MITCHELL
MODIFIED BY: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB032 Pg002


FIB 00033                                                             08/16/91

                          *** SMDI and SMDII PCBAs ***

 The following information applies to these PCBA part numbers:

                       MM560000 - SMDI PCBA - 903531-001
                       MM294001 - SMDI PCBA - 903591-001
                       MM894075 - SMDII PCBA - 903633-001

 There are no dip switches to be set on these PCBAs.

 There is one LED on this PCBA, near the top. It indicates that power is on.

ADDRESSING:

 On the SMDI PCBAs (903531-001 & 903591-001), there is no drive address select
jumpering. Each SMDI will accept two drives. The drive whose radial cable
connects to SMDI connector J6 must have its address set for drive 0 (or 2) and
the drive whose radial cable connects to SMDI connector J5 must have its address
set for
drive 1 (or 3).

 On the SMDII PCBA (903663-001), jumper JP1, located between the chips at
locations 5E and 5F, is used to select the addresses which the DMA will be
presenting to the SMDII. The silkscreen on the PCBA shows how to jumper and
depends whether the drives connected to the SMDII are 0 and 1 or 2 and 3
(controller relative rather than system relative, the first two drives on a
controller will always be 0 & 1 even if they are drives 6 & 7 to the system).
Both drives attached to the SMDII must have their addresses set to drive 0.

TIME DELAY:

 On the SMDI PCBAs (903531-001 & 903591-001), near the Power-On LED, is located
a Time Delay jumper block. This jumper selects the time delay for the PFD IN -
to - PFD OUT signal used in the sequencing of "run power" to each 8" drive. The
jumper may be placed in any one of the eight positions to delay the PFD OUT
signal from 10 to 80 seconds. The time delays provided by each jumper position
are as follows:

                               JUMPER       DELAY
                              POSITION    (SECONDS)
                              --------    ---------
                                 0           10
                                 1           20
                                 2           30
                                 3           40
                                 4           50
                                 5           60
                                 6           70
                                 7           80

Installation in position 0 is satisfactory for the MPx Systems.

 On the SMDII PCBA (903633-001), near the bottom and between the Radial cable
connectors, are located JP2 and JP3. These jumpers function the same as the
jumper block mentioned in the above SMDI paragraph, except that there is a
separate jumper for the two drives attached to the SMDII; JP3 controls drive 0
and JP2 controls drive 1. The time delay is marked on the PCBA under the jumper
blocks. The selections are 0, 30 and 60 seconds.


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB033 Pg001


Jumpering for 0 seconds is satisfactory for MPx Systems.

NOTE: If the jumper(s) are left out of these PCBAs, the disk drive(s) will
      not power down with the system.


TERMINATION:

 The SMD interface PCBA is terminated by three (3) sip resistor networks, which
are socketed for easy removal and replacement (near J1). If no other drives or
SMDs are connected to the SMD PCBA BUS OUT connector - J2, then the
terminators must be installed.

   Terminator SIP pack orientation is as follows:

     SMDI PCBA  - pin 1 (identified by a black dot) faces pin 50 (left) of the
                  50 pin bus cable in connector J1. When correctly oriented, the
                  black dot on all three resistor packs (SIPs) will be towards
                  pin 50 (left) of the bus cable.

     SMDII PCBA - pin 1 (identified by a black dot) faces pin 1 (right) of the
                  50 pin bus cable in connector J1. When correctly oriented, the
                  black dot on all three resistor packs (SIPs) will be towards
                  pin 1 (right) of the bus cable.

     There may have been a few SMDII PCBAs revision "X1" shipped in the MPx 9100
     Beta units. The correct terminator pack orientation on these PCBAs will be
     the same as the SMDI PCBAs.

 The SMDI has a daisy chained bus cable. The last drive attached to the SMDI
must have a bus terminator installed.

 The SMDII has a separate bus cable connecting to each drive attached. All
drives attached to the SMDII must have a bus terminator attached.

NOTE:

 The SMDII can be used to replace an SMDI (and vice-versa) if the additional bus
cable/terminators are available. However, the SMDII is required in the 71XX
systems.

ORIGINATOR: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB033 Pg002


FIB 00034                                                             08/03/87


                      *** TDP PCBA (7xxx/8xxx Systems) ***

The following information applies to these PCBA part numbers:

        MM890090 - TDP - 903217-001 or 903453-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the switches as required as shown below:

  Switch              Switch  Positions
 Location              8 7 6 5 4 3 2 1           Conditions
 --------              ---------------          -------------                
    1B.................O O O C O C C O..........UNCONDITIONAL

    1D.................O O C C O O C O..........UNCONDITIONAL

    4B.................C O O O O O O O..........UNCONDITIONAL

    4C.................C C O X O O O O..........BAND PRINTER INSTALLED
    4C.................O C C X O O O O..........MATRIX PRINTER INSTALLED
    4C.................O O C X O O O O..........DMP PRINTER INSTALLED

    2Z...... 8 & 4.....C - - - C - - -..........REEL-REEL TAPE INSTALLED
    2Z...... 8 & 4.....C - - - O - - -..........STREAMER TAPE INSTALLED

    2Z...... 7,6 & 5   - C C O - - - -..........DISK 1 = P66
    2Z...... 7,6 & 5   - C O C - - - -..........DISK 1 = T83
    2Z...... 7,6 & 5   - C O O - - - -..........DISK 1 = P154
    2Z...... 7,6 & 5   - O C C - - - -..........DISK 1 = T303
    2Z...... 7,6 & 5   - C C C - - - -..........DISK 1 = P314

    2Z...... 3,2 & 1   - - - - - C C O..........DISK 0 = P66
    2Z...... 3,2 & 1   - - - - - C O C..........DISK 0 = T83
    2Z...... 3,2 & 1   - - - - - C O O..........DISK 0 = P154
    2Z...... 3,2, & 1  - - - - - O C C..........DISK 0 = T303
    2Z...... 3,2, & 1  - - - - - C C C..........DISK 0 = P314

ORIGINATOR: H. MITCHELL


.X


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB034 Pg001


FIB 00035                                                             05/29/87

                               *** VCON PCBA ***

The following information applies to this PCBA part number:

                          MM896050 - VCON - 903377-001

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

....................CONFIGURATION SWITCH......................

        Switch        Switch  Positions
       Location        8 7 6 5 4 3 2 1          Conditions
       --------        ---------------          ----------
          8V...........O O O C O O C C..........UNCONDITIONAL

.........BOARD ADDRESS SWITCH on 7000/7100/8000 Systems.......

       Switch        Switch  Positions
       Location        8 7 6 5 4 3 2 1          Conditions
       --------        ---------------          ----------
          2C...........X X O C C C C C..........VCON #0
          2C...........X X O C C C C O..........VCON #1
          2C...........X X O C C C O C..........VCON #2
          2C...........X X O C C C O O..........VCON #3
          2C...........X X O C C O C C..........VCON #4
          2C...........X X O C C O C O..........VCON #5
          2C...........X X O C C O O C..........VCON #6
          2C...........X X O C C O O O..........VCON #7
          2C...........X X O C O C C C..........VCON #8
          2C...........X X O C O C C O..........VCON #9
          2C...........X X O C O C O C..........VCON #10
          2C...........X X O C O C O O..........VCON #11
          2C...........X X O C O O C C..........VCON #12
          2C...........X X O C O O C O..........VCON #13
          2C...........X X O C O O O C..........VCON #14
          2C...........X X O C O O O O..........VCON #15
          2C...........X X O O C C C C..........VCON #16
          2C...........X X O O C C C O..........VCON #17
          2C...........X X O O C C O C..........VCON #18
          2C...........X X O O C C O O..........VCON #19
          2C...........X X O O C O C C..........VCON #20
          2C...........X X O O C O C O..........VCON #21
          2C...........X X O O C O O C..........VCON #22
          2C...........X X O O C O O O..........VCON #23
          2C...........X X O O O C C C..........VCON #24
          2C...........X X O O O C C O..........VCON #25
          2C...........X X O O O C O C..........VCON #26
          2C...........X X O O O C O O..........VCON #27
          2C...........X X O O O O C C..........VCON #28
          2C...........X X O O O O C O..........VCON #29
          2C...........X X O O O O O C..........VCON #30


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB035 Pg001


.........BOARD ADDRESS SWITCH on 9000/9100/9500 Systems.........

         Switch        Switch  Positions
       Location        8 7 6 5 4 3 2 1          Conditions
       --------        ---------------          ----------
          2C...........X X X O C C C C..........VCON #0
          2C...........X X X O C C C O..........VCON #1
          2C...........X X X O C C O C..........VCON #2
          2C...........X X X O C C O O..........VCON #3
          2C...........X X X O C O C C..........VCON #4
          2C...........X X X O C O C O..........VCON #5
          2C...........X X X O C O O C..........VCON #6
          2C...........X X X O C O O O..........VCON #7
          2C...........X X X O O C C C..........VCON #8
          2C...........X X X O O C C O..........VCON #9
          2C...........X X X O O C O C..........VCON #10
          2C...........X X X O O C O O..........VCON #11
          2C...........X X X O O O C C..........VCON #12
          2C...........X X X O O O C O..........VCON #13
          2C...........X X X O O O O C..........VCON #14

          Do not address VCON boards above 14 on 9X00 Systems

____________________________________JUMPERS____________________________________

          JUMPERS                  810 Systems              MPx Systems      
 -------------------------      ------------------       ------------------
 JUMP 8 (near location 2C)      Jumper from 1 to 2       Jumper from 2 to 3
                                     (200 NS)                 (160 NS)

___________________________________CABLES______________________________________

The video cables connect to the four jacks - J0,J1,J2 AND J3:

 J0 is the bottom jack and connects to the first HSVDT of the VCON (T0).
 J3 is the top jack and connects to the last HSVDT of the VCON (T3).

ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB035 Pg002


FIB 00036                                                             05/29/87

                         *** WCS PCBA (810 Systems) ***

The following information applies to this PCBA part number:

             MM890040 - 8K WCS - 903247-004

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

Set the Computer Engine No. Switch, SW-1,at location 1C to one of
the following options:

                      Switch  Positions
Computer Engine        8 7 6 5 4 3 2 1
---------------        ---------------                                       
       0               X O O O O C O O

       1               X O O O O C O C

       2               X O O O O C C O


ORIGINATOR: H. MITCHELL


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB036 Pg001


FIB 00037                                                             06/01/88

                 *** Memory Time-out & Parity Dump Analysis ***

 Memory dumps may be reported in several ways depending on OS level and the
error being detected. Some of the different Four-tuples are:

  MEMORY PARITY ERRORS                 MEMORY TIME-OUT ERRORS
  ____________________                 ______________________                
   1,0,xxx,6                            1,0,xxx,5
   1,64,xxx,6                           1,64,xxx,5
   1,128,xxx,6                          1,128,xxx,5
   1,255,xxx,6                          1,255,xxx,5
   28,106,1,xxx                         28,105,1,xxx

   1,255,255,6 - probable bad ESTK      1,255,255,5 - probable bad ESTK

 Whenever a Memory Time-out Error or a Memory Parity Error four-tuple occurs,
the value of X (contained within the four-tuple) may be used to determine which
system PCBA caused the dump.

 Since the memory maps are different between the 7XXX/8XXX and the 9XXX Systems,
separate charts for diagnosis are required.  Use the appropriate chart below to
determine which PCBA caused the dump.


                          *** 7XXX or 8XXX SYSTEMS ***

 The following are examples of how to use the chart:

 EXAMPLE #1:
  The system has dumped, producing a four-tuple of 1,0,76,6. In this case the
 four-tuple "X VALUE" is 76. Locate 76 in the "FOUR-TUPLE X VALUE" column. This
 number falls within the bracket for the second half megabyte of the 5th
 megabyte of main memory. The failing PCBA may be found by observing the address
 switch setting on the memory PCBAs, looking for Megabyte 5, second half.

 EXAMPLE #2:
  The system has dumped, producing a four-tuple of 1,0,199,5. In this case the .
 four-tuple "X VALUE" is 199. Locate 199 in the "FOURTUPLE X VALUE" column. The
 arrow to the right of 199 indicates that the ISDC that is addressed "08" caused
 this dump. Remember that 16ways and BMTCs have two ISDC addresses assigned.


FOUR-TUPLE                            FOUR-TUPLE                             
    X                                     X                                  
  VALUE  FAILING PCBA             <>    VALUE   FAILING PCBA
  -----  --------------------     <>    -----   --------------------
    0   \                         <>     128 --> unused
    1    \                        <>     129 --> unused
    2     \  1st half of          <>     130 --> unused
    3      > 1st Megabyte         <>     131 --> unused                      
    4     /  of Main Memory       <>     132 --> unused
    5    /                        <>     133 --> unused
    6   /                         <>     134 --> unused
    7 _/                          <>     135 --> unused


                           (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg001


FOUR-TUPLE                            FOUR-TUPLE                             
    X                                     X                                  
  VALUE  FAILING PCBA             <>    VALUE   FAILING PCBA
  -----  --------------------     <>    -----   --------------------
    8  \                          <>     136 --> unused
    9   \                         <>     137 --> unused
   10    \                        <>     138 --> unused
   11     \  2nd half of          <>     139 --> unused
   12      > 1st Megabyte         <>     140 --> unused                      
   13     /  of Main Memory       <>     141 --> unused                      
   14    /                        <>     142 --> unused
   15 _ /                         <>     143 --> unused
   16   \                         <>     144 --> ISDC addressed 63
   17    \                        <>     145 --> ISDC addressed 62
   18     \  1st half of          <>     146 --> ISDC addressed 61
   19      > 2nd Megabyte         <>     147 --> ISDC addressed 60
   20     /  of Main Memory       <>     148 --> ISDC addressed 59
   21    /                        <>     149 --> ISDC addressed 58
   22   /                         <>     150 --> ISDC addressed 57
   23 _/                          <>     151 --> ISDC addressed 56
   24  \                          <>     152 --> ISDC addressed 55           
   25   \                         <>     153 --> ISDC addressed 54
   26    \                        <>     154 --> ISDC addressed 53
   27     \  2nd half of          <>     155 --> ISDC addressed 52
   28      > 2nd Megabyte         <>     156 --> ISDC addressed 51
   29     /  of Main Memory       <>     157 --> ISDC addressed 50
   30    /                        <>     158 --> ISDC addressed 49
   31 _ /                         <>     159 --> ISDC addressed 48
   32   \                         <>     160 --> ISDC addressed 47
   33    \                        <>     161 --> ISDC addressed 46
   34     \  1st half of          <>     162 --> ISDC addressed 45
   35      > 3rd Megabyte         <>     163 --> ISDC addressed 44
   36     /  of Main Memory       <>     164 --> ISDC addressed 43
   37    /                        <>     165 --> ISDC addressed 42
   38   /                         <>     166 --> ISDC addressed 41
   39 _/                          <>     167 --> ISDC addressed 40
   40  \                          <>     168 --> ISDC addressed 39
   41   \                         <>     169 --> ISDC addressed 38           
   42    \                        <>     170 --> ISDC addressed 37
   43     \  2nd half of          <>     171 --> ISDC addressed 36
   44      > 3rd Megabyte         <>     172 --> ISDC addressed 35
   45     /  of Main Memory       <>     173 --> ISDC addressed 34
   46    /                        <>     174 --> ISDC addressed 33
   47 _ /                         <>     175 --> ISDC addressed 32
   48   \                         <>     176 --> ISDC addressed 31
   49    \                        <>     177 --> ISDC addressed 30
   50     \  1st half of          <>     178 --> ISDC addressed 29
   51      > 4th Megabyte         <>     179 --> ISDC addressed 28
   52     /  of Main Memory       <>     180 --> ISDC addressed 27
   53    /                        <>     181 --> ISDC addressed 26
   54   /                         <>     182 --> ISDC addressed 25
   55 _/                          <>     183 --> ISDC addressed 24           
   56  \                          <>     184 --> ISDC addressed 23
   57   \                         <>     185 --> ISDC addressed 22
   58    \                        <>     186 --> ISDC addressed 21
   59     \  2nd half of          <>     187 --> ISDC addressed 20
   60      > 4th Megabyte         <>     188 --> ISDC addressed 19
   61     /  of Main Memory       <>     189 --> ISDC addressed 18
   62    /                        <>     190 --> ISDC addressed 17
   63 _ /                         <>     191 --> ISDC addressed 16

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg002


FOUR-TUPLE                            FOUR-TUPLE                             
    X                                     X                                  
  VALUE  FAILING PCBA             <>    VALUE   FAILING PCBA
  -----  --------------------     <>    -----   --------------------
   64   \                         <>     192 --> ISDC addressed 15
   65    \                        <>     193 --> ISDC addressed 14
   66     \  1st half of          <>     194 --> ISDC addressed 13
   67      > 5th Megabyte         <>     195 --> ISDC addressed 12
   68     /  of Main Memory       <>     196 --> ISDC addressed 11
   69    /                        <>     197 --> ISDC addressed 10
   70   /                         <>     198 --> ISDC addressed 09
   71 _/                          <>     199 --> ISDC addressed 08
   72  \                          <>     200 --> ISDC addressed 07           
   73   \                         <>     201 --> ISDC addressed 06
   74    \                        <>     202 --> ISDC addressed 05
   75     \  2nd half of          <>     203 --> ISDC addressed 04
   76      > 5th Megabyte         <>     204 --> ISDC addressed 03
   77     /  of Main Memory       <>     205 --> ISDC addressed 02
   78    /                        <>     206 --> ISDC addressed 01
   79 _ /                         <>     207 --> ISDC #00 MCS 4way
   80   \                         <>     208 --> unused
   81    \                        <>     209 --> unused
   82     \  1st half of          <>     210 --> unused
   83      > 6th Megabyte         <>     211 --> unused
   84     /  of Main Memory       <>     212 --> unused
   85    /                        <>     213 --> unused
   86   /                         <>     214 --> unused
   87 _/                          <>     215 --> unused
   88  \                          <>     216 --> unused
   89   \                         <>     217 --> unused
   90    \                        <>     218 --> unused
   91     \  2nd half of          <>     219 --> unused
   92      > 6th Megabyte         <>     220 --> unused
   93     /  of Main Memory       <>     221 --> unused
   94    /                        <>     222 --> unused
   95 _ /                         <>     223 --> unused
   96   \                         <>     224 --> VCON addressed 00
   97    \                        <>     225 --> VCON addressed 01
   98     \  1st half of          <>     226 --> VCON addressed 02
   99      > 7th Megabyte         <>     227 --> VCON addressed 03
  100     /  of Main Memory       <>     228 --> VCON addressed 04
  101    /                        <>     229 --> VCON addressed 05
  102   /                         <>     230 --> VCON addressed 06
  103 _/                          <>     231 --> VCON addressed 07
  104  \                          <>     232 --> VCON addressed 08
  105   \                         <>     233 --> VCON addressed 09
  106    \                        <>     234 --> VCON addressed 10
  107     \  2nd half of          <>     235 --> VCON addressed 11
  108      > 7th Megabyte         <>     236 --> VCON addressed 12
  109     /  of Main Memory       <>     237 --> VCON addressed 13
  110    /                        <>     238 --> VCON addressed 14
  111 _ /                         <>     239 --> VCON addressed 15
  112   \                         <>     240 --> VCON addressed 16
  113    \                        <>     241 --> VCON addressed 17
  114     \  1st half of          <>     242 --> VCON addressed 18
  115      > 8th Megabyte         <>     243 --> VCON addressed 19
  116     /  of Main Memory       <>     244 --> VCON addressed 20
  117    /                        <>     245 --> VCON addressed 21
  118   /                         <>     246 --> VCON addressed 22
  119 _/                          <>     247 --> VCON addressed 23

                           (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg003


FOUR-TUPLE                            FOUR-TUPLE                             
    X                                     X                                  
  VALUE  FAILING PCBA             <>    VALUE   FAILING PCBA
  -----  --------------------     <>    -----   --------------------
  120  \                          <>     248 --> VCON addressed 24
  121   \                         <>     249 --> VCON addressed 25
  122    \                        <>     250 --> VCON addressed 26
  123     \  2nd half of          <>     251 --> VCON addressed 27
  124      > 8th Megabyte         <>     252 --> VCON addressed 28
  125     /  of Main Memory       <>     253 --> VCON addressed 29
  126    /                        <>     254 --> VCON addressed 30
  127 _ /                         <>     255 --> Reserved (globals/kbd)

-------------------------------------------------------------------------------

                              *** 9XXX SYSTEMS ***

If the CPU number (indicated in the dump) contains an IDC, use the X value (from
the four-tuple) listed under "IDC". In this case, the failing PCBA is one of the
four shown bracketed. See example #1 below:

EXAMPLE #1:
 The dump shows a 1,0,55,5 four-tuple and CPU 1 on a 9020 system. CPU 1 is
 checked and found to have an IDC - not an IDC-64.

 The "X VALUE" from the four-tuple is 55. Find the number 55, looking under the
 "X VALUE IDC" column. Looking to the right, you will find that this failure was
 caused by one of the ISDCs addressed 48,49,50 or 51. Remember that 16-ways and
 BMTCs have two addresses assigned to them. Isolation of the exact failing ISDC
 (of the four possibles) must be done by replacement (if there is no error LED
 illuminated).


 If the CPU number (indicated in the dump) contains an IDC-64, use the X value
 (from the four-tuple) listed under "IDC-64". In this case the failing PCBA is
 the one immediately to the right of the X value. See example #2 below:

EXAMPLE #2:
The dump shows a 1,0,55,6 four-tuple and CPU #0 on a 9530 system. CPU #0 is
checked and found to have an IDC-64 - not an IDC.

 The "X VALUE" from the four-tuple is 55. Find the number 55, looking under the
 "X VALUE IDC-64" column. Looking to the right, you will find that this failure
 was caused by the Main Memory PCBA that is addressed as 1st half megabyte of
 the 4th megabyte.

                                   ** NOTE **
   RSTK PCBA parity errors will also cause a 1,0,X,6 dump. The dump message,
   therefore, does not descriminate between RSTK and Main Memory errors. It is
   necessary to check the error LEDs if a memory PCBA is indicated in the chart
   below.


                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg004


  X        X                         <>     X        X
VALUE    VALUE                       <>   VALUE    VALUE
 IDC     IDC-64    FAILING PCBA      <>    IDC     IDC-64     FAILING PCBA
-----    ------    ---------------   <>   -----    ------     ---------------
  0         0   \                    <>    32       128   \
            1    \                   <>             129    \
            2     \  1st half of     <>             130     \  1st half of
___________ 3      > 1st Megabyte    <>   _________ 131      > 9th Megabyte
  1         4     /  of Main Memory  <>    33       132     /  of Main Memory
            5    /                   <>             133    /
            6   /                    <>             134   /
___________ 7 _/                     <>   _________ 135 _/
  2         8  \                     <>    34       136  \
            9   \                    <>             137   \
           10    \                   <>             138    \
__________ 11     \  2nd half of     <>   _________ 139     \  2nd half of
  3        12      > 1st Megabyte    <>    35       140      > 9th Megabyte
           13     /  of Main Memory  <>             141     /  of Main Memory
           14    /                   <>             142    /
__________ 15 _ /                    <>   _________ 143 _ /
  4        16   \                    <>    36       144   \
           17    \                   <>             145    \
           18     \  1st half of     <>             146     \  1st half of   
__________ 19      > 2nd Megabyte    <>   _________ 147      > 10th Megabyte
  5        20     /  of Main Memory  <>    37       148     /  of Main Memory
           21    /                   <>             149    /                 
           22   /                    <>             150   /
__________ 23 _/                     <>   _________ 151 _/
  6        24  \                     <>    38       152  \
           25   \                    <>             153   \
           26    \                   <>             154    \
__________ 27     \  2nd half of     <>   _________ 155     \  2nd half of
  7        28      > 2nd Megabyte    <>    39       156      > 10th Megabyte
           29     /  of Main Memory  <>             157     /  of Main Memory
           30    /                   <>             158    /                 
__________ 31 _ /                    <>   _________ 159 _ /
  8        32   \                    <>    40       160   \
           33    \                   <>             161    \
           34     \  1st half of     <>             162     \  1st half of
__________ 35      > 3rd Megabyte    <>   _________ 163      > 11th Megabyte
  9        36     /  of Main Memory  <>    41       164     /  of Main Memory
           37    /                   <>             165    /
           38   /                    <>             166   /
__________ 39 _/                     <>   _________ 167 _/
 10        40  \                     <>    42       168  \
           41   \                    <>             169   \
           42    \                   <>             170    \
__________ 43     \  2nd half of     <>   _________ 171     \  2nd half of
 11        44      > 3rd Megabyte    <>    43       172      > 11th Megabyte
           45     /  of Main Memory  <>             173     /  of Main Memory
           46    /                   <>             174    /
__________ 47 _ /                    <>   _________ 175 _ /
 12        48   \                    <>    44       176   \
           49    \                   <>             177    \
           50     \  1st half of     <>             178     \  1st half of
__________ 51      > 4th Megabyte    <>   _________ 179      > 12th Megabyte
 13        52     /  of Main Memory  <>    45       180     /  of Main Memory
           53    /                   <>             181    /
           54   /                    <>             182   /
__________ 55 _/                     <>   _________ 183 _/

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg005


  X        X                         <>     X        X
VALUE    VALUE                       <>   VALUE    VALUE
 IDC     IDC-64    FAILING PCBA      <>    IDC     IDC-64     FAILING PCBA
-----    ------    ---------------   <>   -----    ------     ---------------
 14        56  \                     <>    45       184  \                   
           57   \                    <>             185   \
           58    \                   <>             186    \
__________ 59     \  2nd half of     <>   _________ 187     \  2nd half of
 15        60      > 4th Megabyte    <>    47       188      > 12th Megabyte
           61     /  of Main Memory  <>             189     /  of Main Memory
           62    /                   <>             190    /
__________ 63 _ /                    <>   _________ 191 _ /
 16        64   \                    <>    48       192 ---> ISDC addressed 15
           65    \                   <>             193 ---> ISDC addressed 14 .
           66     \  1st half of     <>             194 ---> ISDC addressed 13
__________ 67      > 5th Megabyte    <>   _________ 195 ---> ISDC addressed 12
 17        68     /  of Main Memory  <>    49       196 ---> ISDC addressed 11
           69    /                   <>             197 ---> ISDC addressed 10
           70   /                    <>             198 ---> ISDC addressed 09
__________ 71 _/                     <>   _________ 199 ---> ISDC addressed 08
 18        72  \                     <>    50       200 ---> ISDC addressed 07
           73   \                    <>             201 ---> ISDC addressed 06
           74    \                   <>             202 ---> ISDC addressed 05
__________ 75     \  2nd half of     <>   _________ 203 ---> ISDC addressed 04
 19        76      > 5th Megayte     <>    51       204 ---> ISDC addressed 03
           77     /  of Main Memory  <>             205 ---> ISDC addressed 02
           78    /                   <>             206 ---> ISDC addressed 01
__________ 79 _ /                    <>   _________ 207 ---> ISDC 00 MCS 4WAY
 20        80   \                    <>    52       208 ---> ISDC addressed 63
           81    \                   <>             209 ---> ISDC addressed 62
           82     \  1st half of     <>             210 ---> ISDC addressed 61
__________ 83      > 6th Megabyte    <>   _________ 211 ---> ISDC addressed 60
 21        84     /  of Main Memory  <>    53       212 ---> ISDC addressed 59
           85    /                   <>             213 ---> ISDC addressed 58
           86   /                    <>             214 ---> ISDC addressed 57
__________ 87 _/                     <>   _________ 215 ---> ISDC addressed 56
 22        88  \                     <>    54       216 ---> ISDC addressed 55
           89   \                    <>             217 ---> ISDC addressed 54
           90    \                   <>             218 ---> ISDC addressed 53
__________ 91     \  2nd half of     <>   _________ 219 ---> ISDC addressed 52
 23        92      > 6th Megabyte    <>    55       220 ---> ISDC addressed 51
           93     /  of Main Memory  <>             221 ---> ISDC addressed 50
           94    /                   <>             222 ---> ISDC addressed 49
__________ 95 _ /                    <>   _________ 223 ---> ISDC addressed 48
 24        96   \                    <>    56       224 ---> ISDC addressed 47 .
           97    \                   <>             225 ---> ISDC addressed 46
           98     \  1st half of     <>             226 ---> ISDC addressed 45
__________ 99      > 7th Megabyte    <>   _________ 227 ---> ISDC addressed 44
 25       100     /  of Main Memory  <>    57       228 ---> ISDC addressed 43
          101    /                   <>             229 ---> ISDC addressed 42
          102   /                    <>             230 ---> ISDC addressed 41
_________ 103 _/                     <>   _________ 231 ---> ISDC addressed 40
 26       104  \                     <>    58       232 ---> ISDC addressed 39
          105   \                    <>             233 ---> ISDC addressed 38
          106    \                   <>             234 ---> ISDC addressed 37
_________ 107     \  2nd half of     <>   _________ 235 ---> ISDC addressed 36
 27       108      > 7th Megabyte    <>    59       236 ---> ISDC addressed 35
          109     /  of Main Memory  <>             237 ---> ISDC addressed 34
          110    /                   <>             238 ---> ISDC addressed 33
_________ 111 _ /                    <>   _________ 239 ---> ISDC addressed 32

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg006


  X        X                         <>     X        X
VALUE    VALUE                       <>   VALUE    VALUE
 IDC     IDC-64    FAILING PCBA      <>    IDC     IDC-64     FAILING PCBA
-----    ------    ---------------   <>   -----    ------     ---------------
 28       112   \                    <>    60       240 ---> VCON addressed 00
          113    \                   <>             241 ---> VCON addressed 01
          114     \  1st half of     <>             242 ---> VCON addressed 02
_________ 115      > 8th Megabyte    <>   _________ 243 ---> VCON addressed 03
 29       116     /  of Main Memory  <>    61       244 ---> VCON addressed 04
          117    /                   <>             245 ---> VCON addressed 05
          118   /                    <>             246 ---> VCON addressed 06
_________ 119 _/                     <>   _________ 247 ---> VCON addressed 07
 30       120  \                     <>    62       248 ---> VCON addressed 08
          121   \                    <>             249 ---> VCON addressed 09
          122    \                   <>             250 ---> VCON addressed 10
_________ 123     \  2nd half of     <>   _________ 251 ---> VCON addressed 11 .
 31       124      > 8th Megabyte    <>    63       252 ---> VCON addressed 12
          125     /  of Main Memory  <>             253 ---> VCON addressed 13
          126    /                   <>             254 ---> VCON addressed 14
_________ 127 _ /                    <>   _________ 255 - Reserved (global/kbd)

ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB037 Pg007


FIB 00038                                                             09/18/87

             *** Disk formatting and defective track assignment ***

 The information in this bulletin will assist you in Fixed Disk formatting
and defective track assignment and relocation using the D.I.V.E. software.

 D.I.V.E is an acronym for Disk Initialization, Verification and Evaluation. The
program is located on and may be loaded from the customer's O.S. tape.

 R.O.T. is an acronym for Relocate One Track. This is an option on the D.I.V.E..
program menu.

LOADING THE D.I.V.E. PROGRAM:

                                  *** NOTE ***
   If you are about to relocate (ROT) a track, before loading the DIVE program,
   proceed to the "DEFECTIVE TRACK RELOCATION:" heading on page 2 and follow
   the instructions.

1. Obtain the system from the customer and make certain that no users are on
   the system.

2. Mount the customer's O.S. tape on the streamer tape drive and make the drive
   READY and ONLINE.

3. Press the ALTLOAD key on the system operator console.

   The system will boot from the streamer. The screen on terminal T0 (bottom
   port of MCS PCBA or if there is a VCON in the system, the bottom port on
   the 1st VCON) will be cleared and the system will display: L O A D I N G  . .

   While the L O A D I N G message is displayed, toggle the upper switch on the
   MCS PCBA. This must be done within 5 seconds or you will miss the D.I.V.E.
   load and the system will display options for updating O.S. and WCS slot 0.
   If you were too slow, perform step 3 again (the tape will rewind by itself
   when you press ALTLOAD).

4. The D.I.V.E. program menu will be displayed. There will be three options:

                        1. FORMAT A DISK
                        2. RELOCATE ONE TRACK
                        3. QUIT

5. If you wish to format the disk, type 1 and press CR; if you want to
   relocate one track, type 2 and press CR.

FIXED DISK DRIVE FORMATTING:

 o The system will run through several prompts which are quite simple to
   answer. The following are some things to remember:

.  A. Read each answer option carefully. If the prompt answer says (YES/NO) then
      enter YES or NO. If you answer with Y or N, the system may not react as
      expected. Conversely, don't answer YES or NO to a (Y/N) prompt.

   B. Be certain to answer the "STOP ON ERROR?" prompt with NO.

   C. The 5 1/4" disks on the 7xxx systems are to be formatted using the ECC
      option only - DO NOT use CRC format on the 5 1/4" drives.
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB038 Pg001


   D. On all drives other than the 5 1/4" units, formatting must be done using
      the CRC option only - DO NOT use ECC format.

   E. Be certain to type in all known defects from the drive's printed defect
      list.

DEFECTIVE TRACK RELOCATION:

o When it is necessary to assign an alternate track on a disk drive or pack,
  you MUST first determine which files may be affected by the ROT action. In
  order to do this, perform the following steps:

  1. Determine (from the Error Log) the problem Drive number, Cylinder number
     and Head number and record that information on paper.                   

     As an example the problem information is as follows:

        DRIVE 3 (Unit Address 32), CYLINDER 344, HEAD 1

  2. From a ! prompt, enter SYSPREFIX and press CR.

     The system will respond with: (xxxx).Rxxxx.SYS.,etc

    o Set your prefix to the INST node using the above as follows:

      Enter PREFIX (xxxx).Rxxxx.INST. and press CR.
      (use the actual data displayed on the SYSPREFIX in place of the x's)

    o From a ! prompt, enter ALTTRACKS and press CR.

       The system will respond with a screen similar to this:                

*******************************************************************************
*.                                                                             *
*       DRV TDP Dev Unit         Description                                   *
*.      --- --- --- ---- ---------------------------                           *
*       0)   1   0   16     Disk F P62                                         *
*       1)   1   1   17     Disk F P144                                        *
*       2)   2   2   18     Disk R T285                                        *
*       3)   3   3   32     Disk F P144                                        *
*.                                                                             *
*******************************************************************************

  o Find the problem drive number on this screen and write down the description.

  o In this example, Drive 3, Unit 32 (Unit Address) is a Disk F P144. The F
    means FIXED, the P144 indicates that this is a Priam drive with a FORMATTED
    capacity of 144 megabytes. The portion of the description we need in this
    procedure is the P144.

  3. From a ! prompt, enter HEADS and press CR.


                            (continued on next page)


     The system will respond with a screen similar to this:                  
HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB038 Pg002


*******************************************************************************
*.                                                                             *
*  Vari    Name*        cyls1 hds1 secs1 reloc  diagcyl                        *
*    0)    P307          1551   10    17    36     1512                        *
*    1)    P62           1115    2    17    40     1072                        *
*    2)    T75            814    4    17    19      792                        *
*    3)    P144          1115    6    17    40     1072                        *
*    4)    T285           814   18    17    19      792                        *
*    5)    M150           839    5    28    25      811                        *
*    6)    P197          1022   10    17    26      993                        *
*    7)    P287          1648    9    17    53     1592                        *
*    8)    M43            829    5     8    15      811                        *
*    9)    M55            917    6     8    18      896                        *
*   10)    M118           917   14     8    12      902                        *
*   11)    M95            917   10     8    15      899                        *
*.                                                                             *
*    V) Disk Vari - 0                        S) Disk Sector - 0                *
*.                                                                             *
*    C) Cylinder - 0                         V) Variance, S)ect, C)yl, Q)uit?  *
*       Head     - 0                                                           *
*       Sector   - 0                                                           *
*.                                                                             *
*******************************************************************************

 o Using the information previously written down, do the following:

  1. In the "Name*" column, find the description (Example is P144).

  2. The cursor will be after the "V) Variance, etc" line. Type the number in
     the "Vari" column next to the applicable Name* item (Example is 3).
     The system will place the description next to the "V) Disk Vari -".

  3. The cursor will return to the "V) Variance, etc" line. Type C and the
     cursor will move to the "C) Cylinder -" line. Type the problem Cylinder
     number (Example is 344) and press CR.

  4. The cursor will move to the "Head     -" line. Type the problem Head
     number (Example is 1) and press CR.

  5. The cursor will move to the "Sector   -" line. Type 0 and press CR.

  6. The system will calculate the physical sector number and display it after
     the "S) Disk sector -" line.

  7. Record this physical sector number. It is the START SECTOR of the track
     which is to be relocated.

  8. Perform the above steps 3 and 4 again and then go to step 9.

  9. Look in the "secs1" column and find the number in the same row with the
     selected drive in the "Name* column (Example is 17 in the same row with
     P144).

 10. The cursor will be next to the "Sector   -". Type the number located in
     step 9 and press CR.

 11. The system will calculate the physical sector number and display it after
     the "S) Disk sector -" line.

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB038 Pg003


 12. Record this physical sector number. It is the END SECTOR of the track
     which is to be relocated.

 o Type Q and the system will display a ! prompt.

   Type DISKANALYZER and press CR.

 o The system will display the Disk Analyzer Utility menu.

   Type 7 and press CR. (LIST FILES IN A SECTOR RANGE)

 o The system will display a new screen with the cursor after "DRIVE NUMBER:".

   Type the problem drive number (Example is 3) and press CR.

 o The system will display the FAMILY NAME and FAMILY INDEX and the cursor will.
   move to the "START SECTOR:" line.

   Type the START SECTOR number recorded in step 7 above (Example is 43362) and
   press CR.

 o The cursor will move to the "END SECTOR:" line.                           

   Type the END SECTOR number recorded in step 12 above (Example is 43379) and
   press CR.

 o The cursor will move to the "OUTPUT DEVICE:" line.

   If possible, a printed output from this utility is desirable. If a printer
   is available, type the printer ID such as LP, P1, etc. and press CR. If it
   is not possible to print, then type VDT and press CR.

 o Type Y and press CR at the "PAUSE ON FULL SCREEN (Y/N):" prompt.          

 o The cursor will move to the "ENTRIES CORRECT (Y/N):" line.

   Check the START SECTOR and END SECTOR just entered for accuracy and if they
   are correct type Y and press CR.

 o The system will check the disk and find the names of all files which have
   data contained within the track you are about to relocate. When this is
   complete the system will display a screen similar to the one below (this is
   what printed out when the example START and END sectors were entered with
   the example numbers of 43362 and 43379):                                  

*******************************************************************************
*.                                                                             *
* FAMILY : SNSS3 - DISK ANALYZER - LIST FILES IN A SECTOR RANGE                *
* FILENAME                        EXTENT  STRTSCT - ENDSCT  $STRTSCT - $ENDSCT *
* .F.ED.REC08271149                    0    42367 -  43368   $00A57F - $00A968 *
* .FIB.DATA.FIB000900003               0    43369 -  43377   $00A969 - $00A971 *
* .FIB.DATA.FIB011900008               0    43378 -  43386   $00A972 - $00A97A *
*.DONE                                                                         *
*.CR TO CONTINUE ->                                                            *
*.                                                                             *
*******************************************************************************

 o  The disk family name is, as shown, "SNSS3". The family name is enclosed
   in () and preceeds the file name(s) - ie. (SNSS3).filename.

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB038 Pg004


 o  Under FILENAME are the names of all files which have data contained within
   the track that is to be relocated. In this example the file names are:

   ".F.ED.REC08271149", ".FIB.DATA.FIB000900003" and ".FIB.DATA.FIB0119000008"

                                *** CAUTION ***
    Since some sectors in that track are defective, the data may not be
   recovered on the ROT operation, in which case the file(s) will be corrupted.

    If no file names are given under FILENAME, but instead, the system displays
   "< BELOW FS DOMAIN", this means that the defective sectors are located in
   either the disk label area or other crucial BOSS/VS areas. If this is the
   case, be aware that, if data is unrecoverable, it will be necessary to
   perform various disk repair operations after the ROT is done. If you have 
   this situation, contact the local Basic Four Program Support group or Sorbus
   support personel before proceeding with the ROT. In any case, BE CERTAIN a
   COMPLETE, VERIFIED backup of the disk is available!

   File names that begin with a colon (:) are special File System files. If any
   of the file names given start with a colon (such as :DIRECTORY, :DIR, :NODES,
   :AVSP01, etc.) and the data is not recoverable during the ROT, it will be
   necessary to repair the file via Diskanalyzer, Type II load, etc.
    This is true for all files starting with a colon except ":OVERLAY" which is
   cleared during each boot of BOSS/VS. If any other file starting with a colon
   is given contact the local Basic Four Program Support group or Sorbus support
   personel before proceeding with the ROT.

 o  If neither of the conditions of the above two paragraphs apply, advise the
   customer of the file names and verify that they have an adequate backup of
   the files prior performing the ROT activity.

 o  If no file names are given under FILENAME, but instead, the system displays
   "(AVAILABLE FILE SPACE)", then you may proceed with the ROT since the track
   contains no active data.

 o  Perform all steps listed under "LOADING THE D.I.V.E. PROGRAM" shown on
   page 1 and then proceed with the track relocation prompts.

ORIGINATOR: H. Mitchell


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB038 Pg005


FIB 00039                                                             10/20/88

             *** MEMORY PCBA - 4/8/16 MB (9xxx & ASxx Systems) ***           

The following information applies to this PCBA part number:

       MM892525 - 4/8/16 MB  (4 MB) MEMORY PCBA - 903621-008 - ASxx/9xxx
       MM892524 - 4/8/16 MB  (8 MB) MEMORY PCBA - 903621-007 - ASxx/9xx
       MM892523 - 4/8/16 MB (16 MB) MEMORY PCBA - 903621-005 - ASxx/9xxx
       MM896255 - 4/8/16 MB  (4 MB) MEMORY PCBA - 903621-004 - 9xxx only
       MM896265 - 4/8/16 MB  (8 MB) MEMORY PCBA - 903621-003 - 9xxx only
       MM896270 - 4/8/16 MB (16 MB) MEMORY PCBA - 903621-001 - 9xxx only

            -----------------SWITCH SETTING LEGEND-----------------
            |                                                     |          
            | C = Closed or On    O = Open or Off    X = Not Used |
            -------------------------------------------------------

 Starting Memory Address Switches, S2 and S3, determine the starting location
of each bank on the PCBA and whether or not the bank is enabled.

 Each 4MB bank MUST have its own starting address location. (Think of the 16MB
PCBA as if it were four (4) separate 4MB PCBA's).

 Set the memory address switches, S2 and S3, at locations 11D and 11E as follows
assigning a unique starting address for each bank:


USE THIS ADDRESS CHART IF JUMPERS JP 1 & 2 SET FOR GREATER THAN 12 MEG       
           ASxx Systems Must be Set for Greater than 12 MEG

 MEMORY BANK    |   ADDRESS SWITCH NO. - POSITION   | MEMORY
                |                                   | BANK
    BANK 0      | S3-6 | S3-7 | S3-8 | S3-9 | S3-10 | ADDRESS
    BANK 1      | S3-1 | S3-2 | S3-3 | S3-4 | S3-5  | RANGE
    BANK 2      | S2-6 | S2-7 | S2-8 | S2-9 | S2-10 | IN
    BANK 3      | S2-1 | S2-2 | S2-3 | S2-4 | S2-5  | MEGABYTES
----------------|------|------|------|------|-------|-----------             
                |  O   |  O   |  O   |  O   |  C    |   0-3
                |  C   |  O   |  O   |  O   |  C    |   4-7
                |  O   |  C   |  O   |  O   |  C    |   8-11
                |  -   |  -   |  -   |  -   |  -    |  12-15 -> NOT USED
                |  O   |  O   |  C   |  O   |  C    |  16-19
                |  C   |  O   |  C   |  O   |  C    |  20-23
                |  O   |  C   |  C   |  O   |  C    |  24-27
                |  -   |  -   |  -   |  -   |  -    |  28-31 -> NOT USED
                |  O   |  O   |  O   |  C   |  C    |  32-35
                |  C   |  O   |  O   |  C   |  C    |  36-39
                |  O   |  C   |  O   |  C   |  C    |  40-43
                |  -   |  -   |  -   |  -   |  -    |  44-47 -> NOT USED
                |  O   |  O   |  C   |  C   |  C    |  48-51
                |  C   |  O   |  C   |  C   |  C    |  52-55
                |  O   |  C   |  C   |  C   |  C    |  56-59
                |  -   |  -   |  -   |  -   |  -    |  60-63 -> NOT USED
                |  X   |  X   |  X   |  X   |  O    |  DESELECT THIS BANK
                -------------------------------------

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB039 Pg001


USE THIS ADDRESS CHART IF JUMPERS JP 1 & 2 SET FOR EQUAL/LESS THAN 12 MEG
           This Chart only applies to 9xxx Series Systems

 MEMORY BANK    |   ADDRESS SWITCH NO. - POSITION   | MEMORY
                |                                   | BANK                      
.   BANK 0      | S3-6 | S3-7 | S3-8 | S3-9 | S3-10 | ADDRESS                   
    BANK 1      | S3-1 | S3-2 | S3-3 | S3-4 | S3-5  | RANGE                     
    BANK 2      | S2-6 | S2-7 | S2-8 | S2-9 | S2-10 | IN                        
    BANK 3      | S2-1 | S2-2 | S2-3 | S2-4 | S2-5  | MEGABYTES                 
________________|______|______|______|______|_______|__________                 
                |  O   |  O   |  C   |  C   |  C    |   0-3                     
                |  C   |  O   |  C   |  C   |  C    |   4-7                     
                |  O   |  C   |  C   |  C   |  C    |   8-11                    
                |  X   |  X   |  X   |  X   |  O    | DESELECT THIS BANK
                |___________________________________|

** NOTE: DESELECT setting is used to disable a missing or failing 4MB bank of
         memory on the PCBA, ie., BANK 0, BANK 1, etc.

         EXAMPLE: If a bank of memory should have errors, DESELECT the failing
         4MB bank until the PCBA can be replaced.

         Also, if the PCBA is a 4MB or 8MB, those missing bank's address
         switches must be set to DESELECTed.

Set the Data Display/Memory Cycle Switch, S4, at location 2GG as follows:

       SWITCH POSITIONS
        4   3   2   1
        -------------
        O   O   C   O  -  9xxx systems
        O   O   C   C  -  ASxx systems - Y-bus display syndrome err info
        O   O   O   C  -  ASxx systems - Y-bus display backplane err info

______________________________JUMPERS______________________________

Set JMP1 and JMP2, at location 7D, as follows:

                                       JMP1      JMP2
                                      ------    ------                       
Main memory not greater than 12MB     2 to 3    2 to 3
Main memory greater than 12MB........ 1 to 2    1 to 2 - ASxx setting

** NOTE: JMP pins 1 are identified by a square pad on the solder side of the
         PCBA, toward the edge connector.

_______________________________LEDs________________________________

 There are four LEDs located at the top front of the PCBA, numbered DS1 through
DS2, top to bottom, which function as follows:

DS1 - RED (top) indicates a parity error in the address or control lines.
DS2 - RED indicates a parity error in the data.
DS3 - RED indicates a multi-bit error (not correctable).
DS4 - AMBER (bottom) indicates a single-bit error (correctable).

 A momentary switch, S1, is located beneath the AMBER LED and it functions to
reset any illuminated LEDs.

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB039 Pg002


______________________________NOTES________________________________

1. Do not use this PCBA in 7XXX or 8XXX systems.

2. In order for the 9XXX system to support this PCBA, various other conditions
   must be met. See the MPx Systems FIB group, FIB #105 for the requirements.

3. 4/8/16 MB boards MUST be addressed on EVEN boundaries.

4. 4/8/16 MB boards must be located immediately to the right of the DMA(s) on
   9xxx systems, immediately to the right of the MCS/M on ASxx systems.

5. When using these boards intermixed with other capacity Memory boards, to
   avoid addressing problems, address the HIGHEST capacity boards in the LOWEST
   addresses.

ORIGINATOR: H. Mitchell
            N. Jones                                                         


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB039 Pg003


FIB 00040                                                             01/31/91

 *** DMA-II/SCSI Controller PCBA and SCSI Embedded Disk (9xxx/ASx Systems) ***

 The following information applies to these PCBA part numbers:

         MM894035 - DMA-II/SCSI Controller PCBA - 903599-001
         MM894039 - DMA-II/SCSI Controller PCBA - 903599-002
         MM894037 - DMA-II/SCSI Controller PCBA - 903741-001
         MM894038 - DMA-II/SCSI Controller PCBA - 903741-002

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

o Set the Self-test Diagnostic switch - SW3 (near location 9Q) as follows:

  Set ALL positions to OPEN for normal on-line operation.

   (See DMA II/SCSI Controller Service manual - M8201 for diagnostics settings)
o Set the Printer Configuration switch - SW4 (near location 8K) as follows:

                               J6/PRINTER 0 : J7/PRINTER 1                   
             PRINTER            SW4  Switch : Positions
              TYPE              :9: 8:7:6:5 : 4:3:2:1:
          ----------------------:-:--:-:-:--:--:-:-:-:                       
          Model 4201 Matrix     :O: C:O:O:O : C:O:O:O:
          ----------------------:-:--:-:-:--:--:-:-:-:                       
          Model 4209/20/21 Band :O: O:O:O:C : O:O:O:C:
          ----------------------:-:--:-:-:--:--:-:-:-:                       
          Model 4214 DMP        :O: C:O:C:O : C:O:C:O:
          ----------------------:-:--:-:-:--:--:-:-:-:                       
          Undefined             :O: O:O:C:C : O:O:C:C:
          --------------------------------------------
  SW4, position 9 must be in the OPEN position for normal operation. This
  switch is used in the CLOSED position for board repair at depot facilities.

o There are no switch settings for the disk or tape drives attached. Instead,
  the DMA-II interrogates the SCSI devices at power-on time and self-configures
  according to those devices which respond.

____________________________JUMPERS_______________________________

o JMP1, near location 9S should be either, jumpered 2 to 3, or removed, for all
  systems. Both jumper settings are the same. Some PCBAs may not have this
  jumper at all.
_______________________________LEDs_______________________________

o There are four LEDs, near the top of the DMA PCBA, which function as follows:

   DS1 (red, upper) indicates a main memory data parity error.
   DS2 (yellow) indicates a main memory time-out error.
   DS3 (green) indicates the DMA-II has successfully completed self-test.
   DS4 (red, lower) indicates a main memory address or control parity error.

 Pushbutton switch - SW1 is used to reset the error LEDs. It is mounted
 between DS2 and DS3.
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB040 Pg001


_________________________CABLE CONNECTIONS_________________________

o There are four connectors on the front of the PCBA, numbered from top to
  bottom, J7, J6, J5 and J4.

  J7 is the parallel printer port for printer 1.

  J6 is the parallel printer port for printer 0.

  J5 is the SCSI Bus cable connector which is routed to the SCSI devices in a
     parallel arrangement. One device must have a SCSI Bus terminator. Although
     the terminator may be on any one of the devices, it is recommended that
     it be the device at the end of the Bus cable.

  J4 is used to connect a VDT to the DMA for running self-test diagnostics. This
     connector is mainly to be used by PCBA repair personel at the depot level.

___________________SCSI DEVICE SWITCH/JUMPER SETTINGS_______________________

o 5 1/4 Inch SCSI "Embedded" Disk Drive  (XT-3280):

  There are two Main Interface Logic PCBAs currently in the field. These PCBAs
  are compatible and may be used interchangeably. Use the information below
  according to the P/N of the PCBA involved.

  The SCSI address on this drive is set via three jumpers, located near the Bus
  connector. Set the drive to it's unique address as follows:

  PCBA P/N 1012539:

     JP85     JP84     JP83   SCSI ADDRESS
     ----     ----     ----   ------------                                   
      IN.......IN.......IN.......07 (RESERVED, DON'T USE)
      IN.......IN.......OUT......06
      IN.......OUT......IN.......05
      IN.......OUT......OUT......04
      OUT......IN.......IN.......03
      OUT......IN.......OUT......02
      OUT......OUT......IN.......01
      OUT......OUT......OUT......00 (RESERVED IF 1/4" TAPE IS ON THIS DMA-II)

  PCBA P/N 1014382:

     JP14     JP13     JP12   SCSI ADDRESS
     ----     ----     ----   ------------                                   
      IN.......IN.......IN.......07 (RESERVED, DON'T USE)
      IN.......IN.......OUT......06
      IN.......OUT......IN.......05
      IN.......OUT......OUT......04
      OUT......IN.......IN.......03
      OUT......IN.......OUT......02
      OUT......OUT......IN.......01
      OUT......OUT......OUT......00 (RESERVED IF 1/4" TAPE IS ON THIS DMA-II)


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB040 Pg002


  There are thirteen other jumpers on the PCBA. The correct setting for these
  jumpers are as follows:

 PCBA P/N 1012539:

        21...IN         81...IN         92...IN
        41...IN         82...OUT        93...IN
        42...OUT        86...IN         94...IN
        43...IN         87...IN
        44...IN         91...IN

 PCBA P/N 1014382

         1...IN         10...IN          5...IN
         2...IN          9...OUT         6...IN
         7...OUT        15...IN         11...IN
         3...IN         16...IN
         8...IN          4...IN

o Field converted 5 1/4 Inch Disk Drive with SCSI Adapter PCBA attached:

  The SCSI address on this drive is set via positions 6, 7 and 8 of an
  8-position dip switch located on the SCSI adapter PCBA at location U7. Set the
  drive to it's unique address as follows:

  LOCATION U7 SWITCH POSITIONS

      6        7        8      SCSI ADDRESS
     ----     ----     ----    ------------                                  
      O........O........O........00 (RESERVED IF 1/4" TAPE ON THIS DMA-II)
      O........O........C........01
      O........C........O........02
      O........C........C........03
      C........O........O........04
      C........O........C........05
      C........C........O........06
      C........C........C........07 (RESERVED, DON'T USE)

  The rest of the switch positions on the DIP switch at location U7 must be
  set as follows:

          LOCATION U7 SWITCH POSITIONS

        1       2       3       4       5
       ---     ---     ---     ---     ---
        O       O       C       C       O

   There is a four-position DIP switch at location U1. The correct settings for
   those switches are as follows:

       LOCATION U1 SWITCH POSITIONS

        1       2       3       4
       ---     ---     ---     ---                                           
        C       C       C       O


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB040 Pg003


o  M380/M760 Disk Drive Jumper Settings

      Drive address jumpers

           JP37       JP36      JP35     Binary Weight   Device Address
        ---------  ---------- ---------  -------------   --------------
        Installed  Installed  Installed  1     1     1   07 (Reserved)*
        Installed  Installed  Removed    1     1     0   06
        Installed  Removed    Installed  1     0     1   05
        Installed  Removed    Removed    1     0     0   04
        Removed    Installed  Installed  0     1     1   03
        Removed    Installed  Removed    0     1     0   02 (Disk 1)
        Removed    Removed    Installed  0     0     1   01 (Disk 0)
        Removed    Removed    Removed    0     0     0   00 (Reserved)**

        *  SCSI device address 07 is reserved for the DMA-II board.
        ** Device address 00 is reserved for SCSI tape drives.

      Miscellaneous Jumpers

        Jumper     Settings            Jumper      Settings                  
       -------    ----------          --------    ----------
       ***JP1     Installed             JP18      Removed
       ***JP2     Installed             JP26      Removed
       ***JP3     Installed             JP32      Installed
       ***JP4     Removed               JP33      Installed
       ***JP8     Installed             JP34      Removed
       ***JP9     Installed             JP38      Removed                    
          JP10    Installed             JP39      Installed
          JP11    Installed             JP40      Installed
          JP13    RDY                   JP41      Installed
          JP14    Installed             TXD-E19   Installed
          JP15    Removed

      *** Not on M380.

o 1/4-Inch SCSI Tape Drive (TDC-3330 or TDC-3325)
  The SCSI address on this drive is set via positions 1, 2 and 3 of an
  8-position dip switch (SW1) located on the SCSI PCBA of the drive, near J1.
  Position 8 of SW1 must always set to CLOSED for parity checking. Set the drive
  to it's unique address as follows:

    SW1 SWITCH POSITIONS

 8       3        2        1     SCSI ADDRESS
---     ---      ---      ---    ------------                                
 C.......O........O........O.......00 (NORMALLY THE TAPE UNIT SCSI ADDRESS USED)
 C.......O........O........C.......01
 C.......O........C........O.......02
 C.......O........C........C.......03
 C.......C........O........O.......04
 C.......C........O........C.......05
 C.......C........C........O.......06
 C.......C........C........C.......07 (RESERVED, DON'T USE)

 Set positions 4, 5, 6 and 7 of SW1 to the OFF or OPEN position.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB040 Pg004


______________________________NOTES___________________________________________
1. The DMA controllers  MUST be installed in the first available card slots to
   the right of the right-most IDC PCBA (or other DMA PCBAs) in 9xxx systems or
   in the first slots to the right of the rightmost STACHE PCBA (or other DMA
   PCBAs) in ASx systems.

2. There is no address switch for the DMA-II PCBA.

3. There may be a maximum of four DMA-II PCBAs installed in a system.

4. Any DMA-I PCBAs, residing in the same system with the DMA-II, must be at
   or above Revision AA.

5. In order to support the DMA-II board, BOSS/VS must be at or above 9.6C.

6. Only one SCSI 1/4-inch tape drive is allowed on the system. Additional tape
   drives may be attached via BMTC.

7. Each device attached to a DMA-II SCSI Bus must have a UNIQUE SCSI address
   so that no two devices attached to a DMA-II have the same address.

8. In order to function in an ASx system a -002 version DMA-II must be used
   (903599-002 or 903741-002).

9. 903599-002 at REV N or 903741-002 at REV F DMA-II PCBAs are required for
   support of the M380/M760 SCSI drive. Also requires OS n.6G or later.

10. 903599-002 or 903741-002 DMA-II PCBAs are required if there are DMA-I PCBAs
    residing in the same system.


ORIGINATOR: H. Mitchell/N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB040 Pg005


FIB 00041                                                             01/11/90
              *** Bootable O.S. & Diagnostic Tape Information ***

810 and 9xxx systems boot from tape using the first file on tape, 7xxx and 8xxx
systems boot from tape using the second file on tape, and Advanced Series
Systems boot from the file number on the tape which is selected by the sense
switches (0=1ST, 3=4TH). Therefore the files must be placed on tape in the
proper.order to make the tape bootable. The file order (if any additional files 
are on the tape) after the first files (two files for MPx, four files for
Advanced Series) is not relevant to the tape boot process.

This allows a tape to be used for more than one system type on the same O.S.
release (810/8xxx, 8xxx/9xxx).

Since the software support for the 810 ended at release 8.4D and the first 9xxx
release was 9.5C, there is no problem with utilization of the first file.

Use the SAVERESTORE utility, save files to tape option, to create bootable
tapes.

_______________________MPx O.S. TAPE BOOT INFORMATION_________________________

O.S. image files are identified as follows:

   (DISK).Rzzzz.INST.OSN.ATyzzzzzzzz
                       : :::--------                                         
                       : :::   :                                             
                       : :::   * - rev level, not included on n.6G & later OS
                       : :::                                                 
                       : ::* - X=tape boot OS without DIVE, n.6G & later
                       : ::                                                  
                       : :* - T=1/2" tape; C=1/4" tape (7xxx); V=disk
                       : :                                                   
                       : * - A=9xxx (or 810) tape; B=7xxx/8xxx tape; U=disk
                       :     C=Advanced Series
                       :                                                     
                       * - releases prior to 9.6C will display 'OS0', n.6C will 
                           display 'OSN', n.6G & later displays 'OS'

* To make a bootable 8xxx/9xxx 1/2" O.S. tape place files on tape as follows:

  1. .Rxxxx.INST.OSN.ATxxxxxxxxx  (9xxx 1/2" tape image file)
  2. .Rxxxx.INST.OSN.BTxxxxxxxxx  (7xxx/8xxx 1/2" tape image file)
  3. No other files are required but any number may be added after the second
     file

* To make a bootable 7xxx 1/4" O.S. tape place files on tape as follows:

  1. .Rxxxx.INST.OSN.ATxxxxxxxxx (any file will work as the first file)
  2. .Rxxxx.INST.OSN.BCxxxxxxxxx (7xxx 1/4" tape image file)
  3. No other files are required but any number may be added after the second
     file.


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB041 Pg001


_______________________MPx DEMON TAPE BOOT INFORMATION________________________

DEMON tape images are identified as follows:

  (DISK).Rxxxx.INST.OS3.ADxxxxxxxxx
               ---- --- ::---------                                          
                 :   :  ::   :                                               
                 :   :  ::   * - release level not included n.6G & later OS
                 :   :  ::                                                   
                 :   :  :* - C=1/4" tape; D=1/2" tape; V=disk
                 :   :  :                                                    
                 :   :  * - A=9xxx (or 810) tape; B=7xxx/8xxx tape; U=disk
                 :   :      C= Advanced Series; X=filler for systems without
                 :   :      diagnostics n.6G & later
                 :   :                                                       
                 :   * - will be DEMON for n.6G and later OS                 
                 :                                                           
                 * - will be DIAG for n.6G & later releases


* To make a bootable 8xxx/9xxx 1/2" DEMON tape place files on tape as follows:

  1. .Rxxxx.INST/DIAG.OS3/DEMON.ADxxxxxxxxx  (9xxx DEMON 1/2" tape image file)
  2. .Rxxxx.INST/DIAG.OS3/DEMON.BDxxxxxxxxx  (7xxx/8xxx 1/2" tape image file
  3. All of the files in the OS3/DEMON node should be placed after the second
     file.

* To make a bootable 7xxx 1/4" DEMON tape place files on tape as follows:

  1. .Rxxxx.INST/DIAG.OS3/DEMON.ADxxxxxxxxx  (any file will work as the first
     file)
  2. .Rxxxx.INST/DIAG/DEMON.OS3.BCxxxxxxxxx  (7xxx 1/4" DEMON tape image file)
  3. All of the files in the OS3/DEMON node should be placed after the second
     file.

_______________________MPx REMIDI TAPE BOOT INFORMATION_______________________

Remidi requires various image files depending on system type.

810 systems require only one image file for disk and one for tape (requires
one boot tape, one file as the first file on the tape).

7xxx systems require two image files for disk and two for tape (requires two
boot tapes, one file as the second file on each tape).

8xxx systems require only one image file for disk and one for tape (requires
one boot tape, one file as the second file on the tape).

9xxx systems require two image files for disk and four for tape (requires four
boot tapes, one file as the first file on each tape).


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB041 Pg002


REMIDI image files are identified as follows:

  (DISK).Rxxxx.INST.REMIDI.ADAxxxxxx (9xxx 1/2" tape image A)
               ----        :::------                                         
                 :         :::  :                                            
                 :         :::  * - release level not included n.6G & later OS
                 :         :::                                               
                 :         ::* - A=tape image A or disk image A;B=tape image B;
                 :         ::    C=tape image C or disk image C;D=tape image D;
                 :         ::    M=MPC tests;number= part of revision level
                 :         ::    (7xxx/8xxx only)
                 :         ::                                                
                 :         :* - C=1/4" tape ;D=1/2" tape ;V=disk
                 :         :                                                 
                 :         * - A=9xxx (or 810); B=7xxx/8xxx; C=Advanced Series
                 :                                                           
                 * - will be DIAG for n.6G & later releases

* To make bootable 1/4" 7xxx REMIDI tapes, two tapes are required, place files
  as follows:

  I. Tape 1:

    1. .Rxxxx.INST/DIAG.REMIDI.BDMxxxxxx (any file will work as the first file)
    2. .Rxxxx.INST/DIAG.REMIDI.BC#xxxxxx  (7xxx 1/4" REMIDI - the # will be
                                          some numeric revision number)

 II. Tape 2:

    1. .Rxxxx.INST.REMIDI.BDMxxxxxx  (any file will work as the first file)
    2. .Rxxxx.INST.REMIDI.BCMxxxxxx  (7xxx 1/4" REMIDI MPC tests)

* To make a bootable 8xxx REMIDI tape place files as follows:

    1. .Rxxxx.INST.REMIDI.BDMxxxxxx  (any file will work as the first file)
    2. .Rxxxx.INST.REMIDI.BD#xxxxxx  (8xxx 1/2" REMIDI - the # will be some
                                      numeric revision number)

* To make bootable 9xxx REMIDI tapes, four tapes are required, place files as
  follows:

  I. Tape 1:

    1. .Rxxxx.INST.REMIDI.ADAxxxxxx  (9xxx REMIDI image A)

 II. Tape 2:

    1. .Rxxxx.INST.REMIDI.ADBxxxxxx  (9xxx REMIDI image B)

III. Tape 3:

    1. .Rxxxx.INST.REMIDI.ADCxxxxxx  (9xxx REMIDI image C)

 IV. Tape 4:

    1. .Rxxxx.INST.REMIDI.ADDxxxxxx  (9xxx REMIDI image D)

________ADVANCED SERIES SYSTEMS OS AND DIAGNOSTIC TAPE BOOT INFORMATION_______

The Advanced Series Systems will tape boot from the file selected by sense
switches. This allows a single tape to function as an OS tape and diagnostic
tape with DEMON and REMIDI included.                                         

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB041 Pg003


The following procedure will place the files in the correct order to allow the
same altload sense switch selections as standard load selections.            

The OS tape which came with the system (or with an OS upgrade) should be set up 
in this fashion.

  Sense Switches  2  3    FUNCTION WITH ALTLOAD
                  ----    ---------------------
                  O  O  - OS load
                  O  C  - OS load
                  C  O  - REMIDI (all modules menu selectable)
                  C  C  - DEMON

 1/2" bootable tape:

  file 1 - (DISK).Rzzzz.INST.OS.CT             - ASxx 1/2" OS image file
  file 2 - (DISK).Rzzzz.INST.OS.CT             - ASxx 1/2" OS.image file
  file 3 - (DISK).Rzzzz.INST/DIAG.REMIDI.CD    - ASxx 1/2" tape REMIDI file
  file 4 - (DISK).Rzzzz.INST/DIAG.OS3/DEMON.CD - ASxx 1/2" DEMON file
  file 5 thru file n - all of the files in OS3/DEMON node


 1/4" bootable tape:

  file 1 - (DISK).Rzzzz.INST.OS.AC             - ASxx 1/4" OS tape image file
  file 2 - (DISK).Rzzzz.INST.OS.AC             - ASxx 1/4" OS tape image file
  file 3 - (DISK).Rzzzz.INST/DIAG.REMIDI.CC    - ASxx 1/4" REMIDI tape file
  file 4 - (DISK).Rzzzz.INST/DIAG.OS3/DEMON.CC - ASxx 1/4" DEMON tape file
  file 5 thru file n - all of the files in OS3/DEMON node


ORIGINATOR: Norm Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB041 Pg004


FIB 00042                                                             09/13/88

                  *** MBA PCBA - 903617-001 (ASxx Systems) ***               

The following information applies to this part number:

                        MM892522 - MBA PCBA - 903617-001

There are no dip switches to be set on this PCBA.

_____________________________L.E.D.s______________________________

There are four LEDs on this PCBA numbered DS1 through DS4 from top to bottom,
which function as follows:

DS1 (red, upper) indicates a memory address or control line parity error while
    addressed by a CPU.
DS2 (red, 2nd from top) indicates a parity error on the memory data bus during a
    WRITE cycle from a CPU.
DS3 (red, 3rd from top) indicates either:
      (1) the MBA detected a memory parity error on a READ from a shared memory
          controller (there should be a parity error latched on a shared memory
          controller if this is true)
      (2) a CPU detected a memory parity error from the MBA on a READ.
DS4 (amber, 4th led from top) indicates a memory time-out occurred while
    accessing a shared memory controller.

______________________________SWITCHES_____________________________

 Pushbutton switch S1, mounted beneath the amber LED DS4, resets any led
 which may be lit.

______________________________JUMPERS______________________________

 JMP 1 consists of two posts located below S1. When the two posts are shorted
 together, all LEDs should light (must be reset with S1).

_____________________________TEST POINTS___________________________

 Test points 9 through 14 are available at the front edge of the PCBA.

 TP1 through TP4 = ground
 TP5 through TP8 are connected to LEDs DS1 through DS4
 TP9  = +5VB
 TP10 = +12V
 TP11 = +5V
 TP12 = -12V
 TP13 = -5V
 TP14 = ground


ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB042 Pg001


FIB 00043                                                             10/11/89

                               *** MCS/M PCBA ***

The following information applies to the MCS/M PCBA - P/N MM892535 - 903718-001.

The MCS/M PCBA has four megabytes of on board ECC memory which are hard
addressed as the FIRST FOUR MEG of main memory, it CANNOT be addressed to any
other range. If there is a problem with the on-board memory and there is no
spare MCS/M available, the on-board memory can be disabled by closing SW2
position 1 and re-addressing existing memory for the first four meg.

The MCS/M PCBA is supported only in Advanced Series systems.

___________________________________ L.E.D.s_____________________________________

There are six LEDs DS1 through DS6 from top to bottom which indicate the
following:

 DS1 (red, top LED)  indicates a memory address or control line parity error.
 DS2 (red, 2ND LED)  indicates a memory data parity error (at backplane).    
 DS3 (red, 3RD LED)  indicates a multibit memory error in the on-board memory.
 DS4 (amber, 4TH LED indicates a single bit memory error in the on-board memory.
 DS5 (red, 5TH LED)  indicates a memory parity error in the 4-way controller.
 DS6 (green, 6TH LED) indicates MCS/M passed self-test and is on-line.

__________________________________TEST POINTS___________________________________

 TP1 through TP4 = ground
 TP5 = +5V
 TP6 = +5VB
 TP7 = ground
 TP8 = +5V
 TP9 = +5VB
 TP10 = +12V
 TP11 = -12V
 TP12 = 160 NS clock
 TP13 = 80 NS clock

____________________________________SWITCHES____________________________________

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------
SW1 is a push button switch located at the top of the PCBA for reseting LEDs.

Set Switch 2, SW-2, located on the front edge of the PCBA as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
 Positions 1.......... - - - - - - - O ...on board memory ENABLED
 Positions 1.......... - - - - - - - C ...on board memory DISABLED

 Position 2........... - - - - - - O - ...Z80 selftest info on J3 for Y-bus disp
 Position 2........... - - - - - - C - ...Memory err info on J3 for Y-bus disp

 Position 3........... - - - - - O - - ...port 0 set for 7 bit (before OS load)
 Position 3........... - - - - - C - - ...port 0 set for 8 bit (before OS load)
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB043 Pg001


                       Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
 Position 4........... - - - - O - - - ...MCS/M "on line"
 Position 4........... - - - - C - - - ...MCS/M in diagnostic/monitor mode

 Positions 8,7,6,5.... X X X X - - - - ...select "off line" tests (normally set
                                          to OPEN)

 NORMAL SW SETTING.... O O O O O O O O ...on line operation with mem enabled

 ...............................................................................

Set Switch 3 SW-3, located at 9T as follows:

                      Switch  Positions
                       8 7 6 5 4 3 2 1
                       ---------------
 Positions 1 & 2...... - - - - - - O O ...port 0 set for 1200 BD (before OS LD)
 Positions 1.& 2...... - - - - - - O C ...port 0 set for  300 BD (before OS LD)
 Positions 1 & 2...... - - - - - - C O ...port 0 set for 9600 BD (before OS LD)
 Positions 1 & 2...... - - - - - - C C ...port 0 set for 19.2 KB (before OS LD)

 Position 3........... - - - - - C - - ...normal setting (repair center use)

 Position 4........... - - - - O - - - ...system clock normal
 Position 4........... - - - - C - - - ...system clock is 3% fast (margined)

 Position 5........... - - - X - - - - ...spare position

 Position 6........... - - O - - - - - ...ASxx memory cycle time

 Position 7........... - O - - - - - - ...normal on-line setting

 Position 8........... C - - - - - - - ...system type=ASxx

 NORMAL SETTING ASXX.. C O O O O C C O ...normal ASxx on-line operation

_____________________________________NOTES______________________________________

The clock margin switch (SW3 position 4) MUST ALWAYS be open (normal) except
when running diagnostic tests.

The setting for switch 3 position 6 has changed (now open), if set according to
the old setting (closed) it may cause problems with DMAII PCBAs.

ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB043 Pg002


FIB 00044                                                             12/01/89

                         *** NEP PCBA ASxx Systems ***

 The following information applies to the NEP PCBA P/N MM892528 - 903705-001.


______________________________L.E.D.s______________________________

There are six LEDs, mounted at the top front, numbered DS1 through DS6 from top
to bottom, which indicate the following:

DS1 (red, upper) indicates a memory address bus or control parity error was
    detected from this CPU (NEP).
DS2 (red, 2ND LED) indicates a memory parity error.
DS3 (amber, 3RD LED) indicates a memory timeout error.
DS4 (red, 4TH LED) indicates a WCS parity error.
DS5 (amber, 5TH LED) indicates a CPU clock hold.
DS6 (green, 6TH LED) indicates this CPU is on-line.

____________________________________SWITCHES____________________________________

There are no dip switches to be set on this PCBA.

Switch - S1 is a pushbutton type, mounted between DS4 and DS5, which functions
to reset the error LEDs.

Switch - SW2 is a two position toggle switch located on the center front of the
PCBA which functions as follows:

    DOWN = CPU is enabled
    UP   = CPU is disabled

__________________________________TEST POINTS___________________________________

  TP1 through TP4 = ground
  TP5 = +5V (use for supply voltage to Y BUS display)
  TP6 through TP9 - tied to LEDs DS1 through DS4


ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB044 Pg001


FIB 00045                                                             09/13/88

                       *** STACHE PCBA - ASxx Systems ***

The STACHE PCBA is an optional CPU board containing caches which enhance CPU
peformance. The CACHE PCBA can be completely disabled by removing the foreplanes
without removing the STACHE from the backplane (and having to shuffle PCBAs to
eliminated blank slots).

______________________________________LEDS______________________________________

There are seven LEDs numbered DS1 through DS7 from top to bottom which indicate
the following:

 DS1 (red, upper) indicates one of the following has occurred:

     1. memory data parity error (main memory only, not shared memory)
     2. memory address bus parity error
     3. memory control parity error

 DS2 (red, 2ND LED) indicates an RSTK parity error.
 DS3 (amber, 3RD LED) indicates a DATA CACHE parity error (this error is not
     latched, is reset after the OS is notified).
 DS4 (amber, 4TH LED) indicates a CODE CACHE parity error (this error is not
     latched, is reset after the OS is notified).
 DS5 (green, 5TH LED) indicates the RSTK is enabled.
 DS6 (green, 6TH LED) indicates the DATA CACHE is enabled.
 DS7 (green, 7TH LED) indicates the CODE CACHE is enabled.

____________________________________SWITCHES____________________________________

There are no DIP switches on this PCBA.

Switch SW1 is a momentary action push-button switch located below DS4 and
functions to reset the error LEDs.

Switch SW2 is a two position toggle switch located below DS5 and functions as
follows:

   UP   = RSTK disabled
   DOWN = RSTK enabled

Switch SW3 is a two position toggle switch located below DS6 and functions as
follows:

   UP   = DATA CACHE disabled
   DOWN = DATA CACHE enabled

Switch SW4 is a two position toggle switch located below DS7 and functions as
follows:

   UP   = CODE CACHE disabled
   DOWN = CODE CACHE enabled


                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB045 Pg001


__________________________________TEST POINTS___________________________________
  TP1 through TP6 = ground
  TP7 tied to DS3
  TP8 tied to DS2
  TP9 tied to DS4
  TP10 tied to DS6
  TP11 tied to DS7
  TP12 tied to DS5
  TP13 tied to DS1

ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB045 Pg002


FIB 00046                                                             06/26/89

                     *** DMA III PCBA - (ASxx Systems) ***

The following information applies to the DMA III PCBA P/N MM892527 - 903679-001.

The DMA III controller has a built in SMD interface and no longer requires the
SMDI (or SMDII) PCB to change interface levels. This limits it to the drives
that utilize the SMD interface (P314, F621), other drive types will require the
use of existing DMAI or DMAII PCBAs.

____________________________________SWITCHES____________________________________

            -----------------SWITCH SETTING LEGEND-----------------
            :                                                     :          
            : C = Closed or On    O = Open or Off    X = Not Used :
            -------------------------------------------------------

SW1 is a push button switch located below LED DS4 and resets the error LEDs.
Additionally it,functions as a lamp test if it is pressed simultaneously with
the LOAD or ALTLOAD switches.

 ...............................................................................

 Set the Printer Configuration switch - SW2 (at location 5X) as follows:

                                      PRINTER 1 : PRINTER 0
   PRINTER                          SW2  Switch : Positions
    TYPE                        :9:----:8:7:6:5 : 4:3:2:1:
--------------------------------:-:----:-:-:-:--:--:-:-:-:
Model 4201 Matrix               :O:----:C:O:O:O : C:O:O:O:
--------------------------------:-:----:-:-:-:--:--:-:-:-:
Model 4209, 4220, 4221 Band     :O:----:O:O:O:C : O:O:O:C:
--------------------------------:-:----:-:-:-:--:--:-:-:-:
Model 4214 DMP                  :O:----:C:O:C:O : C:O:C:O:
----------------------------------------------------------                   
           All other settings are undefined                                  
----------------------------------------------------------                   

SW2, position 9 must be in the OPEN position for normal operation. This switch
is placed in the CLOSED position to cause the DMA to self-test continuously.

 ...............................................................................

 Set the Disk Drive Configuration switches - SW3 (location 4T), for Drives 1 and
0, and SW4 (location 4U), for Drives 2 and 3, as follows:

                         SW3 = DISK 1 : SW3 = DISK 0
    DISK                 SW4 = DISK 3 : SW4 = DISK 2
    TYPE              :9:----:8:7:6:5 : 4:3:2:1:
----------------------:-:----:-:-:-:--:--:-:-:-:
Model 4510 8" P314    :O:----:O:O:O:O : O:O:O:O:
----------------------:-:----:-:-:-:--:--:-:-:-:
Model      8" F621    :O:----:C:O:O:O : C:O:O:O:
------------------------------------------------                             
ALL OTHER SWITCH SETTINGS ARE UNDEFINED
------------------------------------------------                             

SW3 position 9 and SW4 position 9 must be in the OPEN position for normal
on-line operation.
                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB046 Pg001


________________________________DISK TERMINATION________________________________
Data and clock lines from the disks require termination at the DMA III PCBA
using a 0 ohm DIP pack (or jumper pack) P/N 325047-002 at the locations shown
below.

Both P314 and F621 drives use the same termination (0 ohm), newer artwork DMAIII
PCBAs may have these hardwired in. If a terminator pack location has a socket
there must be a 0 ohm DIP pack inserted in it (if there is a corresponding disk
drive installed).


   DISK 0's terminator plugs into location 8KK
   DISK 1's terminator plugs into location 8DD
   DISK 2's terminator plugs into location 8FF
   DISK 3's terminator plugs into location 8AA

Disks may be mixed as long as the appropriate terminators are installed.


____________________________________JUMPERS_____________________________________
Jumpers JMP1 and JMP2 are for factory use only and should be removed. Their
functions if installed are as follows:

                 JMP1 - drives 0/1 spin continuously
                 JMP2 - drives 2/3 spin continuously

______________________________________LEDS______________________________________

There are four LEDs numbered DS1 through DS4 from top to bottom which indicate
the following:

  DS1 (red, upper) = main memory parity error
  DS2 (amber, 2ND) = main memory timeout error
  DS3 (green, 3RD) = on-line and passed self test
  DS4 (red, 4TH)   = parity error in onboard memory

_____________________________________NOTES______________________________________

1. The DMA III controller MUST be installed in the first available card slot to
   the right of the right-most cpu PCBA.

2. There is no address switch for the DMA III PCBA.

ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB046 Pg002


FIB 00047                                                             09/19/88

    *** 1,x,y,5 & 1,x,y,6 MEM Pty & Timeout Dump Analysis - ASxx Systems ***

This FIB applies only the ASxx systems, for memory dumps on MPx systems consult
FIB 37 in this handbook.

Dumps with 1,x,y,5 values indicate memory timeout failures and dumps with
1,x,y,6 values indicate memory parity failures.

The x value is a combination of CPU number plus the 16 megabyte bank address
the failure occurred in.

The y value is the failing address within the 16 megabyte bank (in 64 KB
increments). Y can be a value between 0 and 255. The y value will in most cases
not fall on a boundary shown in the following chart but will instead fall within
one of the address ranges indicated.                                         

Find the x value in the following chart and then find the range containing the .
y value within the x value range to locate the failing PCBA (or location
reported as failing). EX. dump = 1,9,62,5 - memory timeout, ON CPU 2, in main
memory PCBA addressed for 16-19 meg.

                FAILING                                FAILING               
 X      Y     PCB/LOCATION    CPU       X      Y     PCB/LOCATION    CPU     
--- -------- ---------------- ----     --- -------- ---------------- ----    
0...0-63.....0-3 MEG MEMORY...CPU0     0...222-222..CONTROLLER # 49..CPU0
0...64-127...4-7 MEG MEMORY...CPU0     0...223-223..CONTROLLER # 48..CPU0
0...128-191..8-11 MEG MEMORY..CPU0     0...224-224..CONTROLLER # 47..CPU0
0...192-192..CONTROLLER # 15..CPU0     0...225-225..CONTROLLER # 46..CPU0
0...193-193..CONTROLLER # 14..CPU0     0...226-226..CONTROLLER # 45..CPU0
0...194-194..CONTROLLER # 13..CPU0     0...227-227..CONTROLLER # 44..CPU0
0...195-195..CONTROLLER # 12..CPU0     0...228-228..CONTROLLER # 43..CPU0
0...196-196..CONTROLLER # 11..CPU0     0...229-229..CONTROLLER # 42..CPU0
0...197-197..CONTROLLER # 10..CPU0     0...230-230..CONTROLLER # 41..CPU0
0...198-198..CONTROLLER # 9...CPU0     0...231-231..CONTROLLER # 40..CPU0
0...199-199..CONTROLLER # 8...CPU0     0...232-232..CONTROLLER # 39..CPU0
0...200-200..CONTROLLER # 7...CPU0     0...233-233..CONTROLLER # 38..CPU0
0...201-201..CONTROLLER # 6...CPU0     0...234-234..CONTROLLER # 37..CPU0
0...202-202..CONTROLLER # 5...CPU0     0...235-235..CONTROLLER # 36..CPU0
0...203-203..CONTROLLER # 4...CPU0     0...236-236..CONTROLLER # 35..CPU0
0...204-204..CONTROLLER # 3...CPU0     0...237-237..CONTROLLER # 34..CPU0    
0...205-205..CONTROLLER # 2...CPU0     0...238-238..CONTROLLER # 33..CPU0
0...206-206..CONTROLLER # 1...CPU0     0...239-239..CONTROLLER # 32..CPU0
0...207-207..MCS (BD # 0).....CPU0     0...240-240..VCON # 0.........CPU0
0...208-208..CONTROLLER # 63..CPU0     0...241-241..VCON # 1.........CPU0
0...209-209..CONTROLLER # 62..CPU0     0...242-242..VCON # 2.........CPU0
0...210-210..CONTROLLER # 61..CPU0     0...243-243..VCON # 3.........CPU0
0...211-211..CONTROLLER # 60..CPU0     0...244-244..VCON # 4.........CPU0
0...212-212..CONTROLLER # 59..CPU0     0...245-245..VCON # 5.........CPU0
0...213-213..CONTROLLER # 58..CPU0     0...246-246..VCON # 6.........CPU0
0...214-214..CONTROLLER # 57..CPU0     0...247-247..VCON # 7.........CPU0
0...215-215..CONTROLLER # 56..CPU0     0...248-248..VCON # 8.........CPU0
0...216-216..CONTROLLER # 55..CPU0     0...249-249..VCON # 9.........CPU0
0...217-217..CONTROLLER # 54..CPU0     0...250-250..VCON # 10........CPU0
0...218-218..CONTROLLER # 53..CPU0     0...251-251..VCON # 11........CPU0
0...219-219..CONTROLLER # 52..CPU0     0...252-252..VCON # 12........CPU0
0...220-220..CONTROLLER # 51..CPU0     0...253-253..VCON # 13........CPU0
0...221-221..CONTROLLER # 50..CPU0     0...254-254..VCON # 14........CPU0

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB047 Pg001


                FAILING                                FAILING               
 X      Y     PCB/LOCATION    CPU       X      Y     PCB/LOCATION    CPU     
--- -------- ---------------- ----     --- -------- ---------------- ----    
0...255-255..GLOBALS/KEYBDS...CPU0     4...231-231..CONTROLLER # 40..CPU1
1...0-63.....16-19 MEG MEMORY.CPU0     4...232-232..CONTROLLER # 39..CPU1
1...64-127...20-23 MEG MEMORY.CPU0     4...233-233..CONTROLLER # 38..CPU1
1...128-191..24-27 MEG MEMORY.CPU0     4...234-234..CONTROLLER # 37..CPU1
1...192-255..UNUSED...........CPU0     4...235-235..CONTROLLER # 36..CPU1
2...0-63.....32-35 MEG MEMORY.CPU0     4...236-236..CONTROLLER # 35..CPU1
2...64-127...36-39 MEG MEMORY.CPU0     4...237-237..CONTROLLER # 34..CPU1
2...128-191..40-43 MEG MEMORY.CPU0     4...238-238..CONTROLLER # 33..CPU1
2...192-255..UNUSED...........CPU0     4...239-239..CONTROLLER # 32..CPU1
3...0-63.....48-51 MEG MEMORY.CPU0     4...240-240..VCON # 0.........CPU1
3...64-127...52-55 MEG MEMORY.CPU0     4...241-241..VCON # 1.........CPU1
3...128-191..56-59 MEG MEMORY.CPU0     4...242-242..VCON # 2.........CPU1
3...192-239..UNUSED...........CPU0     4...243-243..VCON # 3.........CPU1
3...240-255..CPU WCSs.........CPU0     4...244-244..VCON # 4.........CPU1
4...0-63.....0-3 MEG MEMORY...CPU1     4...245-245..VCON # 5.........CPU1
4...64-127...4-7 MEG MEMORY...CPU1     4...246-246..VCON # 6.........CPU1
4...128-191..8-11 MEG MEMORY..CPU1     4...247-247..VCON # 7.........CPU1
4...192-192..CONTROLLER # 15..CPU1     4...248-248..VCON # 8.........CPU1    
4...193-193..CONTROLLER # 14..CPU1     4...249-249..VCON # 9.........CPU1    
4...194-194..CONTROLLER # 13..CPU1     4...250-250..VCON # 10........CPU1
4...195-195..CONTROLLER # 12..CPU1     4...251-251..VCON # 11........CPU1
4...196-196..CONTROLLER # 11..CPU1     4...252-252..VCON # 12........CPU1
4...197-197..CONTROLLER # 10..CPU1     4...253-253..VCON # 13........CPU1
4...198-198..CONTROLLER # 9...CPU1     4...254-254..VCON # 14........CPU1    
4...199-199..CONTROLLER # 8...CPU1     4...255-255..GLOBALS/KEYBDS...CPU1
4...200-200..CONTROLLER # 7...CPU1     5...0-63.....16-19 MEG MEMORY.CPU1
4...201-201..CONTROLLER # 6...CPU1     5...64-127...20-23 MEG MEMORY.CPU1
4...202-202..CONTROLLER # 5...CPU1     5...128-191..24-27 MEG MEMORY.CPU1
4...203-203..CONTROLLER # 4...CPU1     5...192-255..UNUSED...........CPU1
4...204-204..CONTROLLER # 3...CPU1     6...0-63.....32-35 MEG MEMORY.CPU1
4...205-205..CONTROLLER # 2...CPU1     6...64-127...36-39 MEG MEMORY.CPU1
4...206-206..CONTROLLER # 1...CPU1     6...128-191..40-43 MEG MEMORY.CPU1
4...207-207..MCS (BD # 0).....CPU1     6...192-255..UNUSED...........CPU1
4...208-208..CONTROLLER # 63..CPU1     7...0-63.....48-51 MEG MEMORY.CPU1
4...209-209..CONTROLLER # 62..CPU1     7...64-127...52-55 MEG MEMORY.CPU1
4...210-210..CONTROLLER # 61..CPU1     7...128-191..56-59 MEG MEMORY.CPU1
4...211-211..CONTROLLER # 60..CPU1     7...192-239..UNUSED...........CPU1
4...212-212..CONTROLLER # 59..CPU1     7...240-255..CPU WCSs.........CPU1
4...213-213..CONTROLLER # 58..CPU1     8...0-63.....0-3 MEG MEMORY...CPU2
4...214-214..CONTROLLER # 57..CPU1     8...64-127...4-7 MEG MEMORY...CPU2
4...215-215..CONTROLLER # 56..CPU1     8...128-191..8-11 MEG MEMORY..CPU2
4...216-216..CONTROLLER # 55..CPU1     8...192-192..CONTROLLER # 15..CPU2
4...217-217..CONTROLLER # 54..CPU1     8...193-193..CONTROLLER # 14..CPU2
4...218-218..CONTROLLER # 53..CPU1     8...194-194..CONTROLLER # 13..CPU2
4...219-219..CONTROLLER # 52..CPU1     8...195-195..CONTROLLER # 12..CPU2
4...220-220..CONTROLLER # 51..CPU1     8...196-196..CONTROLLER # 11..CPU2
4...221-221..CONTROLLER # 50..CPU1     8...197-197..CONTROLLER # 10..CPU2
4...222-222..CONTROLLER # 49..CPU1     8...198-198..CONTROLLER # 9...CPU2
4...223-223..CONTROLLER # 48..CPU1     8...199-199..CONTROLLER # 8...CPU2
4...224-224..CONTROLLER # 47..CPU1     8...200-200..CONTROLLER # 7...CPU2
4...225-225..CONTROLLER # 46..CPU1     8...201-201..CONTROLLER # 6...CPU2
4...226-226..CONTROLLER # 45..CPU1     8...202-202..CONTROLLER # 5...CPU2
4...227-227..CONTROLLER # 44..CPU1     8...203-203..CONTROLLER # 4...CPU2
4...228-228..CONTROLLER # 43..CPU1     8...204-204..CONTROLLER # 3...CPU2
4...229-229..CONTROLLER # 42..CPU1     8...205-205..CONTROLLER # 2...CPU2
4...230-230..CONTROLLER # 41..CPU1     8...206-206..CONTROLLER # 1...CPU2

                            (continued on next page)


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB047 Pg002


                FAILING                                FAILING               
 X      Y     PCB/LOCATION    CPU       X      Y     PCB/LOCATION    CPU     
--- -------- ---------------- ----     --- -------- ---------------- ----    
8...207-207..MCS (BD # 0).....CPU2     11..0-63.....48-51 MEG MEMORY.CPU2
8...208-208..CONTROLLER # 63..CPU2     11..64-127...52-55 MEG MEMORY.CPU2
8...209-209..CONTROLLER # 62..CPU2     11..128-191..56-59 MEG MEMORY.CPU2
8...210-210..CONTROLLER # 61..CPU2     11..192-239..UNUSED...........CPU2
8...211-211..CONTROLLER # 60..CPU2     11..240-255..CPU WCSs.........CPU2
8...212-212..CONTROLLER # 59..CPU2     12..0-63.....0-3 MEG MEMORY...CPU3
8...213-213..CONTROLLER # 58..CPU2     12..64-127...4-7 MEG MEMORY...CPU3
8...214-214..CONTROLLER # 57..CPU2     12..128-191..8-11 MEG MEMORY..CPU3
8...215-215..CONTROLLER # 56..CPU2     12..192-192..CONTROLLER # 15..CPU3
8...216-216..CONTROLLER # 55..CPU2     12..193-193..CONTROLLER # 14..CPU3
8...217-217..CONTROLLER # 54..CPU2     12..194-194..CONTROLLER # 13..CPU3
8...218-218..CONTROLLER # 53..CPU2     12..195-195..CONTROLLER # 12..CPU3
8...219-219..CONTROLLER # 52..CPU2     12..196-196..CONTROLLER # 11..CPU3
8...220-220..CONTROLLER # 51..CPU2     12..197-197..CONTROLLER # 10..CPU3
8...221-221..CONTROLLER # 50..CPU2     12..198-198..CONTROLLER # 9...CPU3
8...222-222..CONTROLLER # 49..CPU2     12..199-199..CONTROLLER # 8...CPU3
8...223-223..CONTROLLER # 48..CPU2     12..200-200..CONTROLLER # 7...CPU3
8...224-224..CONTROLLER # 47..CPU2     12..201-201..CONTROLLER # 6...CPU3
8...225-225..CONTROLLER # 46..CPU2     12..202-202..CONTROLLER # 5...CPU3
8...226-226..CONTROLLER # 45..CPU2     12..203-203..CONTROLLER # 4...CPU3
8...227-227..CONTROLLER # 44..CPU2     12..204-204..CONTROLLER # 3...CPU3
8...228-228..CONTROLLER # 43..CPU2     12..205-205..CONTROLLER # 2...CPU3
8...229-229..CONTROLLER # 42..CPU2     12..206-206..CONTROLLER # 1...CPU3
8...230-230..CONTROLLER # 41..CPU2     12..207-207..MCS (BD # 0).....CPU3
8...231-231..CONTROLLER # 40..CPU2     12..208-208..CONTROLLER # 63..CPU3
8...232-232..CONTROLLER # 39..CPU2     12..209-209..CONTROLLER # 62..CPU3    
8...233-233..CONTROLLER # 38..CPU2     12..210-210..CONTROLLER # 61..CPU3
8...234-234..CONTROLLER # 37..CPU2     12..211-211..CONTROLLER # 60..CPU3
8...235-235..CONTROLLER # 36..CPU2     12..212-212..CONTROLLER # 59..CPU3
8...236-236..CONTROLLER # 35..CPU2     12..213-213..CONTROLLER # 58..CPU3
8...237-237..CONTROLLER # 34..CPU2     12..214-214..CONTROLLER # 57..CPU3
8...238-238..CONTROLLER # 33..CPU2     12..215-215..CONTROLLER # 56..CPU3
8...239-239..CONTROLLER # 32..CPU2     12..216-216..CONTROLLER # 55..CPU3
8...240-240..VCON # 0.........CPU2     12..217-217..CONTROLLER # 54..CPU3
8...241-241..VCON # 1.........CPU2     12..218-218..CONTROLLER # 53..CPU3
8...242-242..VCON # 2.........CPU2     12..219-219..CONTROLLER # 52..CPU3
8...243-243..VCON # 3.........CPU2     12..220-220..CONTROLLER # 51..CPU3
8...244-244..VCON # 4.........CPU2     12..221-221..CONTROLLER # 50..CPU3
8...245-245..VCON # 5.........CPU2     12..222-222..CONTROLLER # 49..CPU3
8...246-246..VCON # 6.........CPU2     12..223-223..CONTROLLER # 48..CPU3
8...247-247..VCON # 7.........CPU2     12..224-224..CONTROLLER # 47..CPU3
8...248-248..VCON # 8.........CPU2     12..225-225..CONTROLLER # 46..CPU3
8...249-249..VCON # 9.........CPU2     12..226-226..CONTROLLER # 45..CPU3
8...250-250..VCON # 10........CPU2     12..227-227..CONTROLLER # 44..CPU3
8...251-251..VCON # 11........CPU2     12..228-228..CONTROLLER # 43..CPU3
8...252-252..VCON # 12........CPU2     12..229-229..CONTROLLER # 42..CPU3
8...253-253..VCON # 13........CPU2     12..230-230..CONTROLLER # 41..CPU3
8...254-254..VCON # 14........CPU2     12..231-231..CONTROLLER # 40..CPU3
8...255-255..GLOBALS/KEYBDS...CPU2     12..232-232..CONTROLLER # 39..CPU3
9...0-63.....16-19 MEG MEMORY.CPU2     12..233-233..CONTROLLER # 38..CPU3
9...64-127...20-23 MEG MEMORY.CPU2     12..234-234..CONTROLLER # 37..CPU3
9...128-191..24-27 MEG MEMORY.CPU2     12..235-235..CONTROLLER # 36..CPU3
9...192-255..UNUSED...........CPU2     12..236-236..CONTROLLER # 35..CPU3
10..0-63.....32-35 MEG MEMORY.CPU2     12..237-237..CONTROLLER # 34..CPU3
10..64-127...36-39 MEG MEMORY.CPU2     12..238-238..CONTROLLER # 33..CPU3
10..128-191..40-43 MEG MEMORY.CPU2     12..239-239..CONTROLLER # 32..CPU3
10..192-255..UNUSED...........CPU2     12..240-240..VCON # 0.........CPU3

                            (continued on next page)

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB047 Pg003


                FAILING                                FAILING               
 X      Y     PCB/LOCATION    CPU       X      Y     PCB/LOCATION    CPU     
--- -------- ---------------- ----     --- -------- ---------------- ----    
12..241-241..VCON # 1.........CPU3
12..242-242..VCON # 2.........CPU3
12..243-243..VCON # 3.........CPU3
12..244-244..VCON # 4.........CPU3
12..245-245..VCON # 5.........CPU3
12..246-246..VCON # 6.........CPU3
12..247-247..VCON # 7.........CPU3
12..248-248..VCON # 8.........CPU3
12..249-249..VCON # 9.........CPU3
12..250-250..VCON # 10........CPU3
12..251-251..VCON # 11........CPU3
12..252-252..VCON # 12........CPU3
12..253-253..VCON # 13........CPU3
12..254-254..VCON # 14........CPU3
12..255-255..GLOBALS/KEYBDS...CPU3                                           
13..0-63.....16-19 MEG MEMORY.CPU3
13..64-127...20-23 MEG MEMORY.CPU3                                           
13..128-191..24-27 MEG MEMORY.CPU3
13..192-255..UNUSED...........CPU3
14..0-63.....32-35 MEG MEMORY.CPU3                                           
14..64-127...36-39 MEG MEMORY.CPU3
14..128-191..40-43 MEG MEMORY.CPU3
14..192-255..UNUSED...........CPU3
15..0-63.....48-51 MEG MEMORY.CPU3
15..64-127...52-55 MEG MEMORY.CPU3
15..128-191..56-59 MEG MEMORY.CPU3
15..192-239..UNUSED...........CPU3
15..240-255..CPU WCSs.........CPU3


ORIGINATOR: N. Jones


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB047 Pg004






FIB 00048                  MAI COMPANY CONFIDENTIAL                   02/18/92

           *** System Hang/Dump Recovery Procedures  [ WPSF 506 ] ***

This procedure should be followed after a system dump or a system load due to a
system hang.

Step 1) After the dump is completed, reload system and enter a Type II load.
        Choose the option DISKANALYZER. The DISKANALYZER main menu will appear.

Step 2) First check the directory and the available space. Choose option 6
        "CHECK DIRECTORY AND AVAILABLE SPACE FILES". Each family needs to be
        checked. If errors are reported, that directory and available space will
        need to be reconstructed (this operation is explained in step 4).

Step 3) Check for overlapping or missing space by choosing option 5 "DISK SPACE
        USAGE" (SPACE MISSING/OVERLAPPING)". If the option reports that space is
        missing, then the available space file must be reconstructed to reclaim.
        that space. If 2 or more files are overlapping, then certain actions
        must be taken to resolve the conflict. To fix this, do the following
        steps:

        A) Make a backup of the system (just in case).

        B) Only one of the overlapping files can exist in that filespace. First
           you have to determine which files are not the proper owner. Use
           option 2 "VALIDATE/RECONSTRUCT A FILE". It is possible that the files
           are not bad and can be saved by copying the files to a new location
           (another disk or tape) and deleting its source. If not, then delete
           the files that do not own the filespace.

        C) The available space file will have to be reconstructed. (This is
           explained in step 4).

        D) After reconstruction, recheck the directory and available space   
           files using options 5 and 6. Repeat steps B, C, D as necessary.

Step 4) Steps 2 and 3 will identify any problems with the directory and the
        available space files. If the files are reported to have problems, they
        must be reconstructed before processing can continue. If both the
        directory and the available space must be reconstructed, the available
        space file MUST be reconstructed first. To reconstruct the available
        space file, choose option 9 "RECONSTRUCT AVAILABLE SPACE FILES (TYPE II
        LOAD)". To reconstruct the directory, choose option 10 "RECONSTRUCT
        DIRECTORY FILE (TYPE II LOAD)".

Step 5) Next, the files must be validated. To do this use option 1 "FIND FILES
        THAT LACK INTEGRITY". This option will find any files that have the
        integrity flag set. This option does not check the file structure, only
        the integrity flag. If persistant problems with file corruption occur,
        then use option 3 "VALIDATE FILES". This option provides a very thorough
        check of each file's internal structure.

Step 6) The files found to have problems from step 5 must be fixed. Files
        critical to the operation of the system and the application should be
        fixed using option 2 "VALIDATE/RECONSTRUCT A FILE". Files that are not
        critical should be reconstructed in a Type I load. This will allow you
        to start reconstruction on multiple terminals.


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB048 Pg001


Step 7) Enter a Type I load. Reconstruct the files not reconstructed in step 6.
        Keyed (DIRECT, SORT, MULTIKEY) files should be reconstructed FIRST using
        the RECONSTRUCT utility. This utility is faster than DISKANALYZER. If
        RECONSTRUCT cannot fix the file, then DISKANALYZER option 2 must be used
        to repair the file. Serial and indexed files are repaired using      
        DISKANALYZER.


ORIGINATOR: NSC


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB048 Pg002



FIB 00049                  MAI COMPANY CONFIDENTIAL                   06/23/92

                 *** MODE SENSE PARAMETERS FOR SCSI DRIVES ***


 A.  SCSI DISK DRIVE (M280)

      Unit Number: 32            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#XT-3280         Product Rev.:#42343032

      Num of Cylinders:*1224       Descriptor Fields:#5 12 0 15 14 1223 13 0
      Number of Heads :*15         Fmt Sector Cap.  : 257040
      Blocks per Track:*14         Last Track Sec. 0: 254397
      Bytes per Block :*1024       Usable Sectors   :#254425                 
      Raw Block Cap.  :#257040     Usable Blocks    :#254426

      Mode Sense/Select Pages:#5800 Drive Mode Page 1: 2500   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#92     Interleave:#1
      Write Precomp Cylinder :#0             Number of Tracks per Zone  :*15
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*2
      Verify-by-Bytes :#F                    Alternate Tracks per Volume:#2
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000


      Note: * = changeable field
            # = not changeable for this drive type


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB049 Pg001


 B.  SCSI DISK DRIVE (M380)

      Unit Number: 35            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#XT-8380S        Product Rev.:#00000000

      Num of Cylinders:*1632       Descriptor Fields:#1 0 0 8 28 1631 43 0
      Number of Heads :*8          Fmt Sector Cap.  : 365568
      Blocks per Track:*28         Last Track Sec. 0: 356065
      Bytes per Block :*1024       Usable Sectors   :#356093
      Raw Block Cap.  :#365568     Usable Blocks    :#356094

      Mode Sense/Select Pages:#7800 Drive Mode Page 1: 2100   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#0      Interleave:#1
      Write Precomp Cylinder :#0             Number of Tracks per Zone  :*8
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*5
      Verify-by-Bytes :#F                    Alternate Tracks per Volume:*24
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000


      Note: * = changeable field
            # = not changeable for this drive type


 C.  SCSI DISK DRIVE (M760)

      Unit Number: 22            Device Type : 10        Variance    : 32    
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#XT-8760S        Product Rev.:#00000000

      Num of Cylinders:*1632       Descriptor Fields:#1 0 0 15 28 1631 26 0
      Number of Heads :*15         Fmt Sector Cap.  : 685440
      Blocks per Track:*28         Last Track Sec. 0: 674761
      Bytes per Block :*1024       Usable Sectors   :#674789
      Raw Block Cap.  :#685440     Usable Blocks    :#674790

      Mode Sense/Select Pages:#7800 Drive Mode Page 1: 2100   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#0      Interleave:#1
      Write Precomp Cylinder :#0             Number of Tracks per Zone  :*15
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*5
      Verify-by-Bytes :#F                    Alternate Tracks per Volume:*45 
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000

      Note: * = changeable field
            # = not changeable for this drive type


 D.  SCSI DISK DRIVE (M169)

      Unit Number: 35            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#ADP-46          Product Rev.:#30303030

      Num of Cylinders:*1224        Descriptor Fields:#5 3 0 15 8 1223 13 0  
      Number of Heads :*15          Fmt Sector Cap.  : 156060

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB049 Pg002


      Blocks per Track:*17          Last Track Sec. 0: 145424
      Bytes per Block :*512         Usable Sectors   :#145440
      Raw Block Cap.  :*312120      Usable Blocks    :#290880

      Mode Sense/Select Pages:#1800 Drive Mode Page 1: 0000   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#83     Interleave:#1
      Write Precomp Cylinder :*1224          Number of Tracks per Zone  :#1
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*0
      Verify-by-Bytes :*F                    Alternate Tracks per Volume:*210
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000


      Note: * = changeable field
            # = not changeable for this drive type


 E.  SCSI DISK DRIVE (M93)

      Unit Number: 35            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#ADP-46          Product Rev.:#30303030

      Num of Cylinders:*918         Descriptor Fields:#5 3 0 15 8 1223 13 0
      Number of Heads :*11          Fmt Sector Cap.  : 85833
      Blocks per Track:*17          Last Track Sec. 0: 85620
      Bytes per Block :*512         Usable Sectors   :#85636
      Raw Block Cap.  :*171666      Usable Blocks    :#171272

      Mode Sense/Select Pages:#1800 Drive Mode Page 1: 0000   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#83     Interleave:#1
      Write Precomp Cylinder :*918           Number of Tracks per Zone  :#1
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*0
      Verify-by-Bytes :*F                    Alternate Tracks per Volume:*165
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000


      Note: * = changeable field
            # = not changeable for this drive type

 F.  SCSI DISK DRIVE (M126)

      Unit Number: 35            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#ADP-46          Product Rev.:#30303030

      Num of Cylinders:*918         Descriptor Fields:#5 3 0 15 8 1223 13 0
      Number of Heads :*15          Fmt Sector Cap.  : 117045
      Blocks per Track:*17          Last Track Sec. 0: 116624
      Bytes per Block :*512         Usable Sectors   :#116640
      Raw Block Cap.  :*234090      Usable Blocks    :#233280

      Mode Sense/Select Pages:#1800 Drive Mode Page 1: 0000   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#83     Interleave:#1
      Write Precomp Cylinder :*918           Number of Tracks per Zone  :#1
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*0
      Verify-by-Bytes :*F                    Alternate Tracks per Volume:*180
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000

HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB049 Pg003


      Note: * = changeable field
            # = not changeable for this drive type

 G.  SCSI DISK DRIVE (M59)

      Unit Number: 35            Device Type : 10        Variance    : 32
      Id Revision: 8.7.10.1      Date Written:           Time Written:
      Disk Name:*??????????
      Vendor Id:#MBF-DISK    Product Id:#ADP-46         Product Rev.:#30303030

      Num of Cylinders:*918         Descriptor Fields:#5 3 0 15 8 1223 13 0
      Number of Heads :*7           Fmt Sector Cap.  : 54621
      Blocks per Track:*17          Last Track Sec. 0: 54304
      Bytes per Block :*512         Usable Sectors   :#54320
      Raw Block Cap.  :*109242      Usable Blocks    :#108640

      Mode Sense/Select Pages:#1800 Drive Mode Page 1: 0000   OS Default: 2500
      Format Gap 1:#0   Gap 2:#0    Step Rate/2-byte :#83     Interleave:#1
      Write Precomp Cylinder :*918           Number of Tracks per Zone  :#1
      Landing Zone Cylinder  :#0             Alternate Tracks per Zone  :#0
      Reduced Write Curnt Cyl:#0             Alternate Sectors per Zone :*0
      Verify-by-Bytes :*F                    Alternate Tracks per Volume:*126
      SCSI Commands:D9B0273E04B101180000000000000000000000000000000000000000


      Note: * = changeable field
            # = not changeable for this drive type

ORIGINATOR: J WHALEN


HANDBOOKS-BASIC FOUR-MPx & ASxx Systems-------------FIB049 Pg004