MBF COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN

SERVICE GROUP(S): MICRO,MINI,LARGE     MFG: DATASOUTH

 NACS  TYPE(S): 6863,6864,6868,9281,   MFG. MODEL(S): CX3220,DS220,TX5220
                9285,9653
CATEGORY: PRINTER                      DESC: DOT MATRIX - MID SIZE

                   *** TABLE OF CONTENTS AS OF 12/20/90 ***
FIB 00001.General Information.........................................07/07/87
FIB 00002.TX5220 POWER SUPPLY / INTERFACE CONFIGURATION...............01/19/88


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                          *** General Information ***                        

               ***  NACS  MACHINE TYPES AND FEATURE NUMBERS ***

                         6863,6864,6868,9281,9285,9653
PARTS PREFIX = DD

                        *** AVAILABLE DOCUMENTATION ***
SHDBK-697   DS220 OPERATORS MANUAL
SHDBK-679   DS220 MAINTENANCE MANUAL

                           *** AVAILABLE TRAINING ***
MICRO PRINTER CLASS

                              *** SPECIAL TOOLS ***
NONE

                   *** SPECIAL ADMINISTRATIVE PROCEDURES ***
NONE

ORIGINATOR: G. PHILLIPS


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             *** TX5220 POWER SUPPLY / INTERFACE CONFIGURATION ***

Please follow the diagram below when replacing power supplies or
interface boards.  The New Style Interface requires -5 Volts
developed on the power supply. The Old Style has a +5V to -5V
converter located on the board at location U29.  Note the
different pin configurations on the power supplies.

Pins are numbered left to right facing the component side of each
board.

-------------------                           -------------------            
 Old Style        |     Cable  DD135          |       Old Style
  P/S         Gnd |-1----------------------1--| Gnd   Interface
                  |                           |                              
 DD141        +5V |-2----------------------2--| +5V     DD142
(TX5220)          |                           |        (TX5220)              
              N/C |-3-                    -3--| N/C
 DD147            |                           |         DD47
(TX5180)          |                           |        (TX5180)              
-------------------                            ------------------


-------------------                            ------------------
 New Style        |      Cable  DD136         |       New Style
   P/S        Gnd |-1----------------------1--| Gnd   Interface
                  |                           |                              
  DD82        -5V |-2---------\  /---------2--| +5V     DD121
                  |            ><             |
              +5V |-3---------/  \---------3--| -5V     DD153
                  |                           |                              
-------------------                            ------------------

 NOTE: The New Style Power Supply and the New Style Interface
       will work in both the TX5180 and the TX5220.

       A New Style Power Supply will work with an Old Style
       Interface Board if the 3 wire cable is used.


ORIGINATOR: GEORGE PHILLIPS                                                  
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