TM 11-7025-210-23
APPENDIX D
SCHEMATIC DIAGRAMS
Index of Schematic Diagrams
Figure No.
Title
Universal Wire Harness Connections
Universal Wire Harness Wire and Connector Pin Numbers
FO-1
Line Printer Interconnecting Block Diagram
FO-2
Mother Board Connection Diagram
FO-3
Hammer and Frame Connection Diagram
D-1. GENERAL
Appendix D illustrates and lists the major wire connections in the line printer as a help in troubleshooting.
D-2. DIAGRAMS
The following diagrams are arranged to show overall printer schematics, then the schematics of the mother board, the
universal wire harness, and the hammers and frame.
a. Line Printer Interconnecting Block Diagram. This diagram (FO-1) provides information on wire connections
between boards in the bustle and boards in the printer. It also provides information on wire connections between boards
and the following switches and other components:
Front/rear low paper switches
Paper out switch
RUN/LOAD switch
Control panel switches
Bell
b. Mother Board Connection Diagram. This diagram (FO-2) provides information on wire connections between
the following:
Mother board and all bustle and printer boards
Mother board and universal wire harness
Mother board and linefeed connector
D-1