Printronix P9012 Maintenance Manual page 33

Multifunction line printer
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DCU PCBA (Slot 3)
J1
Serial I/O
J2
Parallel I/O
TP4 (+12VDC)
TP3 (–12VDC)
TP2 (VCCP5)
TP1 (GND)
Principles of Operation
Figure 2–12. Data Control Unit (DCU) PCBA
J5
J6
2–15

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