Rap 8.4.7.11 Inoperative Hcf (Hfc Not Detected On Configuration Sheet) - Xerox DocuPrint N24 Service Manual

RAP 8.4.7.11 Inoperative HCF (HFC not detected on Configuration Sheet)

1 Check the HCF Interface Harness. The Harness is firmly connected to P/J 613 at the rear of the
Printer.
Y N
|
Reconnect the HCF Interface Harness.
2 Remove the HCF Rear Cover (REP 8.4.3.1). Measure the voltage between J481-1 and FG,
between J481-2 and FG, and between J480-3 and FG on the HCF PWB (WIR 8.4.5.1). There is
+5VDC between J481-1 and FG, between J481-2 and FG, and between J481-5 and FG.
Y N
|
Check the wiring between P/J 480 and P/J 481 to P/J 406 (WIR 8.4.5.1). If OK, replace the
Printer Engine Controller PWB (REP 4.10.6).
3 Measure the voltage between J481-7 and FG and between J481-8 and FG on the HCF Drive
PWB (WIR 8.4.5.1). There is +24VDC between J481-7 and FG and between J481-8 and FG.
Y N
|
Check the wiring between P/J 481 and P/J 406 (WIR 8.4.5.1). If OK, replace the Printer
Engine Controller PWB (REP 4.10.6).
4
eplace the HCF PWB (REP 8.4.3.5).
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