Rap 8.5.7.29 Loss Of +24.0 Vdc - Xerox DocuPrint N24 Service Manual

RAP 8.5.7.29 Loss of +24.0 VDC

1 Disconnect the Finisher from the base engine (REP 8.5.3.1). Enter Diagnostic Mode and
generate a test print (5.4.4). The printer generates a test print and sends it to the Face Down
Output Bin.
Y N
|
Go to section 7 and troubleshoot a printer problem.
2 Reattach the Finisher to the base engine. Remove the PWB Top Cover (REP 8.5.3.10). Close
the Finisher Top Cover or actuate the Top Cover Interlock Switch. Close the Finisher Front Cover
or actuate the Front Cover Interlock Switch. Close the Compiler Cover or actuate the Compiler
Cover Interlock Switches. Switch on printer power.
CAUTION AC line voltage is present on the LVPS PWB. With the protective PWB Top Cover
removed there is a shock danger present. Use extreme caution when working on and
around the LVPS and the Finisher PWB.
Set your multimeter to read AC voltage. Measure the voltage between P/J2-3 and P/J2-4 on the
LVPS. There is 110 VAC between P/J2-3 and P/J2-4.
Y N
|
Go to section 6 or section 7 and troubleshoot a loss of AC problem.
3 Set your multimeter to read DC voltage. Measure the voltage between P/J502-1 and FG (frame
ground). There is +24VDC between P/J502-1 and FG.
Y N
|
Replace the LVPS (REP 8.5.3.84).
4 Set your multimeter to read DC voltage. Measure the voltage between P/J265-8 and FG on the
Finisher PWB. There is +24VDC between P/J265-8 and FG.
Y N
|
Check the wiring between the Printer Engine Controller PWB and the Finisher. Replace the
Printer Engine Controller PWB (REP 4.10.6).
5 Set your multimeter to read DC voltage. Measure the voltage between P/J897-13 and FG on the
Finisher PWB. There is +24VDC between P/J897-13 and FG.
Y N
|
Replace the Finisher PWB (REP 8.5.3.83).
6 Check for a component loading down the +5.0 VDC circuit.
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