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Xerox DocuPrint N17 Service Manual
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Repair Analysis Procedures (RAPs)
7.4 RAPs without Fault/Status Codes
7.4.1 Inoperative Printer
WARNING! Do not touch the HVPS or its associated parts which emit high voltages.
1 Disconnect the System Controller. Switch ON the Main Power. The Fan Assembly turns.
Y: Go to step 2.
N: Go to step 3.
2 Remove all options on the System Controller. Reinstall the System Controller. Switch ON the
main power. The fan assembly starts to spin.
Y: Replace all options one at a time and retest.
N: Replace the System Controller PWB.
3 Check for the voltages between the following pins:
•
+24VDC between J11-11 and J12-5
•
+24VDC between J12-1 and J12-5
•
+5VDC between J11-13 and J12-5
•
+5VDC between J12-2 and J12-5
NOTE: Check +5VDC circuits for short circuit.
NOTE: Check +24VDC circuits for short circuit.
NOTE: To start the above, disconnect P/J11 from the Print Engine Controller and wait five minutes to
switch on the printer power. Conduct this analysis before the LVPS Assembly stops voltage
output due to the absence of sufficient load (within 30 seconds after switching on the printer
power).
Y: Go to step 4.
N: Replace the LVPS Assembly.
4 Disconnect P/J111 on the HVPS and switch on the printer power. The Fan Assembly starts to
spin.
Y: Replace the HVPS Assembly.
N: Go to step 5.
5 Disconnect P/J21 of the Fan Assembly and switch on the printer power. Ensure the LCD is
functioning when power comes on.
Y: Replace the Fan Assembly.
N: Go to step 6.
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