Rap 7.26 Iot Nvm Fail (U6-3, U6-4) - Xerox DocuPrint N24 Service Manual

RAP 7.26 IOT NVM Fail (U6-3, U6-4)

NOTE: If the Printer Engine Controller PWB was just replaced and this error message appeared, verify
the PWB is initialized by performing the Printer Engine Controller PWB replacement procedures
in (REP 4.10.6).
1 Switch off printer main power. Wait one minute. Switch on printer main power.The error message
reappears.
Y N
|
Suspect a possible intermittent problem with the Printer Engine Controller PWB (REP
4.10.6), the LVPS (REP 4.10.2), or the connectors and wiring linking these components.
2 Measure the voltage between J400-7 and FG (6.3.3), and between J400-8 and FG on the Printer
Engine Controller PWB. There is a steady +5VDC between J400-7 and FG, and a steady +5VDC
between J400-8 and FG.
Y N
|
Check wiring between P/J 400 and P/J 501 (6.3.3). If OK, replace the LVPS Assembly
(REP 4.10.2).
3 Replace the Printer Engine Controller PWB (REP 4.10.6).
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7-35 Repair Analysis Procedures (RAP)