Engine Logic Board Nvram Failure - Xerox Phaser 4500 Service Manual

Engine Logic Board NVRAM Failure

Error Code
U6: NVM Fail
Troubleshooting Reference
Applicable Parts
HVPS/Engine Logic Board
Troubleshooting Procedure
Steps Actions and Questions
1 Does the error occur when the power is
turned ON?
2 Turn the power OFF and ON again.
Does the error still occur?
3
Cycle the power OFF, then ON several
times.
Does the error still occur?
4
Replace the HVPS/Engine Logic Board.
(page 8-89)
Does the error occur?
Error Messages and Codes
Wiring and Plug/Jack Map References
"24 V Interlock, Rear Cover Switch, Main Motor, Sub
Fan, Exit Motor Assembly" on page 10-18
"Print Engine General Wiring Diagram" on
page 10-17
"Print Engine Plug/Jack Locator" on page 10-3
Yes
Go to step 4.
Go to step 4.
Go to step 4.
Go to "Electrical
No
Problem solved.
Problem solved.
Noise" on
page 4-41.
Go to step 2.
Go to step 3.
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