Xerox PHASER 7500 - LPH Write Fail M

Phaser 7500 Printer Service Manual 3-167
Error Messages and Codes
LPH Write Fail M
Communication error between MCU and LPH (data write error to LPH).
Note
If this error occurs, it is possible that the process have not been performed
correctly because of other LPH Fail. If other LPH Fail had occurred, solving that
other LPH Fail has a higher priority.
Applicable Chain-Link Code
• 061-367: LPH Write Fail M
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ LPH Unit (M), PL2.1.2
■ LPH Cable Assy, PL2.2.1
■ LPH Rear PWB (M), PL2.2.5
■ MCU PWB, PL18.3.6
■ Motor Drive PWB, PL18.3.7
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Perform the NVRAM Read/ Write
test in Diagnostics.
Is the value 0?
Go to step 3. Go to step 2.