Xerox Phaser 6128MFP Service Manual page 217

Phaser 6128MFP Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
3 Check the Imaging Unit harness for
continuity. Disconnect:
J42 from the MCU Board
J144 from the EEPROM Board
P422 from the Imaging Unit
Is the harness damaged?
4 Check for +3.3 V at the MCU Board
connector P/J42.
Is there +3.3 V between P42-3
<=>ground?
5 Reseat the MCU Board connections.
Does the error persist?
Error Messages and Codes
Yes No
Repair the Go to step 4.
harness.
Replace the Go to step 5.
EEPROM Board.
Replace the Complete.
MCU Board
(page 8-57).
3-97