Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-291
3. Check the Imaging Unit CRUM Connector
Assembly.
Is the connection terminal of the Imaging Unit
CRUM Connector Assembly damaged?
Replace the Imaging
Unit CRUM Connector
Assembly (REP 6.2
Imaging Unit CRUM
Connector Assembly
on page 4-124).
Go to step 4.
4. Check the connection between the Imaging Unit
CRUM Connector Assembly and MCU PWB.
Are the connectors P/J4552, P/J4551, and P/J455
connected securely?
Go to step 5. Connect the
connectors P/J4552,
P/J4551, and P/J455.
5. Check the conductivity between the Imaging
Unit CRUM Connector Assembly and Relay
Connector.
Is the connection between P/J4552 <=> P/J4551
conducting properly?
Go to step 6. Replace the CRUM X
Harness Assembly (Y/
M/ C).
6. Check the conductivity between the Relay
Connector and MCU PWB.
Is the connection between P/J4551 <=> P/J455
conducting properly?
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Replace the Main
Harness Assembly.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No
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