Xerox Phaser 7100

Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-424
Turn Roller Clutch
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• Turn Roller Clutch (Turn Clutch Assembly), PL 5.1.9
• MCU PWB, PL 12.1.15
• Paper Transport on page 7-51
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the Turn Roller Clutch operation.
Perform DC330 Component Control on
page 2-26 [071-016] to check the operation of
the Turn Roller Clutch.
Is the Turn Roller Clutch operating properly?
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Go to step 2.
2. Check the connection between the Turn Roller
Clutch and MCU PWB.
Is the connector P/J453 connected securely?
Go to step 3. Connect the connector
P/J453.
3. Check the resistance of the Turn Roller Clutch
Turn Off the power, remove the Turn Roller Clutch
(REP 5.4 Turn Clutch Assembly on page 4-119),
and check the wire resistance between the two
terminals.
Is the resistance 137 Ohms (at 20° C)?
Go to step 4. Replace the Turn
Clutch Assembly (REP
5.4 Turn Clutch
Assembly on
page 4-119).
4. Check the voltage supply (+24VDC) to the Turn
Roller Clutch.
Measure the voltage between the MCU PWB
GND <=> P/J453-1.
Is there a voltage (approx. +24VDC) output?
Close the Interlock Switch and check.
Replace the Turn
Clutch Assembly (REP
5.4 Turn Clutch
Assembly on
page 4-119).
Go to +24VDC Power
Troubleshooting on
page 2-455.