Xerox Phaser 7100

Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-448
Solenoid Troubleshooting
Bypass Tray Feed Solenoid
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• Front Harness Assembly, PL 4.2.11
• Bypass Tray Feed Solenoid, PL 4.3.10
• MCU PWB, PL 12.1.15
• Main Harness Assembly, PL 12.3.1
• Overview Diagram (1 of 3) on page 7-32
• Drive 2/ Bypass Tray on page 7-45
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the Bypass Tray Solenoid operation.
Perform DC330 Component Control on
page 2-26 [071-014] to check the operation of
the Bypass Tray Feed Solenoid.
Is the Bypass Tray Feed Solenoid 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 Bypass Tray
Feed Solenoid and MCU PWB.
Are the connectors P/J4753, P/J4751, and P/J475
connected securely?
Go to step 3. Connect the
connectors P/J4753,
P/J4751, and P/J475.
3. Check the conductivity between the Bypass Tray
Feed Solenoid and MCU PWB.
Is the connection between P/J4753 <=> P/J4751
conducting properly?
Go to step 4. Replace the Front
Harness Assembly.
4. Check the conductivity between the Relay
Connector and MCU PWB.
Is the connection between P/J4751 <=> P/J475
conducting properly?
Go to step 5. Replace the Main
Harness Assembly.
5. Check the voltage supply (+24VDC) to the Bypass
Tray Feed Solenoid.
Measure the voltage between the MCU PWB
GND <=> P/J475-4.
Is there a voltage (approx. +24VDC) output?
Close the Interlock Switch and check.
Replace the Bypass
Tray Feed Solenoid
(REP 4.9 Bypass Tray
Feed Solenoid on
page 4-104).
Go to +24VDC Power
Troubleshooting on
page 2-455.