Xerox Phaser 4510 - Duplex Unit Motor

4-50 Phaser 4500/4510 Service Manual
General Troubleshooting
Duplex Unit Motor
2 Check the LVPS harness assembly:
1.Disconnect P/J27 from the HVPS/engine
logic board.
2.Test each cable between J27 <=> J2750
for continuity.
Is each cable continuous?
Go to step 3. Replace the
LVPS harness
assembly.
3 Replace the duplex unit PWBA
(page 8-102).
Is the problem cleared after replacement?
Problem
solved.
Replace the
HVPS/engine
logic board
(page 8-73).
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Duplex unit motor
■ Duplex Unit PWBA
■ Duplex Unit assembly harness
■ HVPS/engine logic board
■ LVPS
■ LVPS harness assembly
■ “Duplex Unit Signal Diagram” on page 10-35
■ “Duplex Unit General Wiring Diagram” on
page 10-34
■ “P4500: 24 V Interlock, Rear Cover Switch,
Main Motor, Sub Fan, Exit Motor Assembly” on
page 10-21
■ “Duplex Unit Plug/Jack Locator” on page 10-14
Troubleshooting Procedure
Steps Actions and Questions Yes No
1 Check the duplex unit assembly harness:
1.Remove the duplex unit.
2.Disconnect P/J50 from the duplex unit
PWBA.
3.Test each cable between J2750 <=> J50
for continuity.
Is each cable continuous?
Go to step 2. Replace the
duplex unit
assembly
harness.
2 Check the LVPS harness assembly:
1.Disconnect P/J27 from the HVPS/engine
logic board.
2.Test each cable between J27 <=> J2750
for continuity.
Is each cable continuous?
Go to step 3. Replace the
LVPS harness
assembly.
Troubleshooting Procedure (continued)
Steps Actions and Questions Yes No