Duplex Unit Pwba - Xerox Phaser 4500 Service Manual

Duplex Unit PWBA

Troubleshooting Reference
Applicable Parts
Duplex Unit PWBA
Duplex Unit Assembly Harness
HVPS/Engine Logic Board
LVPS Harness Assembly
Troubleshooting Procedure
Steps Actions and Questions
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?
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?
3 Replace the Duplex Unit PWBA
(page 8-123).
Is the problem cleared after
replacement?
4-54
Wiring and Plug/Jack Map References
"Duplex Unit Signal Diagram" on page 10-30
"Duplex Unit General Wiring Diagram" on
page 10-29
"Duplex Unit Plug/Jack Locator" on page 10-12
Yes
Go to step 2.
Go to step 3.
Problem solved.
No
LVPS Harness
HVPS/Engine
Phaser 4500 Service Manual
Replace the
Duplex Unit
Assembly
Harness.
Replace the
Assembly.
Replace the
Logic Board
(page 8-89).