Xerox Phaser 4500

4-26 Phaser 4500 Service Manual
24 V Interlock
5 V Interlock, Interlock Switch Assembly
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ 24 V Interlock
■ LVPS
■ HVPS/Engine Logic Board
■ “24 V Interlock, Rear Cover Switch, Main Motor, Sub
Fan, Exit Motor Assembly” on page 10-18
■ “Print Engine General Wiring Diagram” on
page 10-17
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
Check the 24 V Interlock:
1. Disconnect P/J45 from the LVPS.
2. Test for continuity across P/J45-1 <=>
P/J45-3 while manually operating the
switch.
Is the switch continuous when pushed
and open when released?
Go to “LVPS (Low
Voltage Power
Supply)” on
page 4-4.
Replace the 24 V
Interlock
(page 8-49).
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ 5 V Interlock
■ Interlock Switch Assembly
■ Laser Unit Harness Assembly
■ LVPS Harness Assembly
■ LVPS
■ HVPS/Engine Logic Board
■ “Laser Unit, 5 V Interlock, Interlock Switch
Assembly” on page 10-24
■ “Print Engine General Wiring Diagram” on
page 10-17
■ “Print Engine Plug/Jack Locator” on page 10-3