Print Engine Troubleshooting; Main Motor - Xerox Phaser 4500 Service Manual

Print Engine Troubleshooting

Main Motor

Troubleshooting Reference
Applicable Parts
Main Motor
LVPS Harness Assembly
LVPS
HVPS/Engine Logic Board
Troubleshooting Procedure
Steps Actions and Questions
1 1. Remove the Print Cartridge.
2. Close the Top Cover.
3. Turn ON power and listen for the sound
of the Main Motor.
Does Main Motor rotate?
2
Is the trouble eliminated?
3 Check the LVPS Harness Assembly for
continuity:
1. Remove the LVPS Shield Plate
(page 8-75).
2. Disconnect P/J41 from the LVPS.
3. Disconnect P/J11 from the HVPS/
Engine Logic Board.
Is each cable of P/J41 <=> P/J11
continuous?
4 1. Remove the LVPS Shield Plate.
(page 8-75)
2. Disconnect P/J42 from the LVPS.
3. Disconnect P/J10 from the HVPS/
Engine Logic Board.
4. Check each wire in the LVPS Harness
(2) between P/J42 and P/J10 for
continuity.
Does each wire in the harness exhibit
continuity?
General Troubleshooting
Wiring and Plug/Jack Map References
"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
Yes
Go to step 2.
Problem solved.
Go to step 4.
Replace the LVPS
(page 8-78), then
go to step 5.
No
Go to step 3.
Go to step 3.
Replace the
LVPS Harness
Assembly.
Replace the
LVPS Harness
Assembly.
4-11