4-24 Phaser 4500/4510 Service Manual
General Troubleshooting
24 V Interlock
3 Check the exit sensor assembly harness:
1.Remove the paper exit assembly
(page 8-49)
2.Remove exit sensor assembly harness.
3.Check the following for continuity:
■ J29-1 <=> J290-3
■ J29-2 <=> J290-2
■ J29-3 <=> J290-1
Are all continuous?
Go to step 4. Replace the
exit sensor
harness.
4 Replace the output tray full sensor
(page 8-52).
Is the problem cleared?
Problem
solved.
Replace the
HVPS/engine
logic board
(page 8-73).
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ 24 V Interlock
■ LVPS
■ HVPS/engine logic board
■ “P4500: 24 V Interlock, Rear Cover Switch,
Main Motor, Sub Fan, Exit Motor Assembly” on
page 10-21
■ “Print Engine Wiring Diagrams” on page 10-19
■ “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 8-40).
Troubleshooting Procedure (continued)
Steps Actions and Questions Yes No
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General
Weight and Dimensions
