Phaser 4500/4510 Service Manual 4-27
General Troubleshooting
Exit Motor PWBA
2 Check the LVPS harness assembly:
1.Disconnect P/J11, P/J41, and P/J411.
2.Test for continuity across the following
points:
■ P411-3 <=> J41-5
■ P411-1 <=> J11-12
Are both continuous?
Go to “LVPS
(Low Voltage
Power
Supply)” on
page 4-4.
Replace the
LVPS harness
assembly.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Exit Motor PWBA
■ LVPS harness assembly
■ 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 LVPS harness assembly:
1.Disconnect P/J27, P/J10, P/J102 and P/
J101 from the LVPS harness assembly.
2.Test for continuity across the following
points:
■ J27 <=> J102
■ J10-8 <=> J101-2
Are both continuous?
Go to step 2. Replace the
LVPS harness
assembly.
2 Check the Exit Motor PWBA power source
voltage:
1.Disconnect P/J101 from the Exit Motor
PWBA.
2.Measure the voltage across J101-2 <=>
J101-1.
Is the voltage +24 VDC?
Go to step 3. Replace the
LVPS
(page 8-62).
3 Replace the Exit Motor PWBA (page 8-61).
Is the problem cleared, after
replacement?
Problem
solved.
Replace the
HVPS/engine
logic board
(page 8-73).
Troubleshooting Procedure (continued)
Steps Actions and Questions Yes No
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Weight and Dimensions
