Xerox Phaser 4500 Service Manual page 201

Phaser 4500/4510 Service Manual
Troubleshooting Procedure (continued)
Steps Actions and Questions
Check feeder harness 2:
5
1. Remove feeder harness 2.
2. Test for continuity across J2083 <=> J83.
Is it continuous?
Check feeder harness 1:
6
1. Remove feeder harness 1.
2. Test for continuity across J20 <=> J2083.
Is it continuous?
Check the power to the feed clutch
7
assembly:
1. Measure the voltage across P20-10 <=>
P20-9 on the HVPS/engine logic board.
Is the voltage +24 VDC?
8 Check the HVPS/engine logic board:
1. Disconnect P/J10 from the HVPS/engine
logic board.
2. Test for continuity across P10-1 <=>
P20-10.
Is it continuous?
General Troubleshooting
Yes No
Go to step 6. Replace
feeder
harness 2.
Go to step 7. Replace
feeder
harness 1.
Replace the Go to step 8.
feed clutch
assembly
(page 8-91).
Go to "LVPS Replace the
(Low Voltage HVPS/engine
Power logic board
Supply)" on (page 8-73).
page 4-4.
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