Optional 550-Sheet Feeder Turn Roller Clutch - Xerox Phaser 4500 Service Manual

General Troubleshooting

Optional 550-Sheet Feeder Turn Roller Clutch

4-48
Troubleshooting Reference
Applicable Parts
Optional 550-sheet paper
feeder turn roller clutch
Optional 550-sheet paper
feeder
550-sheet paper cassette
550-sheet feeder PWBA
Clutch/sensor harness 1
Clutch/sensor harness 2
Feeder harness 2
HVPS/engine logic board
LVPS
Feeder harness 1
Troubleshooting Procedure
Steps Actions and Questions
1 Check Clutch/Sensor harness 1 for
continuity
1. Disconnect P/J855.
2. Disconnect P/J854.
Is each cable between J855 <=> J854
continuous?
2 Check Clutch/Sensor harness 2 for
continuity
1. Disconnect P/J85 from the 550-sheet
feeder PWBA.
2. Disconnect P/J855.
Is each cable between J85 <=> J855
continuous?
Check the resistance of the turn roller
3
clutch:
Measure the resistance of the clutch
between P/J854-1 <=> P/J854-2.
Does the resistance measure 172 ohm +/-
10% (at 20° C)?
Check the 550-sheet feeder PWBA:
4
1. Disconnect P/J83 from the 550-sheet
feeder PWBA.
2. Test for continuity at these points:
P83-3 <=> P85-3
P83-4 <=> P85-4
Are both continuous
Wiring and Plug/Jack Map References
"550-Sheet Feeder Signal Diagram" on
page 10-33
"550-Sheet Feeder General Wiring Diagram" on
page 10-32
"550-Sheet Feeder Plug/Jack Locator" on
page 10-12
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Phaser 4500/4510 Service Manual
No
Replace the
Clutch/
Sensor
harness 1.
Replace the
Clutch/
Sensor
harness 2.
Replace the
turn roller
clutch
(page 8-92).
Replace the
550-sheet
feeder PWBA
(page 8-85).