Image Processor Board - Xerox Phaser 4500 Service Manual

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General Troubleshooting

Image Processor Board

4-34
Troubleshooting Procedure (continued)
Step Actions and Questions
1. Switch the printer power OFF.
3
2. Re-install one of the removed options or
cables.
3. Switch the printer power ON.
Does the printer boot up correctly and is
displayed on the control panel?
to Print
Troubleshooting Reference
Applicable Parts
Image processor board
DC-DC converter
DC-DC converter harness
LVPS
LVPS harness
Troubleshooting Procedure
Steps
Actions and Questions
1
Check the 5 V power (P4500):
1. (P4500) Disconnect J402 from the DC-
DC converter.
(P4510) Disconnect J40 from the LVPS.
2. (P4500) Measure the voltage across
P402-1 <=> P402-2.
(P4510)Measure the voltage across P40-
1 <=> P40-2.
Does the voltage measure +5 VDC?
Yes
Repeat the
last step
with the
next option
or cable
Ready
until the
problem is
found.
Wiring and Plug/Jack Map References
"Image Processor Board, DC-DC Converter
(P4500), Control Panel" on page 10-31 (P4500)
or
"Print Engine Wiring Diagrams" on page 10-19
"Print Engine Plug/Jack Locator" on page 10-3
Yes
Go to step 2.
Phaser 4500/4510 Service Manual
No
Replace the
option or
cable just
installed.
No
P4500: Go to
"DC-DC
Converter
(P4500 only)"
on page 4-5.
P4510: Go to
"LVPS (Low
Voltage
Power
Supply)" on
page 4-4.

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