Dc-Dc Converter (P4500 Only) - Xerox Phaser 4500 Service Manual

DC-DC Converter (P4500 only)

Phaser 4500/4510 Service Manual
Troubleshooting Procedure (continued)
Steps Actions and Questions
Check the output of the DC-DC converter
3
(P4510 only):
1. Disconnect P/J40 from the LVPS.
2. Turn the power ON.
3. Measure the voltages at the following test
points:
P/J40-1 <=> P/J40-2: 3.3 V
P/J40-3 <=> P/J40-4: 5 V
Are the voltages measured within the
specified range?
Check the LVPS harness for continuity:
4
1. Turn the power OFF.
2. Disconnect P/J11 from the HVPS/engine
logic board.
3. Disconnect P/J41 from the LVPS.
4. Check each conductor in the harness for
continuity.
Is each conductor of J11 <=> J41
continuous?
5 Is the AC power supply outlet correctly
wired and grounded?
Note
The DC-DC converter is an integral part of the LVPS in the P4510. This
procedure applies only to the stand-alone board used in the P4500.
Troubleshooting Reference
Applicable Parts
DC-DC converter PWBA
LVPS harness assembly
General Troubleshooting
Yes
Go to step 4.
Go to step 4.
Replace the
HVPS/engine
logic board.
(page 8-73)
Wiring and Plug/Jack Map References
"Image Processor Board, DC-DC Converter
(P4500), Control Panel" on page 10-31
"Phaser 4500 Left Side" on page 10-10
No
Replace the
LVPS.
(page 8-62)
Replace the
LVPS harness
assembly
(page 8-62).
Inform the
customer or
the
electrician.
4-5