Table 76 Main Motor Harness - Xerox 5400N - Phaser B/W Laser Printer Service Quick Reference Manual

Table 75 Main Motor Assembly Troubleshooting Procedure (cont'd.)
Step Actions and Questions
8 "NO" FROM STEP 7 ABOVE
1. Remove the cheater from the Top Cover Interlock,
then reinstall the cheater.
2. With Main Motor still selected, measure the voltage on
the LVPS between P/J161-7 and frame ground.
3. Press [4] while watching the voltmeter.
Does the voltage drop from +4.7 VDC to 0 VDC?
SUSPECT COMPONENTS
9
The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one
at a time, until you isolate and solve the problem.
Main Motor Assembly [RRP 6.1,
I
LVPS Power Supply [RRP,
I
Print Engine Controller Board [RRP 8.5,
I
Table 76 Main Motor Harness
From
P/J164-1
P/J164-2
P/J164-5
P/J164-6
P/J164-7
This voltage is
valid if printer is
set for 1200 DPI.
Phaser 5400 Laser Printer Service Guide
page
To
Frame Ground
Frame Ground
Frame Ground
Frame Ground
Frame Ground
page 295
312]
page 310]
Voltage
+24 VDC
+24 VDC
+3.2 VDC
+4.7 VDC
+4.7 VDC
Yes No
Replace the Replace the
LVPS Print Engine
[RRP 8.6, Controller
page 312]. Board
[RRP 8.5,
page 310].
129