Figure 17 Fuser Connector P174 - Xerox 5400N - Phaser B/W Laser Printer Service Quick Reference Manual

Table 78 Fuser Assembly Troubleshooting Procedure (cont'd.)
Step Actions and Questions
6 "YES" FROM STEP 5 ABOVE
1. Reconnect P/J171, P/J172 and P/J17.
2. Switch printer power ON.
3. Measure the voltage between J17-2 on the Print
Engine Controller Board and frame ground.
Does the voltage measure +3.3 VDC?
"NO" FROM STEP 6 ABOVE
7
Measure the voltage between P/J16-4 on the Print
Engine Controller Board and frame ground.
Does this voltage measure +3.3 VDC?
SUSPECT COMPONENTS
8
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.
Fuser Assembly [RRP 5.1,
I
Print Engine Controller Board [RRP 8.5,
I
Fuser Board [RRP 8-8,
I
LVPS Power Supply [RRP 8.6,
I
Fuser Interlock Switch [PL 9.2,
I
Harness Assembly [PL 9.2,
I

Figure 17 Fuser Connector P174

134
page 288]
page
page 314]
page 312]
page 406]
page 406]
Phaser 5400 Laser Printer Service Guide
Yes
Replace the
Fuser Board
[RRP 8-8,
page 314]. If
problem
persists,
replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310].
Replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310.
310]
No
Go to
Step 7.
Replace the
LVPS
[RRP 8.6,
page 312].