Table 68 System Controller Isolation Procedure - Xerox 5400N - Phaser B/W Laser Printer Service Quick Reference Manual

RAP 42 System Controller Isolation
Table 68 System Controller Isolation Procedure
Step Actions and Questions
SYSTEM CONTROLLER ISOLATION
1
1. Switch printer power OFF.
2. Disconnect all cables connected the rear of the
System Controller Board.
3. Remove the Left Side Cover [RRP 1.1,
4. Remove all options from the System Controller Board.
5. Switch printer power ON.
Does the printer boot up correctly and "Ready"
is displayed on the Control Panel?
SYSTEM CONTROLLER RESEAT
2
1. Switch printer power OFF.
2. Remove, then reinstall the System Controller Board
[RRP 8.1,
Print Engine Controller Board.
3. Switch printer power ON.
Does the printer boot up correctly and "Ready"
is displayed on the Control Panel?
3 OPTIONS ISOLATION
1. Switch printer power OFF.
2. Reinstall one of the removed options or cables.
3. Switch printer ON.
Does the printer boot up correctly and "Ready"
is displayed on the Control Panel?
SUSPECT COMPONENTS
4
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.
System Controller Board [RRP 8.1,
I
Print Engine Controller Board [RRP 8.5,
I
Printer Options
I
Wiring and connectors linking the components
I
118
page 305] to reseat the connection with the
page 250].
page 305]
page 310
Phaser 5400 Laser Printer Service Guide
Yes No
Go to Go to
Step 3. Step 2.
Problem Replace the
solved. System
Controller
Board
[RRP 8.1,
page
Repeat the Replace the
last step with option or
the next cable just
option or installed.
cable until
the problem
is found.
305].