Service manual

3-
46 QMS 3260/4032 Laser Printer - Base Engine Technical Manual
Release Version 11-97
Primary FIPS: Error Codes
3.38 Error Code J8-3
A CRU Memory error occurred.
Logic Control on the MCU PWB could not read CRU Memory data.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific
problem. One or more of these components may have failed
partially or completely. If you cannot isolate the problem using
this FIP, replace each component listed below, one at a time,
until the problem disappears.
•
wiring and connectors linking the components
1
LVPS +5VDC CHECK
Measure the voltage between J400-7 and FG, and between
J400-8 and FG on the MCU PWB.
Is there +5VDC between J400-7 and FG, and +5VDC
between J400-8 and FG?
Go to step 2 Replace the
LVPS Assem-
bly (RRP 9.2)
2
Replace the EP Cartridge with another one
Does the J8-3 error code still appear?
Go to step 3 Problem
solved
3
Replace the MCU PWB (RRP 9.7)
Does the J8-3 error code still appear?
Refer to the
wiring dia-
grams Section
14 and check
for a broken
wire or loose
connection
between com-
ponents
Problem
solved