10 February 2005
SERVICE CALL
4-3
Trouble-
shooting
No.
Definition
Symptom Possible
Cause
IPU error
161 D
The self-diagnostic error for the IPU
occurs immediately after the main
power is turned on.
•
IPU board defective
•
BICU board defective (defective
connection between ASICs)
Serial number mismatch
195 D
Serial number stored in the memory
is not correct.
NOTE:
Check the serial number with
SP5-811-002.
If the stored serial number is
incorrect, contact your product
specialist for details of how to solve
the problem.
•
NVRAM defective
•
BICU replaced without original NVRAM
PSU fan error
199 D
The PSU fan low signal is detected
for 2 seconds when the PSU fan
controller sends the high signal to the
PSU fan.
•
PSU fan defective
•
Disconnected or damaged harness
Polygon motor error
201 D
•
The polygon motor starts operating
or changes its speed.
→
The lock
signal is not detected within 5
seconds.
•
The polygon motor stops operating.
→
The lock signal is still detected
for 3 seconds.
•
The polygon motor is operating.
→
The lock signal remains undetected
for 0.5 seconds.
•
Defective polygon motor
•
Defective harness
1st beam synchronization error
220 D
A polygon motor lock is detected; the
LD door is closed; and the LD
remains on.
→
The LD error (1st
beam synchronization error)
continues for 0.5 seconds.
•
Disconnected synchronization detector
board
•
Defective LD unit
•
Defective BICU
2nd beam synchronization error
221 D
A polygon motor lock is detected; the
LD door is closed; and the LD
remains on.
→
The LD error (2nd
beam synchronization error)
continues for 0.5 seconds.
•
Disconnected synchronization detector
board
•
Defective LD unit
•
Defective BICU
FGATE on error
230 D
A transfer belt mark is detected.
→
No FGATE on signal is detected
within 1 second.
•
Defective BICU
FGATE off error
231 D
An FGATE assert signal is detected.
→
The FGATE negate signal is not
detected within 30 seconds.
•
Defective BICU
