Gestetner G060, Service Manual

Page: 495 / 1106

SC TABLE
SM 4-13 G570
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC142
(CF)
White level
detection error
•
The white level cannot be
adjusted within the target
during auto gain control.
•
Dirty exposure glass
or optics section
•
SBU board defective
•
IPU board defective
•
Exposure lamp
defective
•
Lamp stabilizer
defective
1. Turn on the main switch off and on.
2. Clean the exposure glass, white plate,
mirrors, and lens.
3. Check if the exposure lamp is lit
during initialization.
4. Check the harness connection
between SBU and IPU.
5. Replace the exposure lamp.
6. Replace the SBU board.
7. Replace the IPU board
B
SC 161
(CF)
IDU error
•
After the command is
written into the DFID self-
diagnosis startup register,
the correct value is not
stored in the register in
the specified duration.
NOTE: This error is
detected when the main
switch is turned on.
•
After the negate
interruption of FGATE
occurs, IDU is not
recognized in the
specified duration.
NOTE: This error is
detected during scanning
operations.
•
IPU board defective
(defective connection
between ASIC and
DFID, or Defective
LSYNC)
1. Turn the main switch off and on.
2. Replace the IPU board. B
SC195 Serial Number
Mismatch
•
Serial number stored in
the memory does not
consist of the correct
code.
•
NVRAM defective
•
BCU replaced without
original NVRAM
Open the front cover and turn on the
main switch. Check the serial number
with SP5-811-2.
If the stored serial number is incorrect,
contact your product specialist for
details of how to solve the problem. B