Service manual

SC901: Inconsistent main counter and backup counter
Type: 2
- Description -
This SC is displayed when the difference between the main and
backup counter values is more than
±
5.
- Detection Timing -
When the power switch is turned on
When the Counter key is pressed
- Possible Causes -
• Main counter (See "6-12. OTHERS" in "6. REPLACEMENT AND
ADJUSTMENT".)
SP-Log: 7-402-9
SC902: SCU-SCSI communication error
Type:1
- Description -
This SC occurs when the power switch is turned on and neither the
scanner IPU board nor main control board is recognized or when an
initial error occurs in the SCSI driver.
- Detection Timing -
Always
- Possible Causes-
• SCU
• SCSI cable
SP-Log: 7-402-6
SC903: Serial communication error
Type: 1
- Description -
This SC is displayed when a counter serial I/O error is detected on the
optics fiber cable between the SCU and the main control board for a
successive five times.
- Detection Timing -
Always
- Possible Causes -
• SCU
• Main control board
• Fiber cable
SP-Log: 7-402-6
Trouble-
shooting
SERVICE CALL CONDITIONS
SM 6-31 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA