Read Panasonic KV-S5055C (serv.man2) Service Manual online
106
10 TROUBLESHOOTING
10.1. Troubleshooting-1 (with no error message on PC)
Symptom
Possible Cause
Check Point
Remarks
No power
1. Power cord is not inserted correctly
Insert the power cord correctly.
2. Cables in the scanner are not connected
properly. (especially around POWER Board)
properly. (especially around POWER Board)
Insert the cables properly.
Pay attention
when reassem-
bling the scanner.
when reassem-
bling the scanner.
3. FAN does not rotate.
1. Try to rotate the FAN, manually.
2. Check the power supply to the FAN.
3. Remove the FAN.
2. Check the power supply to the FAN.
3. Remove the FAN.
4. Power circuit (including a safety circuit) does
not work, properly.
not work, properly.
Remove POWER Board or DRIVE Board.
5. LED (Indicators) or its drive circuit does not
work, correctly.
work, correctly.
1. Check Power to Drive Cable and Drive to
Control Cable.
2. Remove DRIVE Board or CONTROL Board.
Control Cable.
2. Remove DRIVE Board or CONTROL Board.
6. Boot program of this scanner does not work,
correctly.
correctly.
Check the Indicators' status.
7. PC doesn't recognize the scanner.
(No communication)
(No communication)
1. Check the USB cable between PC and
the scanner.
2. The scanner status is ready?
the scanner.
2. The scanner status is ready?
→ If yes, replace the IC 0010.
If no, check the LEDs (for Ready, Error).
3. Replace the CONTROL Board.
Scanned Image Problems
(ex: black line or band,
white line or band)
(ex: black line or band,
white line or band)
Dust on the Scanning Glass (F) or Scanning
Glass (B)
Glass (B)
Clean the glass surface.
Dust on the CCD lens inside the Scanning
Glass (F) or (B)
Glass (F) or (B)
Remove the glass, and then clean the lens.
Optical Unit Front or Optical Unit Back is
broken.
broken.
1. Execute Image Sensor Output in Sec. 9.3.6
to check the CCD condition.
2. Replace the Optical Unit ((F) or (B)).
3. Replace the CONTROL Board.
to check the CCD condition.
2. Replace the Optical Unit ((F) or (B)).
3. Replace the CONTROL Board.
Scanning position is
shifted.
shifted.
When reassembling Optical Units or
mechanical parts related to conveying
documents, re-adjustment is not done.
mechanical parts related to conveying
documents, re-adjustment is not done.
Execute All Position and/or Individual Position in
Sec. 9.3.7 to adjust the scanning position.
Sec. 9.3.7 to adjust the scanning position.
When replacing CONTROL Board,
re-adjustment is not done.
re-adjustment is not done.
The document skews
or has a crease when
scanning
or has a crease when
scanning
Document Guides are not set correctly,
according to the size of
documents on the Hopper Tray.
according to the size of
documents on the Hopper Tray.
Set the Document Guides correctly.
Rollers are dirty.
Clean the rollers.
Rollers are not attached to the default position
properly when assembling.
properly when assembling.
Assemble the rollers properly again.
Rollers have reached their life expectancy.
Replace the rollers after inspecting them.
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