Panasonic KV-S5046H, Service Manual

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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) Insert the cables properly. Pay attention
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. Replace the FAN. After replacing
the fan, please
insert the power
cord after 5 min-
utes or more.
4. Power circuit (including a safety circuit) does
not work, properly. Replace POWER Board or DRIVE Board.
5. LED (Indicators) or its drive circuit does not
work, correctly. 1. Check Power to Drive Cable and Drive to
Control Cable.
2. Replace DRIVE Board or CONTROL Board.
6. Boot program of this scanner does not work,
correctly. Check the Indicators' status.
7. PC doesn't recognize the scanner.
(No communication) 1. Check the USB cable between PC and
the scanner.
2. Check the USB connector(JK1003).
If the connector is damaged, replace the
connector.
3. The scanner status is ready?

If yes, replace the IC 0001.
If no, check the LEDs (for Ready, Error).
4. Replace the CONTROL Board.
Scanned Image Problems
(ex: black line or band,
white line or band) Dust on the CIS (F) or CIS (B) Clean the glass surface.
Dust inside the CIS (F) or CIS (B) Remove CIS (F) or CIS (B)
CIS (F) or CIS (B) is broken. 1. Execute Image Sensor Output in Sec. 9.3.6
to check the CIS condition.
2. Check the cable from Relay Board to CIS or from
CONTROL Board to Relay Board.
3. Replace the CIS (F) or CIS (B).
4. Replace Relay Board or CONTROL Board.
Scanning position is
shifted. When reassembling CIS (F) or CIS (B) or
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.
When replacing CONTROL Board,
re-adjustment is not done.
The document skews
or has a crease when
scanning Document Guides are not set correctly,
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. Assemble the rollers properly again.
Rollers have reached their life expectancy. Replace the rollers after inspecting them.
Scanned Image color
Problems
(ex:Colors differ by the part
or right and left of a picture
after user shading imple-
mentation.) 1. When user shading, the shading paper is
carried out by Portrait.
2. The right shading paper is not used. The right shading paper is placed by landscape and
user shading is carried out. 1.Open the
Document
Guides to the
maximum.
2.Document
Guides is
opened a
maximum of
312mm,
although it
once stops at
a 307mm
position.