Panasonic KV-S2045C Service Manual - Page 70

Note: Frequency - problems

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KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series Error Code Possible Cause Check Point Classified Code ST1 ST2 ST3 ST4 U12 (Jam1: around conveyor) 12 00 00 00 Document remains between Waiting Sensor and Starting Position Sensor. Remove the document from the scanner. Dust on Starting Position Sensor Execute Key / Sensor and Sensor Sensitive Level tests on Sec. 9.3.6. to check the sensor condition, and to remove the dust. Mechanical problem (Drive Roller, 1. Execute Feed and Conveyor Motor tests Sensor Roller, Drive Belt, on Sec. 9.3.6. to check the mechanical Conveyor) condition. 2. Check whether the Drive Rollers, the Sensor Rollers, the Drive belt, and the conveyor to support the Drive Rollers are assembled to the scanner, properly. 3. Check the surface of the Drive Rollers. a. Configuration: Is the roller shape irregular? Replace the roller. b. Check whether the roller surface is dirty Clean the surface. 4. Check whether the Drive Belt tension is proper. (Refer to Sec. 8.3.6.) Conveyor Motor does not work properly. Re-adjust the belt tension. 1. Execute Conveyor Motor test on Sec. 9.3.6. to check the motor's rotating condition. 2. Check the connection between the Conveyor Motor and CN806 (POWER Board). 3. Check signals (1st and 4th pins) on CN806 (POWER Board). Note: Frequency · Approx. 1.4k to 6.4kHz (for KVS2025C/SU225C Series) · Approx. 1.8k to 11kHz (for KVS2045C/SU245C Series) 4. Replace the faulty cable. Conveyor Motor circuit does not work properly. 5. Replace the Conveyor Motor. 1. Execute Conveyor Motor test on Sec. 9.3.6. to check the motor's rotating condition. 2. Check the connection between CN805 (POWER Board) and CN1007 (CONTROL Board). 3. Check a signal (Motor Drive: IC871 - 11th pin) on the POWER Board. · Approx. 2.8k to 12.8kHz (for KVS2025C/SU225C Series) · Approx. 3.6k to 22kHz (for KVS2045C/SU245C Series) 4. Check the soldering condition of IC871 on the POWER Board and IC1035 on the CONTROL Board. 5. Replace the faulty cable. 6. Replace IC871 or POWER Board. 7. Replace CONTROL Board. Remarks 70

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Error Code
Possible Cause
Check Point
Remarks
Classified Code
ST1
ST2
ST3
ST4
U12
(Jam1: around
conveyor)
12
00
00
00
Document remains between
Waiting Sensor and Starting
Position Sensor.
Remove the document from the scanner.
Dust on Starting Position Sensor
Execute
Key / Sensor
and
Sensor Sensitive
Level
tests on Sec. 9.3.6. to check the sensor
condition, and to remove the dust.
Mechanical problem (Drive Roller,
Sensor Roller, Drive Belt,
Conveyor)
1. Execute
Feed
and
Conveyor Motor
tests
on Sec. 9.3.6. to check the mechanical
condition.
2. Check whether the Drive Rollers, the
Sensor Rollers, the Drive belt, and the
conveyor to support the Drive Rollers are
assembled to the scanner, properly.
3. Check the surface of the Drive Rollers.
a. Configuration:
Is the roller shape irregular?
Replace the roller.
b. Check whether the roller surface is
dirty
Clean the surface.
4. Check whether the Drive Belt tension is
proper. (Refer to Sec. 8.3.6.)
Re-adjust the belt tension.
Conveyor Motor does not work
properly.
1. Execute
Conveyor Motor
test on Sec.
9.3.6. to check the motor
’
s rotating
condition.
2. Check the connection between the
Conveyor Motor and CN806 (POWER
Board).
3. Check signals (1
st
and 4
th
pins) on CN806
(POWER Board).
Note: Frequency
·
Approx. 1.4k to 6.4kHz (for KV-
S2025C/SU225C Series)
·
Approx. 1.8k to 11kHz (for KV-
S2045C/SU245C Series)
4. Replace the faulty cable.
5. Replace the Conveyor Motor.
Conveyor Motor circuit does not
work properly.
1. Execute
Conveyor Motor
test on Sec.
9.3.6. to check the motor
’
s rotating
condition.
2. Check the connection between CN805
(POWER Board) and CN1007 (CONTROL
Board).
3. Check a signal (Motor Drive: IC871 - 11
th
pin) on the POWER Board.
·
Approx. 2.8k to 12.8kHz (for KV-
S2025C/SU225C Series)
·
Approx. 3.6k to 22kHz (for KV-
S2045C/SU245C Series)
4. Check the soldering condition of IC871 on
the POWER Board and IC1035 on the
CONTROL Board.
5. Replace the faulty cable.
6. Replace IC871 or POWER Board.
7. Replace CONTROL Board.
70
KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series