U13 - Philips KV-S5055C Service Manual

Error Code
Classified Code ST1 ST2 ST3 ST4
U13 (Conveyor Jam2: 13
Paper did not reach the
Starting Sensor.)
Possible Cause
5. Conveyor Motor does not work
properly.
6. Conveyor Motor circuit does not
work properly.
7. DFP Pressure Motor does not
work properly.
8. DFP Pressure Motor circuit does
not work properly.
9. Paper Feed Roller module or
DFP Roller is not assembled
properly.
10. Rollers (Paper Feed,
Separation, DFP) are dirty.
11. Rollers have reached their life
expectancy.
00 00 00 1. Document remains between
Starting Sensor and Slip Detect
Sensor.
2. Paper dust exists on or around
Starting Sensor.
Check Point
1. Check the motor mechanism condition by
carrying out Conveyor Motor test.
(See 9.3.6.)
2. Check the following connection and
soldering condition on each connector.
→ Conveyor Motor to CN4005
(DRIVE Board)
3. Check the following signals on the DRIVE
Board. → CN4005-1, 3, 4, and 6th pins:
See Fig. 3.
4. Replace faulty cables.
5. Replace Conveyor Motor.
1. Check the following connection and
soldering condition on each connector.
→ CN1002 (CONTROL Board) to CN4002
(DRIVE Board)
2. Check the soldering condition of IC4007
and its surrounding parts.
3. Check the following signals on the
DRIVE Board.
a. IC4007-12th pin (CLK): See Fig. 4.
b. IC4005-19th pin (VREF): 2.3V or less.
c. IC4005-15th pin (ENABLE): 5 V
(when executing Conveyor Motor test)
4. Check the soldering condition of IC0015 on
the CONTROL Board to repair it.
5. Replace faulty parts or boards.
1. Check the motor mechanism condition by
carrying out DFP Pressure Drive test.
(See 9.3.6.)
2. Check the following connection and
soldering condition on each connector.
→ DFP Pressure Motor to CN4009 (DRIVE
Board)
3. Check the following signals on the DRIVE
Board.
→ CN4009-1 to 4th pins: See Fig. 5.
4. Replace faulty cables.
5. Replace DFP Pressure Motor.
1. Check the following connection and
soldering condition on each connector.
→ CN1002 (CONTROL Board) to CN4002
(DRIVE Board)
2. Check the soldering condition of IC4006
and its surrounding parts.
3. Check the following signals on the
DRIVE Board.
a. IC4006-1st and 2nd pins (PHA and PHB):
See Fig. 6.
b. IC4006-24th pin (VREF): 2.3V or less.
4. Check the soldering condition of IC0015
on the CONTROL Board to repair it.
5. Replace faulty parts or boards.
Refer to the 1st item on Classified Code U11.
Refer to the 2nd item on Classified Code U11.
Refer to the 3rd item on Classified Code U11.
Remove the document from the scanner.
1. Blow off the dirt with the accessory blower.
(See Sec.7.)
2. Execute Key/Sensor and Sensor Sensitive
Level tests in Sec. 9.3.6 to check the sensor
condition.
109
Remarks