KV-S4065CL, KV-S4065CW, KV-S4065CWCN, KV-S4085CL, KV-S4085CW, KV-S4085CWCN - Panasonic Other Service Manuals Service Manual (repair manual). Page 120

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3. Starting Sensor does not work
correctly.

1. Execute “Key/Sensor” test in Sec. 9.3.6
to check the sensor condition.
2. Check the sensor alignment is proper.
(whether the sensor direction faces its
reflector)
3. Check the following connections and
soldering condition on each connector.
  a. CN3012 (STARTING SENSOR Board) to
       CN2009 (RELAY(UPPER) Board)
  b. CN2008 (RELAY(UPPER) Board) to
       CN1015 (CONTROL Board)
4. Check the following signals.
 a. STARTING signal (CN1015-19th pin)
     

→

 0 V (when none exists on the Starting

         Sensor)
 b. Check the reference signal for the
      STARTING signal on the CONTROL signal.
      

→

 IC1015-6th pin: 1.5 V or less

      

→

 IC1018-5th pin: Approx 1.5 V

 c. Check comparator output signal.
     

→

 IC1018-7th pin: 3.3 V (when no document

          exists)
5. Replace faulty parts or boards.

4. Mechanical problem (Drive
 Roller, Drive Belt, Conveyor)

1. Execute “Feed Motor” and “Conveyor
    Motor” tests in Sec. 9.3.6 to check the
    mechanical condition.
2. Check whether the Drive Rollers (especially
    Drive Roller 1), the Drive belt, and the
    conveyor to support the Drive Rollers are
    assembled properly in the scanner.

5. Conveyor Motor does not work
properly.

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.
   

→

 Separation Motor to CN4011(DRIVE

         Board)
3. Check the following signals on the DRIVE
Board.
   

→

 CN4011-1, 3, 4, and 6th pins:  

         See Fig. 7.
4. Replace faulty cables.
5. Replace the Conveyor Motor.

6. Conveyor Motor circuit does not
work properly.

1. Check the following connections and
    soldering condition on each connector.
   a. CN1002 (CONTROL Board) to CN4004
      (DRIVE Board)
   b. CN1003 (CONTROL Board) to CN4005
      (DRIVE Board)
   c. CN1001 (CONTROL Board) to CN4003
      (DRIVE Board)
2. Check the soldering condition of IC4005 and
    its surrounding parts.
3. Check the following signals on the DRIVE
    Board.
    a. IC4005-11th pin (CLK): See Fig. 8.
    b. IC4005-7th pin (VREF): 2.3 V or less.
    c. IC4005-15th pin (ENABLE): 5 V
        (when executing Conveyor Motor test)
4. Check the soldering condition of IC1028 on
    the CONTROL Board to repair it.
5. Replace faulty parts or boards.

U13 (Conveyor Jam2:
Paper did not reach the
Paper Jam Sensor.) 

13

00

00

00 1. Document remains between

Starting Sensor and Paper Jam
Sensor

Remove the document from the scanner.