Panasonic KV-S5046H, Service Manual

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4. Mechanical problem (Drive
Rollers, Drive Belt) 1. Check the Starting Sensor’s mechanical
position and its status.
2. Execute
Conveyor Motor test in Sec. 9.3.6
to check the mechanical condition.
3. Check whether the Drive Rollers (1 and 2),
and Drive Belt, and also check whether the
conveyors to support the Drive Rollers are
put together into the scanner, properly.
4. Check the surfaces of the Drive Rollers (1
and 2).
a. Configuration:
Do the rollers swell irregularly?

Replace the rollers.
b. Whether the roller surfaces are dirty

Clean the surfaces.
5. Check whether the Drive Belt tension is
proper.

Re-adjust the belt tension.
U14 (Conveyor Jam3:
Paper did not reach the
Exit Sensor. 14 00 00 00 1. Document remains between
Starting Sensor and Exit Sensor.
Remove the document from the scanner.
2. Paper dust exists on or around
the Exit Sensor. 1. Clean up the dirt with cleaning paper or
cotton swab or soft and dry cloth.
(See Sec.7.)
2. Execute
Key/Sensor and Sensor Sensitive
Level tests in Sec.9.3.6 to check the sensor
condition.
3. Exit Sensor does not work,
correctly 1. Execute Key/Sensor test in the Sec. 9.3.6 to
check the sensor condition.
2. Check the sensor alignment is proper
(whether the sensor direction faces to its
reflector.)
3. Check the following connection and
soldering condition on each connector.
a. CN3003 (ENDING SENSOR Board)
to CN2004 (USR RELAY Board)
b. CN2001 (USR RELAY Board)
to CN1007 (CONTROL Board)
4. Check the following signals.
a. ENDING signal (CN2004-1st or
CN1007-4th pin)

Approx. 1 V (when none exists on the
Exit Sensor)
b. Check the reference signal for the
ENDING signal on the CONTROL Board.
IC0023-5th pin: 1.5 V or less
IC0025-6th pin: Approx. 1.5 V
c. Check comparator output signal.

IC0017-6th pin: 3.3 V (when no
document exists)
5. Replace faulty parts or cables.
4. Mechanical problem (Drive
Rollers, Drive Belt, Conveyor) 1. Execute Conveyor Motor test in Sec.9.3.6
to check the mechanical condition.
2. Check whether the Drive Rollers (2, 3),
Drive Belt, and the conveyor to support
the Drive Rollers are put together into
the scanner, properly.
3. Check the surfaces of the Drive Rollers
(2, 3).
a. Configuration:
Do the rollers swell irregularly?

Replace the rollers.
b. Whether the roller surfaces are dirty

Clean the surfaces.
4. Check whether the Drive Belt tension is
proper.
U16 (Exit Jam1: Paper
did not pass through
the Exit Sensor) 16 00 00 00 1. Document remains forward
Exit Sensor.
Remove the document from the scanner.
Error Code Possible Cause Check Point Remarks
Classified Code ST1 ST2 ST3 ST4