Panasonic KV-S5046H, Service Manual

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2. DFP Pressure Motor control
circuit does not work, properly. Refer to the 8th item on Classified Code U12.
3. Rotation from DFP Pressure
Motor is not normally transferred to
the DFP Adjustable Drive Shaft
that controls DFP Roller's position. 1. Check the ADF mechanism. (See Sec.6.)
2. Execute
DFP Pressure Drive in Sec. 9.3.6
to check the ADF mechanism.
4. DFP Home Detector does not
work, correctly. 1. Execute Key/Sensor test in the Sec. 9.3.6
to check the detector condition.
2. Check whether the tip of the DFP Adjustable
Drive Shaft interrupts the detector.
3. Check the following connection and
soldering condition on each connector.
a. CN3002(DFP HOME SENSOR Board) to
CN2003 (USR RELAY Board)
b. CN2001 (USR RELAY Board) to CN1007
(CONTROL Board)
4. Check "DFP_HOME" signal.: 5 V (when the
tip of the DFP Adjustable Drive Shaft
interrupts IC3001 (DFP Home Sensor) on
the DFP HOME SENSOR Board.)

CN1007-2nd pin and IC0017-5th pin
5. Check the soldering condition of IC0017 on
the CONTROL Board and repair it.
6. Replace faulty parts or boards.
F60 (Front-side gain
adjustment error) 50 00 00 00 1. Scanning Glass (F) is dirty. Clean the glass surface. (See 7.2.)
2. CIS (F) Unit does not work
properly. 1. Check if the White Standard Sheet is not
dirty and not peeled, then is stuck properly.
2. When the scanner starts after turning on it,
the reference plates rotates and stops once
while the green light blinks, then open the
ADF door before they rotates again.
Check if the White Standard Sheet on the
reference plates stop at the correct position
referring to 8.4.5 reference Plate(F) and
8.5.27 reference Plate(B).
3. Execute CIS Level test in Sec.9.3.6 to
check the peak level.
4. Check that LED (F) lights during CIS Level
test.
5. Check the following connections and
soldering condition on each connector.
a. CIS (F) Unit to CN2022(CIS (F)
RERAY Board)
b. CN2023, CN2024(CIS (F) RERAY Board)
to CN1003, CN1004 (CONTROL Board)
6. Check the power supply for LED.

IC2017-5th pin: 3.3 V

CN2024-1st pin: 3.9 V
7. Replace faulty parts or boards.
3. Pixel data from CIS (F) Unit or
image processing circuit
has some problems. 1. Check the following connections and
soldering condition on each connector.
a. CIS (F) Unit to CN2022 (CIS (F) RERAY
Board)
b. CN2023,CN2024 (CIS (F) RERAY Board)
to CN1003,CN1004(CONTROL Board)
2. Check the following power supply to
CONTROL Board.

CN1004-1st pin (CONTROL Board): 3.9 V
3. Check the soldering condition of the
CN1004,IC0030, and their surrounding
circuit on the CONTROL Board.
4. Replace faulty parts or boards.
Error Code Possible Cause Check Point Remarks
Classified Code ST1 ST2 ST3 ST4