Panasonic KV-S1057C Service Manual page 65

Error Code
Classified Code ST1 ST2 ST3 ST4
F19: DRAM 89 00
Error
F31: Analogue 95 00
IC Error
F34: EEPROM 98 00
(IC28) Error
F60: Front-side 50 00
gain adjustment
error
Possible Cause
4. The Door Detector or its
monitor circuit does not
work correctly.
00 00 Access error to SDRAM (IC20,
IC21) on the CONTROL Board
00 00 Access error to Analogue
ICs (IC2) on the
CONTROL Board
00 00 Access error to EEPROM
(IC28)
00 00 1. The surface of Scanning
Glass (F) is dirty.
2. CIS (F) Unit does not work
properly.
3. Problem with Pixel data from
CIS (F) or from image
processing circuit
1. Perform the "Key / Sensor" test in Sec.
to check the sensor condition, while repeatedly
closing and opening the door.
2. Check the following connection and soldering
condition on each connector.
CN2101 (DOOR DETECTION Board) to
CN10 (CONTROL Board)
3. Check the following soldering condition.
(1) DOOR DETECTION Board
IC2101 and its surrounding circuits
(2) CONTROL Board
IC4, R433,R424
4. Replace faulty parts or boards.
1. Check the soldering condition of the following parts
on the CONTROL Board.
(1) R343 to R352, R357 to R364, R367 to R371,
R1220 to R1231, R1236 to R1243, R1247
2. Replace faulty parts or board.
1. Check the soldering condition of the following parts
and of their surrounding circuits on the CONTROL
Board.
(1) Analogue IC (IC2, IC3)
2. Replace faulty parts or board.
1. Check the soldering condition of the following parts
and of their surrounding circuits on the CONTROL
Board.
(1) EEPROM (IC5)
(2) CPU (IC4)
(3) R163,R168,R171,R172,R1175
2. Replace faulty parts or board.
Clean the surface with a soft and dry cloth.
1. Open the ADF Door and check the position of Ref-
erence Plate (F) after power-on and the error.
(1) White background : OK
(2)Black background : Check if the Slider which
drives the Reference Plate moves smoothly after
the ADF Door opens and closes.
2. Execute Focus test in Sec.
waveform of CIS output.
3. Check that LED (F) lights during Focus test.
4. Check the following connections and soldering
condition on each connector.
a. CIS (F) Unit to CN1(CONTROL Board)
5. Check the power supply for LED.
(1) CN1-7th pin, F8: 7.0 V
(2) L3,L6,L7,Q7,Q8,Q9
6. Replace faulty parts or boards.
1. Check the connection and soldering condition of
the following parts.
(1) between CIS (F) and CN1 (CONTROL Board)
2. Check the soldering condition of the following parts
and of their surrounding circuits on the CONTROL
Board.
(1) IC43(FPGA) Only for S1057C or SL1066
(2) IC2 (AFE)
(3) IC7 (D/A Conv.)
3. Monitor the following CIS Timing signals on the
CN1.
(1) CLK (CN1-5th pin): See Fig. 10.2.1.
(2) SI (CN1-7th pin)
4. Replace faulty parts or boards.
65
Check Point
Test
( ) to check the
Test P.47
: See Fig. 10.2.2.
( )
P.47