Panasonic KV-S1025C SERIES Service Manual page 82

Error Code
Classified Code ST1 ST2
F33: USB IC 97 00
(IC1010) Error
F34: EEPROM 98 00
(IC1011) Error
F37: Overrun Error 9B 01
F60: Front-side 50 00
gain adjustment
error
Possible Cause
ST3 ST4
00 00 Access error to USB Controller
(IC1010)
00 00 Access error to EEPROM (IC1011)
xx xx Overrun error occurred during
image scanning process
00 00 1. The surface of Scanning Glass
(F) is dirty.
2. The Scanning Glass (F) is not
attached to the scanner properly.
3. Lamp (F) does not light or gets
dark.
4. Problem with Pixel data from
CCD (F) Board or from image
processing circuit
1. Check the soldering condition of the following parts
and of their surrounding circuit on the CONTROL
Board.
(1) USB-C (IC1010)
(2) Gate Array (IC1007)
(3) JK1001
(4) CPU (IC1016)
2. Replace faulty parts or board.
1. Check the soldering condition of the following part
and of their surrounding circuit on the CONTROL
Board.
(1) EEPROM (IC1011)
(2) CPU (IC1016)
2. Replace faulty parts or board.
1. Confirm the firmware version.
1. Clean the surface with Roller Cleaning Paper.
1. Check the condition of the glass
attachment.
2. Reattach the glass (See 8.2.7.)
1. Perform the "CCD Level" test in Sec. 9.3.6. to check
whether the Lamp (F) lights or not.
2. Check whether control signals are supplied to lamp
(F) drive circuit (Lamp Drive Board (F)), normally.
(1) Connection between CN1008 (CONTROL Board)
and Lamp Drive Board (F)
(2) Monitor the following signals, executing "CCD
Level" test in Sec.9.3.6.
• CN1008-6th (FLAMP_ON): Approx. +3 V
• CN1008-7th: +16 V
3. Check the Lamp Drive Board (F)'s soldering condition
and the connection to the Lamp (F).
4. Check whether Lamp (F) is damaged, or broken.
5. Replace faulty parts or board.
1. Check the connection and soldering condition of the
following parts.
(1) between CN2001 (CCD Board (F)) and CN1001
(CONTROL Board)
2. Check the soldering condition of the
following parts and of their surrounding circuit on the
CCD Board (F).
(1) IC2002
(2) IC2003
3. Check the soldering condition of the following parts
and of their surrounding circuit on the CONTROL
Board.
(1) IC1007 (Gate Array: especially 68th to 71st pins)
(2) IC1004, IC1005 (A/D Conv.)
4. Monitor the following CCD Timing signals on the
CN1001.
(1) FCCD_TG: See Fig. 10.1.1.
(2) FCCD_CLK1: See Fig. 10.1.2.
(3) FCCD RS: See Fig. 10.1.3.
(4) FCCD CP: See Fig. 10.1.4.
5. Replace faulty parts or boards.
82
Check Point