Panasonic KV-SS080 Service Manual page 38

Error Code
Classification ST1 ST2 ST3 ST4
Code
F11: AC
Sent data time-out
error
F12: AD 00
Read data time-out
error
F21: 04
RAM Read / Write
error
Possible Cause
00 00 00 1. Carriage-feed mechanism
has some problems.
2. Motor drive signals from the
CONTROL Board are not
transmitted to the Carriage
Motor.
3. Scanner is not be put on a
horizontal level area.
00 00 1. Carriage-feed mechanism
has some problems.
2. Motor drive signals from the
CONTROL Board are not
transmitted to the Carriage
Motor.
3. Scanner is not be put on a
horizontal level area.
00 00 00 1. SDRAM Read / Write error
occurs.
Check Point
1. Restart the scanner, and then execute
"Carriage Drive" in Sec. 9.3.5 to
check whether this phenomenon is
reproduced.
2. Check the mechanical condition of
the belt and gears on the Motor Assy.
3. Check the belt tension controlled by the
Tension Plate Assy.
4. Check the Shaft for the carriage is
properly assembled.
5. Replace faulty parts.
1. Check the following connection and
soldering condition on each connector:
(1) JP3 (CONTROL Board) to Carriage
Motor
(2) JP2 (CONTROL Board) to AC
Adaptor
2. Replace faulty parts.
Set the scanner on a horizontal level area.
1. Restart the scanner, and then execute
"Carriage Drive" in Sec. 9.3.5 to
check whether this phenomenon is
reproduced.
2. Check the mechanical condition of
the belt and gears on the Motor Assy.
3. Check the belt tension controlled by the
Tension Plate Assy.
4. Check the Shaft for the carriage is
properly assembled.
5. Replace faulty parts.
1. Check the following connection and
soldering condition on each connector:
(1) JP3 (CONTROL Board) to Carriage
Motor
(2) JP2 (CONTROL Board) to AC
Adaptor
2. Replace faulty parts.
Set the scanner on a horizontal level area.
1. Check the soldering condition of
SDRAM, ASIC, and their surrounding
circuits on the CONTROL Board.
2. Replace the CONTROL Board.
38
Remarks