Read Panasonic KV-S3065CL / KV-S3065CW (serv.man4) Service Manual online
Error Code
Possible Cause
Check Point
Remarks
Classified Code
ST1
ST2
ST3
ST4
U23
(Double feed
error)
(Double feed
error)
1C
00
xx
00
Double feed
does not
occur.
does not
occur.
1. Double Feed
Detector (G) does not
work, properly.
Detector (G) does not
work, properly.
1.
Execute Double Feed test in Sec.9.3.6 to
check the detector condition.
check the detector condition.
2.
Check whether the Double Feed Detector
(G) is aligned properly.
(G) is aligned properly.
3.
Check the following connection and
soldering condition on each connector.
soldering condition on each connector.
a.
Double Feed Detector (G) to CN5031
(RELAY (UPPER) Board)
(RELAY (UPPER) Board)
b.
CN5022 (RELAY (UPPER) Board) to
CN1014 (CONTROL Board)
CN1014 (CONTROL Board)
4.
Check the following parts’ soldering
condition to repair it.
condition to repair it.
a.
CONTROL Board
IC1024 (43, 44, 45
th
, and 46
th
pins),
IC1018
b.
RELAY (UPPER) Board
IC5013, Q5018, Q5020, Q5021,
Q5022, Q5024, Q5025, Q5027,
Q5028, Q5029, and the surround
circuit
Q5022, Q5024, Q5025, Q5027,
Q5028, Q5029, and the surround
circuit
5.
Check the following signals.
a.
DC 24V signal (CN5022-9
th
pin)
b.
JS_CLK (CN5022-11
th
pin)
→ 200 kHz
c.
USOUND_S1 (CN5031-1
st
pin)
→ 200 kHz
6.
Replace faulty parts or boards.
2. Double Feed
Detector (R) does not
work, properly.
Detector (R) does not
work, properly.
1.
Execute Double Feed test in Sec.9.3.6 to
check the detector condition.
check the detector condition.
2.
Check whether the Double Feed Detector
(R) is aligned properly.
(R) is aligned properly.
3.
Check the following connection and
soldering condition on each connector.
soldering condition on each connector.
a.
Double Feed Detector (R) to CN5011
(RELAY (LOWER) Board)
(RELAY (LOWER) Board)
b.
CN5007 (RELAY (LOWER) Board) to
CN1013 (CONTROL Board)
CN1013 (CONTROL Board)
4.
Check the following parts’ soldering
condition to repair it.
condition to repair it.
a.
CONTROL Board
IC1024 (117
th
pins)
b.
RELAY (LOWER) Board
IC5000, IC5001, Q5005, Q5006, and
the surround circuit
the surround circuit
5.
Check the following signals on the RELAY
(LOWER) Board.
(LOWER) Board.
a.
IC5001-7
th
pin: DC 12 V
b.
IC5000-7
th
pin: See Fig.10.2.5.
6.
Replace faulty parts or boards.
111
KV-S3065CLSERIES / KV-S3065CWSERIES
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