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6. Trouble shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Is F-LCD
normal?
Assemble
Replace F-LCD
Yes
N
Check LCD connector
combination then LCD
test
with New LCD
Are insulators
on LCD and Key
PCB
Replace Insulators
N
Signal is normal in
2.62V(
TP4
) Signal
On CN301
Check solder and
repair CN301
Yes
N
Signals are normal in
DIF_CD(
TP1
),CS(
TP2
)
,WR(
TP3
),
On CN301
Check solder and
repair FL303
N
Yes
Yes
Содержание KC550
Страница 1: ...Date May 2008 Issue 1 0 Service Manual Model KC550 Service Manual KC550 Internal Use Only ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 155: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 156 ...
Страница 182: ...Note ...
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