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Only for training and service purposes
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5. TROUBLE SHOOTING
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