LG GT350 Service Manual page 71

4. TROUBLE SHOOTING
START
Check LCD connector
combination then LCD test
with New LCD
Is LCD FPCB
normal?
Signal is normal on
DIF Signal
FL401, FL402, FL403
Assemble
LGE Internal Use Only
No
Yes
No
Yes
- 72 -
Replace LCD FPCB
Check solder and repair
Damaged filter
FL401 FL402
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FL403
Only for training and service purposes