Only For Training And Service Purposes - LG GM200 Service Manual

CHECKING FLOW (Woofer)
Check spk module or change.
Can you hear sound from
speaker ?
No
Can you hear sound from
Earphone ?
No
Can you see the AC waveform?
(Check C228,C232 Pad.)
No
Resolder U103
Or Change Main Board.
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Only for training and service purposes

Yes
Speaker
Working well!!
Yes
Can you see the AC waveform?
(Check L201,L202 Pad.)
No
1st : Resolder : C201, C203,
R203, R206
2 nd : Resolder : U201
Yes
1 :Resolder C202, C204, R204
st
, R207,C217
2 nd : Resolder : U202, U205
- 95 -
4. TROUBLE SHOOTING
Yes
1 st : Resolder L201, L202
2 : Resolder CN201
nd
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