LG GT350 Service Manual page 75

4. TROUBLE SHOOTING
START
Check Speaker 's
Combination with PCB.
Yes
Input Signal is
Good
(C313,C314) ?
Yes
Output Signal is
High
(R303,R309)?
Yes
Assemble
LGE Internal Use Only
LG Electronics
Audio Subsystem
No
Connect Speaker
completely.
No
Replace Main Board
No
Replace Audio
AMP(U303)
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TP1
Speaker contact
C313
C314
TP2
R303
R309
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