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Level 3 Repair
8-13
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8-3-4. Audio
Speaker
Operate speaker
NG
Check
Speaker
Connecting
Reconnecting SPK
NO
YES
Speaker break
down?
YES
Change Speaker Module
NO
Signal on in
L407, L409?
L408, L410?
Resolder L407,L409
Resolder L408,L410
YES
NO
Signal on in
C309, C310?
Resolder C309, C310
Replace U301
YES
NO
Change main PBA
END