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Level 3 Repair
8-12
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8-3-4. Audio Working
z
Speaker Working
Operate speaker
NG
Check
Speaker
Connecting
Reconnecting SPK
NO
YES
Speaker break
down?
YES
Change Speaker
Module
NO
Signal on in
L512, L513?
Resolder
L512,L513
HDC501
YES
NO
Signal on in
C406, C407?
Resolder
C407, C408
Replace U401
YES
NO
Change main PBA