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8-3-3. Audio Working
Speaker Working
Operate speaker
NG
Check
Speaker
Connector
YES
Speaker break
down?
NO
Signal on in
L508, L509?
NO
Signal on in
C406, C407?
NO
Change main PBA
NO
YES
YES
YES
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Resolder
Change Speaker
Resolder
L508,L509
SPK ASSY
Resolder
C406, C407
Replace U400
7
8-11
Level 3 Repair
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