Samsung GT-S5260 Service Manual page 41

Level 3 Repair
8-3-4. Audio Working
 Speaker Working
Operate speaker
NG
Check
Speaker
Connecting
YES
Speaker break
down?
NO
Signal on in
C309, C318?
NO
Change main PBA
NO
YES
YES
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Reconnecting SPK
Change Speaker
Module
Resolder
C309, C318
Replace U300
8-14