Samsung GT-C3520 - Speaker Working

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Level
3
Repair
8-9
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8-3-3.
Speaker Working
Operate speaker
NG
Check
Speaker
Contact
ReContact
NO
YES
Speaker break
down?
YES
Change Speaker
NO
Change main PBA
YES
Replace
the components
NO
Check L313,L31
4,
C318,C323,
ZD310,ZD324