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Level 3 Repair
8-14
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9-3-3. Audio Working
z
Speaker(Receiver) Working
Operate speaker
NG
Connect
Speaker Module
FPCB correctly?
Connect correctly
NO
YES
Speaker break
down?
YES
Change speaker
ASSY
NO
Signal on in
C501,C512
(SPK mode)/
C502,C513
(RCV mode)?
SPK ASSY
FPCB break
down?
YES
YES
Change
SPK ASSY
NO
NO
Check 1,3(SPK mode) /
7,9(RCV mode) pins in
HEA500
Signal on in
C506, C507
(SPK mode)?
YES
Replace U500
NO
Change main PBA