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Level 3 Repair
8-3-4. Microphone Part
Check microphone function
in voice call speaker mode
or in voice recording mode
Check Home key where MIC
is placed
for any damage (Tear in
FPCB, etc)
Check the voltage at
C517 = 1.65V
Check component soldering
L508,L509,C518,C519,SLC500
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Yes
Yes
Yes
status of
Yes
END
No
Change the Home key/MIC FPCB
No
Resolder or replace C517, U401
No
Resolder or replace L508,L509,C518,C519,SLC500
8-11
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