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3.12.5.2 Headset Mic. trouble
Ear-Mic. path as below :
MSM8926-2 -> WCD9302 MIC2_INP/ MIC2_INM -> Headset
START
Headphone icon display on Upper
right LCD ?
Yes
Replace Headset Jack (J6600)
Check Main Board
TP1(MIC)
When headset inserted.
Replace component U6600
End
LGE Internal Use Only
Yes
No
No
Yes
TP2(MIC_IN2_N) is GND level?
No
Replace component R6616
Yes
Check Main Board
No
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3. TROUBLE SHOOTING
Replace component U6100
Only for training and service purposes
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