3. TROUBLE SHOOTING
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3.9.5.2 Headset Mic. trouble
Ear-Mic. path as below :
MSM8226 -> WCD9302 HPH_L / HPH_R -> Headset
Replace component FB6600
Replace component U6100
Replace component R6616, C6611
Replace component U6100
Replace Headset Jack (J6600)
Check Main Board
TP1(MIC)
When headset inserted.
Check Main Board
TP2(MIC_IN2_N) is GND level?
Headphone icon display on Upper
right LCD ?
No
No
No No
No
No
Yes
Yes
Yes Yes
Yes
Yes
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