LG LG-D618 - Trademarks and DivX HD

3. TROUBLE SHOOTING
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Only for training and service purposes
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3.9.5 Ear-MIC troubleshooting
3.9.5.1 Headset Sound trouble
Ear-Mic. path as below :
MSM8226 -> WCD9302 HPH_L / HPH_R -> Headset
Replace component U6100
Replace component U6100
Replace component U6100
Replace component U2100
Replace Headset Jack (J6600)
Check Main Board
TP1(MIC)
When headset inserted.
Check Main Board
TP2(HPH_L), TP3(HPH_R),
Check Main Board
TP4(-NCP_VNEG), TP5(NPC_C1P)
Headphone icon display on Upper
right LCD ?
No
No
No No No
Yes
Yes
Yes
Yes
START
End
Yes