LG LG-E960 - Page 129

4. TROUBLE SHOOTING
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4.10. 5 Ear-MIC troubleshooting
Ear MIC control signal is generate by TWL6040 and OMAP4430.
Check the MIC signal by Loop back teat
And reconnect the FPCB Connector on main PCB.
Check the FSA8008(U5003)
No
No
No
START
Change The Upeer FPCB
No
No
No
Detecting headset insert well?
Yes
Yes
Yes
Yes
Check the left signal and
detection line became short
when headset inserted
Change the WCD9310(U5001)
Detecting headset insert well?
END
END
END
Change The main PCB
FSA8008(U5003)
Upper Connector