LG LG-E960 - Page 127

4. TROUBLE SHOOTING
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4.10. 3 Main MIC troubleshooting
Main MIC signal is generate by MEMS MIC on Lower FPCB
Check the MIC signal by Loop back teat or
camcorder recording
Yes
No
START
No
Yes
Yes
Check the MIC hole to make
clear the voice signal path Is
voice signal ok?
Change the WCD9310(U5001)
Is voice signal ok?
END
END
END
Check the low FPCB
And check the voice signal
Is voice signal ok?
No
Change The main PCB
WCD9310(U5001)
4.10. 3 Main MIC troubleshooting
Main MIC signal is generate by MEMS MIC on Lower FPCB
Start
Check the MIC signal by Loop back test or
Camcorder Recording
Check the MIC
hole to make
clear the voice
signal path. Is
voice signal OK?
Change the Main PCB
END
YES
Check the Low
FPCB. And check
the voice signal.
Is voice signal OK?
Change the
WCD9310(U5001).
Is the voice
signal OK?
END
END
YES
YES
NO
NO
NO
NO
Main MIC