3. TROUBLE SHOOTING
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3.10.5 Ear-MIC troubleshooting
Ear MIC control signal is generate by MT6323(U4100).
-Earphone recognition fail
START
Reconnect earphone
Peconnect the main PCB
Change the Earjack socket(J6100)
When earphone inserted,
detect pin drop to 0V?
Detecting earphone is well?
Change the main PCB
END
END
END
Change the MT6582(U2100)
No
No
No
No
No
Yes
Yes
Yes
Yes
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