3. TROUBLE SHOOTING
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3.8.6 Ear-Mic Trouble Shooting
Ear MIC control signals are generate by MT6575(U200)
Case A. Disable detected headset insert.
START
Didn’t display headset icon and play sound via
speaker although headset insert
Change Main Board
Check the left signal and detection line short
when headset inserted?
Change Ear Jack Connector.
Sound play via headset?
Yes
Yes
Yes
Change MT6577(U201).
Mic works well?
No
No
No
END
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