LG LG-K430DSF - Page 69

69
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3. TROUBLE SHOOTING
3.10.5 FM_Radio
Disable detecting headset insert or No FM sound from Earphone, Check the Ear Mic and MT6625L
Checking Flow
Image
Didn’t display headset icon and Didn’t play FM
sound via headset although headset insert
Change Main Board
Start
Change Ear Jack
Connector.
FM Sound play via
headset?
Yes
No
No
Check the left signal
and detection line short
when headset inserted?
Works well,
Yes
Yes, but still not works
Change
MT6625L(CN6814).
Mic works well?
Yes
No
End
Circuit Diagram
MT6625L
Jack detect
Voltage Level Check at R6201
- 1.8V(before insert)
- low(after insert)