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3. TROUBLE SHOOTING
3.11.4 Sub MIC
3.11 Audio Part
It’s operating speakerphone.
Checking Flow
Circuit Diagram
TP1(FB4102) Signal line
MIC4101
TP2
Main MIC
Image
No
START
Check surface mount status
of MIC4100
END
Mic is OK?
Yes
Check signal at TP2
Signal is ok?
No
Yes
Surface mount again
Check signal TP1
Signal is ok?
TP2: (C4128)
Replace PCB
No
Yes
No
Replace MIC4100
Yes
TP1: (FB4102)
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Содержание LG-M700TV
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