Microphone Trouble - LG KG270 Service Manual

4.10. Microphone Trouble

TEST POINT
Microphone component
R300
CIRCUIT DIAGRAM
VINNORP
VINNORN
MAIN_MIC
R304
C306 0.1u
100ohm
C307
0.1u
R307
C309 0.1u
100ohm
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4. TROUBLE SHOOTING
MIC.P
VMIC
R300
1K
R301
C303 C304
39p 10u
2.2K
C308
39p
R309
2.2K
OB4-15L42-C33L
2
1
MIC300