LG KP105 - Microphone Trouble

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Only for training and service purposes
4. TROUBLE SHOOTING
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4.10 Microphone Trouble
TP2
Microphone component
TP1
TEST POINT
CIRCUIT DIAGRAM
MAIN_MIC
2.2K
R230
MIC201
OB4-15L42-C33L
1
2
1K
R218
R227
100ohm
33nF
C216
EVL5M02200 VA202 EVL5M02200 VA201
C226
C213
39p
100ohm
R225
10u
2.2K
R223
VMIC
39p
C214
33nF
C220
C219
39p
C227
39p
MIC_P
MIC_N
TP1
TP2