Microphone Trouble - LG KP110 Service Manual

4. TROUBLE SHOOTING

4.13 Microphone Trouble

TEST POINT
TP4
TP2
TP3
CIRCUIT
MAIN_MIC
VINNORP
VINNORN
LGE Internal Use Only
Figure 4.13
2V5_VMIC
R204
2.2K
R205
100ohm
C206
39p
C208
R206
100ohm
0.1u
R208
C210
39p
2.2K
- 64 -
TP1
R202
1K
C205 C202
27p 10u
ECTH0001701
MIC201
C207
2
1
39p
OB4-15L42-C33L
C211
VA203 VA204
39p
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Only for training and service purposes
TP1