Microphone Trouble - LG -A130 Service Manual

4. TROUBLE SHOOTING

4.12 Microphone Trouble

TEST POINT
TP4_C203
TP5_C204
CIRCUIT
MIC_P
C223
DNI
MIC_N
LGE Internal Use Only
Figure 4.12
VMIC
TP4
C203 33n
R237 100
TP4
C224
47p
C204 33n
R238 100
TP5
TP5
- 96 -
2. TROUBLE SHOOTING
R240
1K
TP1
C221 C222
R201
DNI 10u
2.2K
R269
C239 C240 VA206
2.2K
DNI DNI
Copyright © 2010 LG Electronics. Inc. All right reserved.
TP2_MIC201
TP3_MIC201
TP1_C222
TP1
TP2
MIC201
TP2
2
C272
1
18p
TP
TP3
VA201
Only for training and service purposes