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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
TEST POINT
CIRCUIT
Figure 4.12
MIC200
U604
MIC200
TP2
TP3
TP1
TP4
MIC
C207
1u
R202
1K
VA205
ICVS0505500FR
100nH
L206
27p
C212
C209
27p
C202
DNI
2V5_VMIC
L203
100nH
R206
2.2K
L205
100nH
47p
C206
VA204
EVLC5S0250
10u
C201
V
MIC_N
MIC_P
VMIC_GND
3
COM1
9
COM2
6
GND
IN1
4
IN2
8
5
NC1
NC2
7
NO1
2
NO2
10
V+
1
U604
DG2735DN-T1-E3
R618
100K
0.1u
C661
2V5_VMIC
MIC_P
BB_MIC_P
MM_MIC_P
MIC_SEL
TP2
TP3
TP1
TP4
TP5