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4.11 Microphone Trouble
4.12 Microphone Trouble
TEST POINT
TP4
TP6
TP5
TP3
TP7
CIRCUIT
MAIN MICROPHONE
MAIN_MICP
MAIN_MICN
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 4.11.1
Figure 4.12.1
MICBIAS
TP2
R413
2.2K
TP
TP5 TP6
C419
R411
100
0.1u
C404
47p
C420
R412
100
0.1u
TP4
TP7
TP3
TP6
TP5
TP4
TP7
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4. TROUBLE SHOOTING
4. TROUBLE SHOOTING
TP2
TP2
C403
10u
VA401
C421
C422
R418
2.2K
DNI
DNI
R410
0
88/140
TP1
TP1
TP1
2
1
MIC401
VA402
SEVY0005402
LGE Internal Use Only
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