Mic Trouble - LG C1100 Service Manual

4.8 Mic Trouble

Test Points
Soldering
check
MIC101
Circuit Diagram
The signal flow of the
microphone to ABB
R128
100
R132
100
C163
39p
C161
C160
39p
0.1u
R134 2.2K
C160 R132
R127 R126
Figure 4-20.
CLOSE TO MIC
VA151 VA152
C162
39p
- 69 -
4. Trouble Shooting
R128
C193
VMIC
R126 1K
TC151
C193
R127
2.2K
39p
10u
MIC101
2
1
OB4-15L42-C33L