4. TROUBLE SHOOTING
- 9 -
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
`\VX[^
4.11 Microphone Trouble
TEST POINT
CIRCUIT
Figure 4.12
2. TROUBLE SHOOTING
MIC201
TP05 :
C148
TP06 :
C147
U102
TP02 :
L205
U102
U
U
U
U
UU
U
TP01 :
C107
TP03 :
C113
TP04 :
C114
U
UUU
U
TP01
TP02
TP03
TP04
TP05
TP06
1n
C107
C110
220n
47p
C113
C115
47p
C117
47p
VMIC
T1
A1
T16
A16
T10
P11
R10
P13
P12
T13
R13
T12
R12
MICN1
MICP1
MICN2
MICP2
VMIC
VUMIC
ACD
AGND
VREF
VSSRF2
NC2
VSSCORE4
NC4
1n
C132
C114
47p
VHSMIC
HS_MIC_N
JACK_DETECT
MIC_P
HS_MIC_P
MIC_N
TP01
TP04
24
2
R
I
N
D
50
2L
n0
01
VA209
C260
39p
C252
39p
C261
39p
VA215
C148 0.1u
0.1u
C147
VA208
10u
C253
C254
39p
VMIC
MIC201
6
5
4
3
2
1
OUT
G1
G2
G3
PWR
G4
MIC_P
MIC_N
MIC_GND
REPLACE WITH BSE
MICROPHONE
U10
TP03
TP0
TP06
TP05