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5.7 Microphone trouble
Check Points
- Microphone hole
- Mic. Bias & signal line
VBAT
1
2
3
4
5
6
7
8
9
10
2 0
5 C
1 2
u 1
AXK720147G
ENBY0019501
20 Pin Connector
VBAT
N E
D
L
D E
R _
K
_ P
N I
) 3 (
K
_ P
N I
) 5 (
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CN501
20
19
18
17
16
15
14
13
12
11
V
5 A
3 0
V
5 A
4 0
ICVL0505101V150FR
Pin15 : MAIN_MIC_N
Pin14 : MAIN_MIC_P
Pin13 : VMIC_P
CN101
Pin12 : VMIC_N
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
AXK820145WG
ENBY0020101
5 R
6 0
6
0 8
P K
O _
T U
) 0 (
5 R
7 0
6
0 8
P K
O _
T U
) 2 (
5 R
8 0
6
0 8
P K
O _
T U
) 3 (
5 C
4 1
2
n 2
5 C
5 1
2
n 2
5 L
0 0
1
0 0
H n
V
5 A
5 0
V
5 A
6 0
V
5 A
7 0
5 C
6 1
. 2
u 2
ICVL0505101V150FR
P K
O _
T U
) 0 (
P K
O _
T U
) 2 (
P K
O _
T U
) 3 (
1 C
1 0
1 C
2 0
1 C
6 0
V
1 A
1 0
V
1 A
2 0
2
p 7
2
p 7
u 1
SEVY0003901
EVL5M02200
- 81 -
5. Trouble shooting
TP1
F
5 B
1 0
M
A
N I
M _
C I
N _
F
5 B
2 0
M
A
N I
M _
C I
P _
TP2
V
M
C I
P _
TP3
5 C
7 1
2
p 7
V
M
C I
N _
MIC101
1
SPM0204HE5- PB- 3
O
2
SUMY0010603
G1
3
G2
4
P
1 R
9 0
D
I N
LGE Internal Use Only
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Table of Contents
Troubleshooting
