LG KP500 - Microphone Trouble

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
- 81 -
5.7 Microphone trouble
Check Points
- Microphone hole
- Mic. Bias & signal line
5
6
7
8
9
1
1
0
11
12
13
1
4
15
16
1
7
1
8
1
9
2
2
0
3
4
CN501
AXK720147G
E
N
B
Y
0
0
1
9
5
0
1
I
C
V
L0
50
5
10
1
V
1
5
0
F
R
705AV
0
86
8
0
5
R
0
86
6
0
5
R
3
0
5AV4
0
5AV
10
5
BF
V
B
AT
0
86
7
0
5
R
n
22
4
15C
n22515
C
615
C
0
0
5
L
H
n001
u2.2
2
0
5
0
5
A
V
20
5
BF
12
5
C
u
1
7
1
5
C
p
7
2
ICV
L
05
0
5101V150F
R
6
0
5
A
V
)
3
(TU
O_
PK
)
0
(TU
O_
PK
)
2
(TU
O
_
PK
P_C
I
M
V
N_
C
I
M_
N
I
AM
P_
CI
M_
N
I
AM
N
_
C
IMV
MIC101
2
0 Pin Connector
Pin14 : MAI
N
_MIC_P
Pin13 :
VMIC_P
Pin15 : MAI
N
_MIC_N
Pin1
2 : VMI
C
_N
IN
D
6
01C
u1
9
01
R
VBAT
M
IC
101
S
P
M02
0
4
H
E
5
-
P
B
-
3
S
U
M
Y0
0
1
0
6
03
G
1
2
G
2
3
O
1
P
4
13
14
15
1
6
1
7
18
192
20
3
4
5
6
7
8
9
ENB
Y0
020
1
01
AX
K
82
0
14
5
WG
CN101
1
10 11
1
2
p72
2
01C101C
p7
2
2
01
AV
EV
L
5M
02200
SE
V
Y000
3
901
101AV
)
5
(N
I
_
P
K
)
2(
TU
O
_PK
)
3(TUO_P
K
)0
(
TUO
_
PK
DNE
R_
D
EL
)3(
N
I_PK
TP1
TP2
TP3