Table of Contents
Advertisement
3.10.2 Function KEY back-light illumination
S-GOLD3H-LC is control the Tr for Function KEY back-light illumination.
V
B
A
T
R
1
0
1
2
2 .
K
Q
R
1
0
8
1
K
B
L
3
K
R
1
1
2
1
0
K
[Figure 3.10.2-1] Function KEY back-light LED circuit diagram
3.11 LCD back-light illumination
AAT3169 is high efficiency charge pump LED driver using proprietary mAhXLife technology. The load
and supply conditions determine whether the charge pump operates 1X, 1.5X, or 2X mode.
L
C
D
_
B
L
_
C
T
R
L
V
A
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
N
A
I V
R
1
0
2
2
2 .
K
S
S
S
S
C
C
T -
T -
W
W
H
H
1
1
0
0
4
4
H -
H -
L
L
1
0
1
R
1
0
9
1
K
B
L
1
T
C
4
0
7
5
E
R
1
1
3
1
0
K
V
B
A
T
U
1
0
C
1
0
1
1
u
4
C
1
+
5
C
- 1
9
N I
3
E
N
_
1
0
G
N
1
5
P
G
1
0
1
R
1
1
0
C
1
0
3
C
1
0
4
1
u
0
1 .
u
1
0
0
K
Figure 3.11-1] LCD charge pump circuit diagram
[
GM310f service manual
V
B
A
T
R
1
0
3
R
1
0
4
2
2 .
K
2
2 .
K
Q
1
0
2
S
S
S
S
C
C
T -
T -
W
W
H
H
1
1
0
0
4
4
H -
H -
L
L
B
K
T
C
4
0
7
5
E
1
A
A
T
3
1
6
9
F I
O
T -
1
7
C
2
+
C
1
0
2
1
u
8
C
- 2
6
O
U
T
C
P
1
1
D
1
1
2
D
2
1
3
S
E
T
D
3
1
4
D
4
1
D
D
5
2
N
D
D
6
V
A
1
0
2
V
A
1
C
1
0
5
2
2 .
u
- 41 -
3. BB Circuit Technical brief
R
W
F /
F
V
B
A
T
R
1
0
5
R
1
0
6
2
7 .
K
2
7 .
K
Q
1
0
3
R
1
1
1
1
K
L
2
K
T
C
4
0
7
5
R
1
1
4
1
0
K
M
M
M
M
M
M
L
G I
0
3
V
A
1
0
4
V
A
1
0
5
V
A
1
0
6
V
A
1
0
7
LGE Internal Use Only
S
S
S
S
C
C
T -
T -
W
W
H
H
1
1
0
0
4
4
H -
H -
L
L
E
L
E
D
L
E
D
1
L
E
D
2
L
E
D
3
L
E
D
4
L
E
D
5
H
T
Advertisement
Table of Contents
Troubleshooting
