LG KT610, Service Manual

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3. TECHNICAL BRIEF
3.15.3 LCD backlight / Power of VGA Camera
U100(in Key PCB) is a charge pump. This module supply the 1.8V and 2.8V power to VGA camera.
This part is controlled by I2C of STN8810.
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
r e v i r d t h g i l k c a B _ D C L
1 T A B V
2 T A B V
3 E
P C T A B V
6 B
1 O D L T A B V
5 F
2 F
2 O D L T A B V
6 E
O I V
4 B
T U O V
2 B
D N G W
4 E
O 4 O D L
2 E
3 A
1 D E L
3 B
2 D E L
3 D E L
2 A
4 D E L
1 B
5 D E L
1 C
1 D
6 D E L
7 D E L
2 D
B T E S E R
3 D
4 D
L C S
5 D
A D S
A1
T1
A6
T2 T3
F6 F1
T4
3 F
L U G 5 8 0 6 D B
0 0 1 U
4 F
D N G A
C1N
D6 C6
C1P
C5
C2N
C2P
B5
C3N
A4
C3P
A5 C4
CPGND
D N G L F
2 C
O 1 O D L
5 E
O 2 O D L
1 E
O 3 O D L
u 1
4 0 1 C
V 7 . 2 _ O I _ D D V _ P A
R W P V + _ P A
9 0 1 C
u 1
V 8 . 2 _ M A C _ D D V _ P A
u 1
EVLC14S02050
VA
111
R W P V + _ P A
6 0 1 C
1u
C100
0 0 1 P T
8 0 1 C
u 1
7 0 1 C
u 1
C102
1u
C101
1u
5 0 1 C
3 0 1 C
u 7 . 4
u 0 1
EVLC14S02050
VA
11
3
VA
11
2
E
V
L
C14S02050
V 7 . 2 _ D C L _ D D V _ P A
V 8 . 1 _ M A C _ D D V _ P A
T S R n _ D E L W
0 A D S C 2 I
0 L C S C 2 I
1 D E L M
2 D E L M
3 D E L M
4 D E L M
5 D E L M
1 D E L S
2 D E L S
E D O N A _ D E L
Figure. Schematic of charge pump