Service manual

56
ViewSonic Corporation Confidential - Do Not Copy VA503b-2_VA503m-2
Model
Title
Date Rev:
ViewSonic Corporation
INPUT
HSI
CLK_DDC
PC5V
VGA_CON
DAT_DDC
VSI
WP 4
DDCA_SCL 4
DDCA_SDA 4
GIN 4
GNDB 4
GNDG 4
RIN 4
GNDR 4
SOG 4
DET_VGA 4
HSYNC 4
VSYNC 4
BIN 4
VCC3.3
PC5V
VCC3.3
R132
4K7
ZD103
5V6/NC
C118 0.047/25V
R131
2K2
C123 0.047/25V
R121
75 1%
R125 100
R135 100
R134 100
D105
BAV70
3
2
1
D103
BAV99/NC
12
3
C126
33p/50V
R122
75 1%
R128 100
ZD104
5V6/NC
D101
BAV99/NC
12
3
C119 0.047/25V
R118 56
C121 0.047/25V/NC
FB109 60Ω
R123 100
C125
220p/50V
C127 0.1/50V
D102
BAV99/NC
12
3
R124 100
R120
75 1%
C124 0.047/25V
FB108 60Ω
FB107 60Ω
CN103
DZ11AA1-H5W6-4F
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17 16
R126 1K
R129 100
R130
2K2
ZD102
5V6/NC
U102
AT24C02BN
1
2
3
45
6
7
8
A0
A1
A2
GNDSDA
SCL
WP
VCC
R119 470/NC
ZD105
5V6/NC
R116 56
C122 0.047/25V
R117 56
D104
BAV99/NC
12
3
C120 0.047/25V
C153
0.01u/50V/NC
ZD101
5V6/NC
R138 100
R133
4K7
R127
4K7
VCC3.3 2,4