ViewSonic VG1921wm-2, Service Manual

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ViewSonic Corporation
Confidential - Do Not Copy
VG1921wm-2
52
Model
Title
Date Rev:
ViewSonic Corporation
Input
B
G
R
DETECT
SCL_DVI
DAT2-
DAT2+
DAT1-
DAT1+
DAT0-
DCLK+
DCLK-
SDA_DVI
DAT0-
DAT1+
DAT1-
DCLK+
DCLK-
DAT2-
DAT2+
R
G
DETECT
B
SCL_DVI
SDA_DVI
DAT0+
DAT0+
DVI5V
VCC3.3
VCC3.3
VCC3.3
PC5V_VGA
VCC3.3
VCC3.3
DVI5V
VCC3.3
C114 0.047/25V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
RX2-
RX2+
GND
RX4-
RX4+
SCL
SDA
VS
RX1-
RX1+
GND
RX3-
RX3+
5V
GND
HP
RX0-
RX0+
GND
RX5-
RX5+
GND
RXC+
RXC-
R152 100
C128
0.1/50V
R131 100
R114 100
R142 10
R130 100
C119
NC
TVS109
BAV99
1
3
2
R145 10
C125
33p/
50V
R124 1K
ZD101
5V6
R143 10
CN103
DZ11AA1-H5W6-4F
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17 16
TVS104
BAV99
1
3
2
ZD105
5V6
R121 470/NC
R133
75 1%
TVS101
BAV99
1
3
2
TVS106
BAV99
1
3
2
R113 100
R153
100
R146
4K7
ZD103
5V6
C113
0.047/25V
R127
100
R141 10
R117 100
C122
NC
R128 4K7
R149
4K7
TVS110
BAV99
1
3
2
R144 10
C115 0.047/25V
U103
CAT24WC02W
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R148
4K7
C129 0.
1/
50V
ZD106
5V6
Q104
PMBT3904/NC
1
3
2
R116
100
C112 0.047/25V
TVS102
BAV99
1
3
2
TVS107
BAV99
1
3
2
R140 10
C123
NC
R125 100
R136
2K2
R103 4K7/NC
R119 100
R151 100
R138 10
C117
0.047/25V
R126
100
R122
4K7
ZD104
5V6
FB111
60 Ω
U104
CAT24WC02W
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R150
4K7
R123
4K7
TVS111
BAV99
1
3
2
ZD107
5V6
R192 100
R134
75 1%
FB101
120 Ω
FB112 60 Ω
C116 0.047/25V
C124
NC
TVS108
BAV99
1
3
2
R120 100
ZD102
5V6
R139 10
R129
100
C121
NC
C120
NC
D103
BAV70
3
2
1
FB113 60 Ω
TVS103
BAV99
1
3
2
R137
2K2
C126
220p/
50V
TVS105
BAV99
1
3
2
ZD108
5V6
R147
4K7
R132
100
R193
100
R135
75 1%
C118
0.047/25V/NC
D102 BAV70
3
2
1
TVS112
BAV99
1
3
2
C127
0.
1/
50V
VCC3.3
G- 3
G+ 3
B- 3
R- 3
R+ 3
B+ 3
CLK+ 3
CLK- 3
WP 3
SCL_DVI_I
3
SDA_DVI_I
3
VSYNC 3
GIN 3
SOG 3
BIN 3
GNDB 3
DDCA_SDA_I 3
DDCA_SDA
HSYNC 3
RIN 3
GNDR 3
DET_VGA 3
DDCA_SCL_I 3
PC5V_VGA 3
GNDG 3
DDCA_SCL
DDCA_SCL
DDCA_SDA
DET_DVI 3
HP_CTRL