ViewSonic VP2030b-1 Service Manual page 72

1 2
VGA_5V +5V
3
U2 24AA02
R23
1 8
A0 VCC
100R
2 7
A1 WP
VGASCL
3 6 15
A2 SCL
4 5
GND SDA
VGA_VS
14
R30 VGA_HS
13
VGA_SCL 100R
VGASDA
VGA_SDA
12
11
+5V +5V
+5V +5V
D23 D24 D9 D10
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
VGA_HS VGA_VS VGASCL
3 3 3 3
DVI_SCL DSCL
R184 0R(NC)
DVI_SDA R185 0R(NC) DSDA
CN2
25
RX2-
1
RX2- 5
RX2-
RX2+
2
RX2+ 5
RX2+
3
GND
4
RX4-
5
RX4+
DVI_SCL
DVISCL R44 100R
6
SCL
DVI_SDA
DVISDA R45 100R
7
SDA
DVI_VS
8
VS
R210 10K
RX1-
9
RX1- 5
RX1-
RX1+
10
RX1+ RX1+ 5
11
GND
DVI_5V
12
RX3-
13
RX3+
R51 10K
14
5V DVI_CAB 5
15
GND
R54 10K
16
HP
RX0-
R56
17
RX0- RX0- 5
RX0+
18
RX0+ RX0+ 5
19
GND
20
RX5-
100K
21
RX5+
22
GND
RXC+
23
RXC+ RXC+ 5
RXC-
24
RXC- 5
RXC-
DVI_RED+
C1
RED
DVI_GREEN+
C2 +5V
GRN
DVI_BLUE+
C3
BLU
DVI_HS
C4
HS
C5
GND
26
DVI-I
+5V +5V
+5V +5V
+5V
D11 D12 D13 D14
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
DVISDA DVISCL DVI_HS DVI_VS
3 3 3 3
Viewsonic Corporation
R25
100K(NC)
CN1
5
R24 0R
10
VGA_CAB 5
4
9
VGA_5V
VGA_BLUE+
3
8
VGA_GREEN+
2
7
VGA_RED+
1
6
DB15 HD
+5V
+5V
D1 D2
DAN217K/NC DAN217K/NC
VGASDA VGA_BLUE+
3
1 2
DVI_5V +5V
3
DDCD_5V
U4
1
A0
2
A1
3
A2
4
GND
U5
DSCL 24AA02
12
X0
ASCL
14 13
X X1
15
Y
DSDA
2
Y0
ASDA
4 1
Z Y1
5
Z0
3
Z1
6
INH
R55
7 11
VEE A
0R
10
B
U6
8 9
GND C
1
A0
74HCT4053
2
A1
R57
3
A2
100K
4
GND
24AA02
+5V
+5V
EDID_SEL 5
D6 D7 D8
DAN217K/NC DAN217K/NC DAN217K/NC
DVI_GREEN+ DVI_BLUE+ DVI_RED+
3 3 3
+5V +5V +5V +5V
+5V
D15 D16 D17 D18 D19 D20
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
RXC+ RXC- RX2+ RX2- RX1+
3 3 3 3 3 3
69 Confidential - Do Not Copy
C189 22u
DVI_BLUE+ C9 0.1u
DVI_GREEN+ C11 0.1u
C190 22u
DVI_RED+ C14 0.1u
VGA_RED+
C192 22u
VGA_GREEN+
VGA_BLUE+
+5V
D3
DAN217K/NC
VGA_GREEN+ VGA_RED+
3 3
DDCD_5V
VGA_SCL R35
VGA_SDA R36
ASCL
ASDA
8
VCC
7
WP
6
SCL
5
SDA
DDCD_5V
VGA_SCL
VGA_SDA
DSCL
R52 22R
DSCL_1 5
DSDA R53 22R
DSDA_1 5
8
VCC
7
WP
6
SCL
5
SDA
VGA_HS R211 0R
DVI_HS
R212 0R
VGA_VS R213 0R
DVI_VS R214 0R
A/D_SEL
+5V
+5V
D21 D22
DAN217K/NC DAN217K/NC
RX1- RX0+ RX0-
3 3
VP2030b-1
U1 AD8186
1
IN0A
2
DGND
3
IN1A SEL A/B
4
VREF
5
IN2A
C191 22u
6
VCC
7
VEE
C13 0.1u
8
IN2B
9
VEE
C18 0.1u
10
IN1B
11
VEE
C193 22u
12
IN0B
C20 0.1u
C194 22u
L21 L22 L24
+5V
U3
RXD
12
RXD 5
X0
22R DDC_SCL
14 13
X X1 DDC_SCL 5
22R
15
Y
2 TXD
TXD 5
Y0
DDC_SDA
4 1
DDC_SDA 5
Z Y1
5
Z0
3
Z1
Swap Pin 2 & Pin12
6
INH
7 11
VEE A
10
B
R43 0R
8 9
DEBUG 5
GND C
74HCT4053 R47
DDC_SCL
R37 0R(NC)
100K
R38 0R(NC) DDC_SDA
+5V HS
R58 20R
C26
0.1u R60 C213
33P
U22 510R
VGA_HS_C
12
X0
DVI_HS_C
13 14
X1 X
15
Y
VGA_VS_C
2
Y0
DVI_VS_C
1 4
Y1 Z
5
Z0
3
Z1
6
INH
VS
R61 20R
11 7
A VEE
10
B
R65
9 8
C GND
C212
74HCT4053
33P
R59 R187 510R
0R 100K
VGA_HS HS
R41 0R(NC)
DVI_HS R46 0R(NC)
VGA_VS R42 0R(NC) VS
DVI_VS
R48 0R(NC)
BK2125HS102/8
L19
+5V
L27
R14
24
VCC
0R
23
OE
A/D_SEL
22
A/D_SEL 5
21
VCC
20
OUT 0 BLUE 5
19
VEE
18
GREEN 5
OUT 1
17
SOG 5
VCC
16
OUT 2 RED 5
15
VEE
14
DVCC
13
VCC
L31 L33 L34
DVI_BLUE+ R1 0R(NC) BLUE
VGA_BLUE+
R10 0R(NC)
DVI_GREEN+ R2 0R(NC) GREEN
VGA_GREEN+
R11 0R(NC)
VGA_RED+ RED
R13 0R(NC)
DVI_RED+
R3 0R(NC)
+3.3V
1 2 3 4
AHS 5
U7A U7B
74LCX14MX/NC 74LCX14MX/NC
+3.3V
R182 0R
+3.3V
5 6 9 8
AVS 5
U7C U7D
74LCX14MX/NC 74LCX14MX/NC
R183 0R
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