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44
ViewSonic Corporation
Confidential - Do Not Copy
VA502mb-1
SCL
6
4.7K
FB401
600 OHM
G+
3
GNDB
3
PA[0..9]
R401
NC
C407
0.1uF
4.7K
VDPLL
PA6
AD0
6
B+
3
PB3
R405
10K
Ω
1/16W
G-
3
R407
10K
Ω
1/16W
R401
PB0
VPO
C411
0.1uF
BIN
3
R403 390
Ω
1/16W
+
C414
10uF/16V
AD3
6
FB404
600 OHM
C421
0.1uF
RIN
3
+
C427
10uF/16V
U401
63
60
61
58
62
59
57
37
38
40
41
43
44
46
47
49
50
52
66
67
69
70
71
32
72
73
74
107
55
35
45
3
51
11
21 84
94 104
114
126
18 87
97
117
39
56
36
2
54
42
10
20 85
95
115
127
19
86 96
105
116
33
34
108
109
110
111
112
113
118
119
120
121
122
123
124
125
128
1
29
28
30
31
53
65
64
48
106
103
102
68
77
78
6
RIN0
GIN0
SOGIN0
BIN0
RIN0M
GIN0M
BIN0M
HSYNC0
VSYNC0
R+
R-
G+
G-
B+
B-
CK+
CK-
REXT
REFP
REFM
CSZ
SDA
SCL
HWRESETZ
INT
PWM0
PWM1
LVACKM
AVDD
AVDD_MPLL
AVDD_DVI
BYPASS
AVDD_DVI
VDDP VDDP VDDP
VDDP VDDP VDDP
VDDP
VDDC
VDDC VDDC
VDDC
AVSS_DVI
AVSS
AVSS_MPLL
AVSS_LPLL
AVSS_PLL
AVSS_DVI
GNDP
GNDP
GNDP GNDP
GNDP
GNDP
GNDC
GNDC GNDC
GNDP
GNDC
XIN
XOUT
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
NC/LVB3P
NC/LVB3M
NC/LVBCKP
NC/LVBCKM
NC/LVB2P
NC/LVB2M
NC/LVB1P
NC/LVB1M
NC/LVB0P
NC/LVB0M
DDC1_CLK/GPO8
DDC1_DAT/GPO7
ADO/NC
AD3/NC
AVDD_PLL
AVDD
AVSS
AVSS_DVI
LVACKP
LVA3M
LVA3P
AVSS
AD1/NC
AD2/NC
BUS TYPE/NC
Volume
6
FB406
600 OHM
VAD
C428
0.1uF
Direct Bus
VAD
VDD
PB2
R406
10K
Ω
1/16W
PB[0..9]
5
C418
0.1uF
R+
3
PA0
C415
0.1uF
+
C424
10uF/16V
INT
6
PB4
VCC2.5
2
PB7
B-
3
+
C422
10uF/16V
C420
0.1uF
R404
10K
Ω
1/16W
VAA3
FB403
600 OHM
CSZ
6
VAA1
C406
0.1uF
HWRESET
6
VCC5V
VPLL
+
C405
10uF/16V
PA8
PA7
GIN
3
PA1
C417
0.1uF
VAA4
2
VAA3
2
3-WIRE
VDPLL
C401
0.1uF
AdjBACKLITE
2
PB[0..9]
R402
100
Ω
1/16W
C410
0.1uF
C402 22pF
NC
C412
0.1uF
VDVI
+
C419
10uF/16V
AD1
6
TSU16AK
VPO
VDVI
C413
0.1uF
PB5
VSYNC
3
PA[0..9]
5
SOG
3
VAA1
2
VDVI
R402
HSYNC
3
C423
0.1uF
GNDG
3
VCC3.3
GNDR
3
FB402
600 OHM
VCC3.3
2
PA5
VCC2.5
FB405
600 OHM
C416
0.1uF
AD2
6
VAA4
PA3
NC
VCC3.3
VAA2
C426
0.1uF
VPLL
PA4
PB6
VAA2
2
PA9
R-
3
VDD
PB9
CLK+
3
CLK-
3
C408
0.1uF
C404
0.1uF
C425
0.1uF
SDA
6
PB1
PA2
PB8
X401
14.318MHz
C403 22pF
C409
0.1uF
Model
Title
Date
Rev:
ViewSonic Corporation
SCALER
Summary of Contents for VA502mb-1
Page 10: ...7 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 13: ...10 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 14: ...11 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 16: ...PIN Descriptions 13 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 18: ...Block Diagram PIN Function 15 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 38: ...5 7 Packing Procedure 35 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 42: ...39 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 6 Troubleshooting Flow Chart...
Page 43: ...7 Block Diagram 40 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 53: ...9 PCB Layout Diagrams MAIN BOARD 50 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 54: ...POWER BOARD 51 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 56: ...53 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 57: ...AUDIO BOARD 54 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 58: ...KEY BOARD 55 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 61: ...58 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 Packing for Shipping...