ViewSonic VA902B Service Manual - Page 15

ViewSonic VA902B - 19" LCD Monitor Manual

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Pin Symbol 74 PWM1 75 NC 76 NC 77 AD1 78 AD2 79 NC 80 NC 81 NC 82 NC 83 NC 84 VDDP 85 GND 86 GND 87 VDDC 88 NC 89 NC 90 NC 91 NC 92 NC 93 NC 94 VDDP 95 GND 96 GND 97 VDDC 98 NC 99 NC 100 NC 101 NC 102 LVA3P 103 LVA3M 104 VDDP 105 GND 106 LVACKP 107 LVACKM 108 LVA2P 109 LVA2M 110 LVA1P 111 LVA1M 112 LVA0P 113 LVA0M 114 VDDP 115 GND 116 GND 117 VDDC 118 LVB3P ViewSonic Corporation I/O Description O PWM1; 4mA driving strength Not connected Not connected I/O DDR direct bus AD1; 8mA driving strength I/O DDR direct bus AD2; 8mA driving strength Not connected Not connected Not connected Not connected Not connected O Digital Output Power Ground Ground I Digital Core Power Not connected Not connected Not connected Not connected Not connected Not connected O Digital Output Power Ground Ground I Digital Core Power Not connected Not connected Not connected Not connected O A-Link Positive LVDS Differential Data Output O A-Link Negative LVDS Differential Data Output O Digital Output Power Ground O A-Link Positive LVDS Differential Clock Output O A-Link Negative LVDS Differential Clock Output O A-Link Positive LVDS Differential Data Output O A-Link Negative LVDS Differential Data Output O A-Link Positive LVDS Differential Data Output O A-Link Negative LVDS Differential Data Output O A-Link Positive LVDS Differential Data Output O A-Link Negative LVDS Differential Data Output O Digital Output Power Ground Ground Digital Core Power O B-Link Positive LVDS Differential Data Output Confidential - Do Not Copy VA902/b 12

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Pin
Symbol
I/O
Description
74
PWM1
O
PWM1; 4mA driving strength
75
NC
Not connected
76
NC
Not connected
77
AD1
I/O
DDR direct bus AD1; 8mA driving strength
78
AD2
I/O
DDR direct bus AD2; 8mA driving strength
79
NC
Not connected
80
NC
Not connected
81
NC
Not connected
82
NC
Not connected
83
NC
Not connected
84
VDDP
O
Digital Output Power
85
GND
Ground
86
GND
Ground
87
VDDC
I
Digital Core Power
88
NC
Not connected
89
NC
Not connected
90
NC
Not connected
91
NC
Not connected
92
NC
Not connected
93
NC
Not connected
94
VDDP
O
Digital Output Power
95
GND
Ground
96
GND
Ground
97
VDDC
I
Digital Core Power
98
NC
Not connected
99
NC
Not connected
100
NC
Not connected
101
NC
Not connected
102
LVA3P
O
A-Link Positive LVDS Differential Data Output
103
LVA3M
O
A-Link Negative LVDS Differential Data Output
104
VDDP
O
Digital Output Power
105
GND
Ground
106
LVACKP
O
A-Link Positive LVDS Differential Clock Output
107
LVACKM
O
A-Link Negative LVDS Differential Clock Output
108
LVA2P
O
A-Link Positive LVDS Differential Data Output
109
LVA2M
O
A-Link Negative LVDS Differential Data Output
110
LVA1P
O
A-Link Positive LVDS Differential Data Output
111
LVA1M
O
A-Link Negative LVDS Differential Data Output
112
LVA0P
O
A-Link Positive LVDS Differential Data Output
113
LVA0M
O
A-Link Negative LVDS Differential Data Output
114
VDDP
O
Digital Output Power
115
GND
Ground
116
GND
Ground
117
VDDC
Digital Core Power
118
LVB3P
O
B-Link Positive LVDS Differential Data Output
12
ViewSonic Corporation
Co
nfidential - Do Not Copy
VA902/b