Vga Board Connector - Acer Extensa 900 Series Maintenance Manual

ENAVEE
2
Y[0..7]
UV[0..7]
AD[0..31]
C/BE#[0..3]
DEVSEL# $VGACLK
1
R22
1
47R3 47R3
2
2
C40
SC39P
1
R10
TRDY#
2
47R3
47R3
C17
SC39P
IRDY#
1
R23
2
47R3
C41
SC39P
Figure B-4 MPB VGA Board Logic Diagrams (Sheet 1 of 5)
B-16 MPB Schematic Diagrams
RGBGND
CRT_VS
2 CRT_VS
CRT_HS
2 CRT_HS
DDC_DATA
DDC_CLK
2
2
+5V
ENAVEE
C52 DISPLAY
4
SCD1U
DISPLAY
2
ZV_VREF
ZV_VREF
Y[0..7]
UV[0..7]
C/BE#[0..3]
2
AD[0..31]
2
2
2
SERR#
2
STOP#
TRDY#
C/BE#1
FRAME#
2
TRDY#
STOP#
2 FRAME#
2
C/BE#3
R11
C25
SC39P +3.3V
1
R9
2
C15
SC39P

VGA BOARD CONNECTOR

RGBGND
CN2
1
71
2 72
3 CRT_R
73
4 74
5
75
6 76
7 77 CRT_B
8 78
9 10 79
80
C10
11
81
12
SCD1U 82
13
83
14
15 84
85
16
86
17
18 87
AD0
88
AD1
19
AD2
20 89
AD3
90
21
91
AD4 22
23 92
AD5
93
AD6
24
25 27 94
AD7
95
26 97
AD8
96
AD9
28
AD10
AD11 29 98 C/BE#0
100
30 99 UV0
101
UV1
31
AD12
102 UV2
32
AD13
103
AD14
33
104
UV3
AD15
34
105 UV4
35
106 UV5
SERR# 36 107
UV6
37
108
38
109
UV7
39 110 PAR
40 111
41
AD16
112 PERR#
AD17
42 113
DEVSEL#
AD18
43
114
44 115
IRDY#
AD19
45 116 C/BE#2
AD20
46
AD21 117
47 118
AD22
48 119
49
120
50 121
AD23
51 122
AD24
AD25
52
123
53 124
AD26
54 125
AD27
55
126
AD28
56 127 3.3V/5V#
AD29
57 128 PCIRST#
58 129
AD30
59 130
AD31
131
60
61 @32K2
132
62 133
134
63
$VGA_14M
C44
64 135
HRS-CONN140
136
65
137
66
67 138
139
68
69 140
70
SCD1U
CRT_R
2
CRT_G
CRT_G
2
CRT_B
2
+5V
C29
SCD1U
LCDVEE
ZV_PCLK C53
ZV_PCLK
4
ZV_HREF ZV_HREF
SCD1U
2
Y0
Y1
2
Y2
Y3
Y4
Y5
Y6
Y7
PAR
PERR# 2
DEVSEL#
IRDY#
2
2
2
3.3V/5V#
PCIRST#
STNDBY#
STNDBY#
2
$VGA_14M
$VGACLK
5
$VGACLK
2
2
+3.3V
@32K2
C43
SCD1U
2
2
FRAME#
CLOSE VGA C