T T
E E
C C
T T
E E
C C
Initial set signals
Back porch b
Computer /
Signal
VGA-1 (85Hz)
VGA-2 (85Hz)
TEXT
VGA (60Hz)
Mac 13"mode
VGA (72Hz)
VGA (75Hz)
VGA (85Hz)
SVGA (56Hz)
SVGA (60Hz)
SVGA (72Hz)
SVGA (75Hz)
SVGA (85Hz)
Mac 16"mode
XGA (60Hz)
XGA (70Hz)
XGA (75Hz)
XGA (85Hz)
1152×864 (75Hz)
1280×960 (60Hz)
1280×1024 (60Hz)
1280×1024 (75Hz)
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H H
N N
I I
C C
A A
L L
H H
N N
I I
C C
A A
L L
Front porch d
Display interval c
Sync a
Horizontal signal timing (µs)
a
b
2.0
3.0
20.3
2.0
3.0
20.3
2.0
3.0
20.3
3.8
1.9
25.4
2.1
3.2
21.2
1.3
3.8
20.3
2.0
3.8
20.3
1.6
2.2
17.8
2.0
3.6
22.2
3.2
2.2
20.0
2.4
1.3
16.0
1.6
3.2
16.2
1.1
2.7
14.2
1.1
3.9
14.5
2.1
2.5
15.8
1.8
1.9
13.7
1.2
2.2
13.0
1.0
2.2
10.8
1.2
2.4
10.7
1.0
2.9
11.9
1.0
2.3
11.9
1.1
1.8
manuals search engine
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c c
o o
n n
t t
i i
n n
u u
e e
d d
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c c
o o
n n
t t
i i
n n
u u
e e
d d
Back porch b
Computer /
Signal
c
d
1.0
VGA-1 (85Hz)
1.0
VGA-2 (85Hz)
1.0
TEXT
0.6
VGA (60Hz)
2.1
Mac 13"mode
1.0
VGA (72Hz)
0.5
VGA (75Hz)
1.6
VGA (85Hz)
0.7
SVGA (56Hz)
1.0
SVGA (60Hz)
1.1
SVGA (72Hz)
0.3
SVGA (75Hz)
0.6
SVGA (85Hz)
0.6
Mac 16"mode
0.4
XGA (60Hz)
0.3
XGA (70Hz)
0.2
XGA (75Hz)
0.5
XGA (85Hz)
0.6
1152×864 (75Hz)
0.9
1280×960 (60Hz)
0.4
1280×1024 (60Hz)
9.5
0.1
1280×1024 (75Hz)
) )
) )
Front porch d
Display interval c
Sync a
Vertical signal timimg (lines)
a
b
3
60
3
41
3
42
2
33
3
39
3
28
3
16
3
25
2
22
4
23
6
23
3
21
3
27
3
39
6
29
6
29
3
28
3
36
3
32
3
36
3
38
3
38
TECHNICAL - 3
c
d
350
32
400
1
480
1
480
10
480
3
480
9
480
1
480
1
600
1
600
1
600
37
600
1
600
1
624
1
768
3
768
3
768
1
768
1
864
1
960
1
1024
1
1024
1