21
4. Initial set signals
The following signals are initially set. The settings may be different depending on the computer type. In
this case, adjust the settings referring to pages 15, 16.
Connection to the RGB signal terminal(continued)
Back porch(b)
Back porch(b)
DATA
HSYNC
DATA
VSYNC
Sync.(a)
Front porch(d)
Active(c)
Sync.(a)
Front porch(d)
Active(c)
Computer/signal
Horizontal Timing (µs)
a
b
c
d
VGA-1
3.8
1.9
25.4
0.6
PC-9800
3.0
3.8
30.4
3.0
VGA-2
3.8
1.9
25.4
0.6
VESA (85Hz)
1.6
2.2
17.8
1.6
VGA-3
3.8
1.9
25.4
0.6
Mac 13inch mode
2.1
3.2
21.2
2.1
VESA (72Hz)
1.3
4.1
20.3
0.8
VESA (75Hz)
2.0
3.8
20.3
0.5
SVGA (56Hz)
2.0
3.6
22.2
0.7
Computer/signal
Horizontal Timing (µs)
a
b
c
d
SVGA (60Hz)
3.2
2.2
20.0
1.0
SVGA (72Hz)
2.4
1.3
16.0
1.1
SVGA (75Hz)
1.6
3.2
16.2
0.3
SVGA (85Hz)
1.1
2.7
14.2
0.6
Mac 16inch mode
1.1
3.9
14.5
0.6
XGA VESA (60Hz)
2.1
2.5
15.8
0.4
XGA VESA (70Hz)
1.8
1.9
13.7
0.3
XGA VESA (75Hz)
1.2
2.2
13.0
0.2
Computer/signal
Vertical Timing (lines)
a
b
c
d
VGA-1
2
59
350
38
PC-9800
8
25
400
7
VGA-2
2
34
400
13
VESA (85Hz)
3
25
480
1
VGA-3
2
33
480
10
Mac 13inch mode
3
39
480
3
VESA (72Hz)
3
28
480
9
VESA (75Hz)
3
16
480
1
SVGA (56Hz)
2
22
600
1
Computer/signal
Vertical Timing (lines)
a
b
c
d
SVGA (60Hz)
4
23
600
1
SVGA (72Hz)
6
23
600
37
SVGA (75Hz)
3
21
600
1
SVGA (85Hz)
3
27
600
1
Mac 16inch mode
3
39
624
1
XGA VESA (60Hz)
6
29
768
3
XGA VESA (70Hz)
6
29
768
3
XGA VESA (75Hz)
3
28
768
1
