54
Appendix
The computer output signal timing of different types of computer signals are shown below for reference.
For IBM and compatibles
For Macintosh Series
a
b
c
d
w
x
y
z
VIDEO SIGNAL
HORIZONTAL
SYNC SIGNAL
VIDEO SIGNAL
VERTICAL
SYNC SIGNAL
e
a
b c
d
w
x
y
z
VIDEO SIGNAL
C-SYNC(H)
C-SYNC(V)
VIDEO SIGNAL
V-SYNC
e = 2 dot
640
640
720
640
640
640
640
800
800
800
800
800
1,024
1,024
1,024
1,024
1,024
1,152
1,280
1,280
1,280
1,280
1,280
1,600
1,600
1,600
1,600
1,600
dot
32
32
36
8
16
16
56
24
40
56
16
32
8
24
24
16
48
64
96
64
48
16
64
64
64
64
64
64
dot
64
64
72
96
40
64
56
72
128
120
80
64
176
136
136
96
96
128
112
160
112
144
160
192
192
192
192
192
dot
96
96
108
40
120
120
80
128
88
64
160
152
56
160
144
176
208
256
312
224
248
248
224
304
304
304
304
304
dot
640
640
720
640
640
640
640
800
800
800
800
800
1,024
1,024
1,024
1,024
1,024
1,152
1,280
1,280
1,280
1,280
1,280
1,600
1,600
1,600
1,600
1,600
dot
832
832
936
800
832
840
832
1,024
1,056
1,040
1,056
1,048
1,264
1,344
1,328
1,312
1,376
1,600
1,800
1,728
1,688
1,688
1,728
2,160
2,160
2,160
2,160
2,160
dot
26.4
26.4
26.4
31.8
26.4
26.7
23.1
28.4
26.4
20.8
21.3
18.6
28.2
20.7
17.7
16.7
14.6
14.8
16.7
11.6
15.6
12.5
11.0
13.3
12.3
11.4
10.7
9.4
37.861
37.861
37.927
31.469
37.861
37.500
43.269
35.156
37.879
48.077
46.875
53.674
35.522
48.363
56.476
60.023
68.677
67.500
60.000
85.938
63.981
79.976
91.146
75.000
81.250
87.500
93.750
106.250
31.500
31.500
35.500
25.175
31.500
31.500
36.000
36.000
40.000
50.000
49.500
56.250
44.900
65.000
75.000
78.750
94.500
108.000
108.000
148.500
108.000
135.000
157.500
162.000
175.500
189.000
202.500
229.500
ms
32
1
1
2
1
1
1
1
1
37
1
1
0
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
H
3
3
3
2
3
3
3
2
4
6
3
3
4
6
6
3
3
3
3
3
3
3
3
3
3
3
3
3
H
60
41
42
25
20
16
25
22
23
23
21
27
20
29
29
28
36
32
36
47
38
38
44
46
46
46
46
46
H
350
400
400
480
480
480
480
600
600
600
600
600
768
768
768
768
768
864
960
960
1,024
1,024
1,024
1,200
1,200
1,200
1,200
1,200
H
445
445
446
525
520
500
509
625
628
666
625
631
817
806
806
800
808
900
1,000
1,011
1,066
1,066
1,072
1,250
1,250
1,250
1,250
1,250
H
11.8
11.8
11.8
16.7
13.7
13.3
11.8
17.8
16.6
13.9
13.3
11.8
23.0
16.7
14.3
13.3
11.8
13.3
16.7
11.8
16.7
13.3
11.8
16.7
15.4
14.3
13.3
11.8
Hz
85.080
85.080
85.039
59.940
72.809
75.000
85.008
56.250
60.317
72.188
75.000
85.061
43.479
60.004
70.069
75.029
84.997
75.000
60.000
85.002
60.020
75.025
85.024
60.000
65.000
70.000
75.000
85.000
kHz
MHz
31.7
31.7
28.2
39.7
31.7
31.7
27.8
27.8
25.0
20.0
20.2
17.8
22.3
15.4
13.3
12.7
10.6
9.3
9.3
6.7
9.3
7.4
6.3
6.2
5.7
5.3
4.9
4.4
350
400
400
480
480
480
480
600
600
600
600
600
768
768
768
768
768
864
960
960
1,024
1,024
1,024
1,200
1,200
1,200
1,200
1,200
line
MODE
VGA
SVGA
XGA
SXGA
UXGA
VESA
Standard
VESA
Standard
VESA
Guidelines
VESA
Standard
VESA
Standard
Industry
Standard
VESA
Guidelines
Industry
Standard
HSYNC
VSYNC
VIDEO
PERIOD
z
BACK
PORCH
y
FRONT
PORCH
w
1V
(w
x
y
z)
LEVEL
1/V
SYNC
x
VIDEO
PERIOD
d
BACK
PORCH
c
FRONT
PORCH
a
1H
(a
b
c
d)
LEVEL
1dot
1/H
1/dot
SYNC
b
0.7 Vp-p
75
Ω
load
LEVEL
R
•
G
•
B
ns
µ
s
TTL
TTL
TYPE
VIDEO
The following is a list of compatible VESA standards. Please note that this projector also accepts signals outside
of the VESA standards.
• Depending on the mode selected, the projector may clearly display images under 130 Hz.
Input Signals (Recommended Timing)