ViewSonic VG800-2 Service Manual page 20

Analog timing mode table
signal name
H-frequency(khz)
V-frequency(hz)
Pixel rate(mhz)
H-sync
H-back porch
H-total
H- front porch
V-sync
V-back porch
V-total
V-front porch
H-sync. Polarity
V-sync Polarity
H-resolution(dots)
V-resolution(lines)
signal name
H-frequency(khz)
V-frequency(hz)
Pixel rate(mhz)
H-sync
H-back porch
H-total
H- front porch
V-sync
V-back porch
V-total
V-front porch
H-sync. Polarity
ViewSonic Corporation
mode 1
symbol text
31.468
70.087
25.175
Ths 96
Thb 48
Thd 800
Tv 16
Tvs 2
Tvb 60
Tvd 449
Tvf 37
Positive
Negative
640
350
mode 6
symbo VGA
37.5
75
31.5
Ths 64
Thb 120
Thd 840
Tv 16
Tvs 3
Tvb 16
Tvd 500
Tvf 1
Negative
2 3
Dos-text VGA
31.468 31.468
70.077 59.941
28.327 25.175
108 96
54 48
900 800
18 16
2 2
35 33
449 525
12 10
Negative Negative
Positive Negative
720 640
400 480
7 8
SVGA
VESA-VGA
35.156
43.269
56.25
85.005
36
36.000
72
56
128
80
1024
832
24
56
2
3
22
25
625
509
1
1
Negative
Negative
17
Confidential – Do Not Copy
4 5
MAC 14" VGA
35 37.862
66.667 72.807
30.24 31.501
64 40
96 128
864 832
64 24
3 3
39 28
525 520
3 9
Negative Negative
Negative Negative
640 640
480 480
9 10
SVGA SVGA
37.879 48.077
60.317 72.188
40 50
128 120
88 64
1056 1040
40 56
4 6
23 23
628 666
1 37
Positive Positive
VG800b