ViewSonic VG800-2 Service Manual page 21

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
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
ViewSonic Corporation
Negative
640
480
mode 11
symbol SVGA
46.875
75
49.5
Ths 80
Thb 160
Thd 1056
Tv 16
Tvs 3
Tvb 21
Tvd 625
Tvf 1
Positive
Positive
800
600
mode 16
symbo
XGA
l
58.099
72.082
78.084
Ths
136
Thb
160
Negative
Negative
800
640
600
480
12 13
MAC 16"
SVGA
49.725
53.674
74.5
85.061
57.283
56.250
64
64
224
152
1152
1048
32
32
3
3
39
27
667
631
1
1
Negative
Positive
Negative
Positive
832
800
624
600
17 18
XGA
XGA
60.023
68.677
75.029
84.997
78.75
94.500
96
96
176
208
18
Confidential – Do Not Copy
Positive Positive
800 800
600 600
14 15
XGA XGA
48.363 56.476
60.004 70.069
65 75
136 136
160 144
1344 1328
24 24
6 6
29 29
806 806
3 3
Negative Negative
Negative Negative
1024 1024
768 768
19 20
SXGA SXGA
63.981 79.976
60.02 75.025
108 135
112 144
248 248
VG800b