Service manual

H-total Thd
1344
1312
1376 1688 1688
H- front porch Tv
24
16
48 48 16
V-sync Tvs
6
3
333
V-back porch Tvb
29
28
36 38 38
V-total Tvd
806
800
808 1066 1066
V-front porch Tvf
3
1
111
H-sync. Polarity
Negative
Positive
Positive Positive Positive
V-sync Polarity
Negative
Positive
Positive Positive Positive
H-resolution(dots)
1024
1024
1024 1280 1280
V-resolution(lines)
768
768
768 1024 1024
mode 21
signal name symbol
720P
H-frequency(khz)
45.000
V-frequency(hz)
60.00
Pixel rate(mhz)
74.250
H-sync Ths
40
H-back porch Thb
270
H-total Thd
1658
H- front porch Tv
60
V-sync Tvs
5
V-back porch Tvb
20
V-total Tvd
750
V-front porch Tvf
5
H-sync. Polarity
Negative
V-sync Polarity
Negative
H-resolution(dots)
1280
V-resolution(lines)
720
ViewSonic Corporation
Confidential – Do Not Copy
VG800b
19