![background image](http://html1.mh-extra.com/html/viewsonic/vx800-3/vx800-3_service-manual_1020035023.webp)
V-sync
Tvs
2 4 6 3 3 6 6
V-back
porch
Tvb
22 23 23 21 27 29 29
Count num
(V-total)
Tvd
625 628 666 625 631 806 806
V-front
porch
Tvf
1 1 37
1 1 3 3
H-sync.
Polarity
Negative Positive Positive Positive Positive Negative Negative
V-sync
Polarity
Negative Positive Positive Positive Positive Negative Negative
H-resolution
(dots) 800 800 800 800 800 1024
1024
V-resolution
(lines) 600 600 600 600 600 768 768
15 16 17 18 19
Signal name
Symbo
l
XGA XGA XGA SXGA
HD-720P
H-frequency
(kHz)
58.099 60.023 68.677 63.981 45.000
V-frequency
(Hz)
72.082 75.029 84.997 60.02 60.00
Pixel
rate
(MHz)
78.084 78.750 94.500 108
74.250
H-sync
Ths
136
96 96 112
40
H-back
porch
Thb
160 176 208 248 270
Count
num
(H-total)
Thd
1344 1312 1376 1688 1658
H-
front
porch
Thf
24 16 48 48 60
V-sync
Tvs
6 3 3 3 5
V-back
porch
Tvb
29 28 36 38 20
Count
num
(V-total)
Tvd
806 800 808 1066
750
V-front
porch
Tvf
3 1 1 1 5
H-sync.
Polarity
Negative Positive Positive Positive Negative
V-sync
Polarity
Negative Positive Positive Positive Negative
H-resolution
(dots)
1024 1024 1024 1280 1280
V-resolution
(lines) 768 768 768 1024
720
29
!
ViewSonic Corporation
Confidential – Do Not Copy
VX
8
00-3
Summary of Contents for VX800-3
Page 56: ...6 Mechanical Assembly 62 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 57: ...63 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 58: ...64 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 59: ...BASE ASSEMBLY 65 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 60: ...66 ViewSonic Corporation Confidential Do Not Copy VX800 3 TAPE...
Page 62: ...7 Schematic Diagrams 57 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 63: ...58 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 64: ...59 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 65: ...60 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 66: ...61 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 67: ...62 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 68: ...63 ViewSonic Corporation Confidential Do Not Copy VX800 3...
Page 69: ...8 PCB Layout ViewSonic Corporation Confidential Do Not Copy VX800 3 64...
Page 70: ...ViewSonic Corporation Confidential Do Not Copy VX800 3 76...
Page 71: ...77 ViewSonic Corporation Confidential Do Not Copy VX800 3...