![background image](http://html1.mh-extra.com/html/viewsonic/vx900-2/vx900-2_service-manual_1020039023.webp)
!
H-sync. Polarity
Negative
Positive
Positive
Positive
Positive
Negative Negative
V-sync Polarity
Negative
Positive
Positive
Positive
Positive
Negative Negative
H-resolution
(dots)
800 800 800 800 800 832
1024
V-resolution
(lines)
600 600 600 600 600 624
768
15 16 17 18 19 20
21
Signal name
Symbol
XGA
XGA
XGA
XGA
SXGA
720P
SXGA
H-frequency (kHz)
56.476
58.099
60.023
68.677
63.981
45.000
79.976
V-frequency (Hz)
70.069
72.082
75.029
84.997
60.02
60.00
75.025
Pixel
rate
(MHz)
75.000
78.084
78.750
94.500 108 74.250
135
H-sync Ths
136
136
96
96
112
40
144
H-back
porch Thb
144 160 176 208 248 270
248
Count
num
(H-total)
Thd
1328 1344 1312 1376 1688 1658
1688
H-
front
porch Thf
24 24 16 48 48 60
16
V-sync
Tvs
6 6 3 3 3 5
3
V-back
porch Tvb
29 29 28 36 38 20
38
Count num (V-total)
Tvd
806
806
800
808
1066
750
1066
V-front
porch Tvf
3 3 1 1 1 5
1
H-sync. Polarity
Negative
Negative
Positive
Positive
Positive
Negative
Positive
V-sync Polarity
Negative
Negative
Positive
Positive
Positive
Negative
Positive
H-resolution
(dots)
1024 1024 1024 1024 1280 1280
1280
V-resolution (lines)
768
768
768
768
1024
720
1024
!
29
ViewSonic Corporation
Confidential – Do Not Copy
VX900-2
Summary of Contents for VX900-2
Page 58: ...6 Mechanical Assembly 64 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 59: ...65 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 60: ...66 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 61: ...67 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 63: ...69 ViewSonic Corporation Confidential Do Not Copy VX900 2 7 Explode Diagram...
Page 64: ...Sechmatic Daigrams 6 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 65: ...72 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 66: ...73 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 67: ...74 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 68: ...75 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 69: ...76 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 70: ...PCB Layout 77 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 71: ...78 ViewSonic Corporation Confidential Do Not Copy VX900 2...
Page 72: ...79 ViewSonic Corporation Confidential Do Not Copy VX900 2...