ViewSonic VG910S Service Manual - Page 13

Ex:640x400/70Hz;640x350/70Hz ;720x400/70Hz ;640x480/85Hz;800x600/85Hz

Page 13 highlights

Signal name Symbol H-frequency (kHz) V-frequency (Hz) Pixel rate (MHz) H-sync Ths H-back porch Thb Count num Thd (H-total) H- front porch Thf V-sync Tvs V-back porch Tvb Count num Tvd (V-total) V-front porch Tvf H-sync. Polarity V-sync Polarity H-resolution (dots) V-resolution (lines) 15 XGA 56.476 70.069 75.000 136 144 1328 16 XGA 58.099 72.082 78.084 136 160 1344 24 24 6 6 29 29 806 806 3 3 Negative Negative Negative Negative 1024 1024 768 768 17 XGA 60.023 75.029 78.750 96 176 1312 16 3 28 800 1 Positive Positive 1024 768 18 XGA 68.677 84.997 94.500 96 208 1376 48 3 36 808 1 Positive Positive 1024 768 19 SXGA 63.981 60.02 108 112 248 1688 48 3 38 1066 1 Positive Positive 1280 1024 20 720P 45.000 60.00 74.250 40 270 1658 60 5 20 750 5 Negative Negative 1280 720 21 SXGA 79.976 75.025 135 144 248 1688 16 3 38 1066 1 Positive Positive 1280 1024 Notes: Because this model no support FRC and in order to meet the panel spec of vertical frequency, some timing can not full screen in vertical size. Ex:640x400/70Hz;640x350/70Hz ;720x400/70Hz ;640x480/85Hz;800x600/85Hz; 1024x768/85Hz. ViewSonic Corporation Confidential - Do Not Copy VG910s/b 10

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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
Notes: Because this model no support FRC and in order to meet the panel spec of vertical frequency,
some timing can not full screen in vertical size.
Ex:640x400/70Hz;640x350/70Hz ;720x400/70Hz ;640x480/85Hz;800x600/85Hz;
1024x768/85Hz.
15
16
17
18
19
20
21
Signal name
Symbol
XGA
XGA
XGA
XGA
SXGA
720P
SXGA
10
ViewSonic Corporation
Co
nfidential
- Do Not Copy
VG910s/b