Service manual
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 Confidential
-
Do Not Copy VG910s/b