AOpen A70PF, Service Manual

Page: 5 / 35

A70PF(RX-777NS) 5 / 33
C.TIMING CHART
Preset
Modes
VGA
640
×
480
VGA
720
×
400
VESA
640
×
480
VESA
640
×
480
VESA
800
×
600
VESA
800
×
600
VESA
1024
×
768
SIEMENS
800
×
600
VESA
1280
×
1024
VESA
1024
×
768
Dot Rate
(MHz)
25.175 28.322
31.50
36.000 49.50 56.25 78.750 67.5 108.00 94.5
F.H
(KHz)
31.469 31.469 37.500 43.269 46.87 53.674 60.023 63.92 63.98 68.677
A- period
(uS)
31.778 31.778 26.667 23.111 21.333 18.631 16.660 15.644 15.630 14.561
B- Active
(uS)
25.422 25.422 20.317 17.778 16.162 14.222 13.003 11.852 11.852 10.836
C- Sync
(uS)
3.813 3.813 2.032 1.556 1.616 1.138 1.219 0.948 1.037 1.016
D-Back
Porch
1.907 1.907 3.810 2.222 3.232 2.702 2.235 2.370 2.296 2.201
E-Front
Porch
0.318 0.318 0.508 1.556 0.323 0.569 0.203 0.474 0.444 0.508
F . V
(Hz)
59.941 70.087 75.000 85.0 75.000 85.061 75.029 100.0 60.020 84.997
A- Period
(Ms)
16.683 14.268 13.333 11.764 13.333 11.756 13.328 9.997 16.661 11.765
B- Active
(mS)
15.253 12.711 12.800 11.093 12.800 11.179 12.795 9.387 16.005 11.183
C- Sync
(mS)
0.064 0.064 0.080 0.069 0.064 0.056 0.050 0.047 0.047 0.044
D-Back
Porch
1.049 1.112 0.427 0.578 0.448 0.503 0.466 0.548 0.594 0.524
E-Front
Porch
0.254 0.222 0.026 0.023 0.021 0.019 0.017 0.016 0.061 0.015
H/V
SYNC
－. － － . ＋ －. － ＋ . ＋ ＋ . ＋ ＋ . ＋ ＋ . ＋ ＋ . ＋ ＋ . ＋ ＋ . ＋
Interlaced
NON NON NON NON NON NON NON NON NON NON
A : Period
B : Active
C : Sync. Width
D : Back Porch
E : Front Porch
C