Timing Chart - Acer AL532 Service Manual

Back porch
Sync-width
Preset
Modes
720X400
Pixel clock
28.325
(MHz)
H-Frequency
31.472
(KHz)
31.774
H-Total µ
( s)
25.419
H-Active Display (µs)
H-Blanking (µs)
Front Porch (µs)
H-Sync-width (µs)
H-Back Porch (µs)
V-Frequency
(Hz)
V-Total
14.267
(ms)
12.710
V-Active Display (ms)
V-Blanking (ms)
V-Front Porch (ms)
V-Sync-width (ms)
V-Back Porch (ms)
H/V Sync. Polarity
Interlace
NONE
C.TIMING CHART
Video
Active display
Sync.
Total
VGA VGA
640X480
25.175
31.469
31.778
25.422
6.355 6.356
0.635 0.636
3.813 3.813
1.906 1.907
70.1 59.94
16.683
15.253
1.557 1.430
0.413 0.318
0.064 0.064
1.080 1.049
－ ＋ － －
NONE
Front porch
VESA VESA
640X480 640X480
31.500 31.500
37.861 37.500
26.413 26.667
20.317 20.317
6.095 6.349
0.762 0.508
1.270 2.032
4.063 3.810
72.81 75.0
13.735 13.333
12.678 12.800
1.057 0.533
0.238 0.027
0.079 0.080
0.740 0.427
－ － － －
NONE NONE
VESA VESA
800X600 800X600
36.000 40.000
35.156 37.879
28.444 26.400
22.222 20.000
6.222 6.400
0.667 1.000
2.000 3.200
3.556 2.200
56.25 60.3
17.778 16.579
17.067 15.840
0.711 0.739
0.028 0.026
0.057 0.106
0.626 0.607
＋ ＋ ＋ ＋
NONE NONE