Acer AL732 Service Manual page 5

Back porch
Sync-width
Preset
Modes
720X400
Pixel clock
(MHz)
31.472
H-Frequency
(KHz)
H-Total µ
( s)
H-Active Display
(µs)
H-Blanking
(µs)
Front Porch
(µs)
H-Sync-width (µs)
H-Back Porch
(µs)
V-Frequency
(Hz)
V-Total
(ms)
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
28.325 25.175
31.469
31.774 31.778
25.419 25.422
6.355 6.356
0.635 0.636
3.813 3.813
1.906 1.907
70.1 59.94
14.267 16.683
12.710 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
VESA
800X600
50.000
48.077
20.800
16.000
4.800
1.120
2.400
1.280
72.2
13.853
12.480
1.373
0.770
0.125
0.478
++
NONE