Xerox XL-795D Service Manual - Page 5

C.timing Chart

Get Xerox XL-795D PDF manuals and user guides View all Xerox XL-795D manuals
Add to My Manuals
Save this manual to your list of manuals

Page 5 highlights

C.TIMING CHART Back porch Sync-width Video Active display Sync. Total Front porch Modes Preset VGA 720X400 Pixel clock (MHz) 28.325 H-Frequency (KHz) 31.472 VGA 640X480 25.175 31.469 VESA 640X480 31.500 37.861 VESA 640X480 31.500 37.500 VESA 800X600 36.000 35.156 VESA 800X600 40.000 37.879 VESA 800X600 50.000 48.077 H-Total (µ s) 31.774 31.778 26.413 26.667 28.444 26.400 20.800 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) 25.419 6.355 0.635 3.813 1.906 70.1 14.267 12.710 1.557 0.413 25.422 6.356 0.636 3.813 1.907 59.94 16.683 15.253 1.430 0.318 20.317 6.095 0.762 1.270 4.063 72.81 13.735 12.678 1.057 0.238 20.317 6.349 0.508 2.032 3.810 75.0 13.333 12.800 0.533 0.027 22.222 6.222 0.667 2.000 3.556 56.25 17.778 17.067 0.711 0.028 20.000 6.400 1.000 3.200 2.200 60.3 16.579 15.840 0.739 0.026 16.000 4.800 1.120 2.400 1.280 72.2 13.853 12.480 1.373 0.770 V-Sync-width (ms) 0.064 0.064 0.079 0.080 0.057 0.106 0.125 V-Back Porch (ms) 1.080 1.049 0.740 0.427 0.626 0.607 0.478 H/V Sync. Polarity Interlace NONE NONE NONE NONE NONE NONE NONE

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
5
C.TIMING CHART
Video
Back porch
Active display
Front porch
Sync.
Sync-width
Total
Preset
Modes
VGA
720X400
VGA
640X480
VESA
640X480
VESA
640X480
VESA
800X600
VESA
800X600
VESA
800X600
Pixel clock
(MHz)
28.325
25.175
31.500
31.500
36.000
40.000
50.000
H-Frequency
(KHz)
31.472
31.469
37.861
37.500
35.156
37.879
48.077
H-Total
(
μ
s)
31.774
31.778
26.413
26.667
28.444
26.400
20.800
H-Active Display
(μs)
25.419
25.422
20.317
20.317
22.222
20.000
16.000
H-Blanking
(μs)
6.355
6.356
6.095
6.349
6.222
6.400
4.800
Front Porch
(μs)
0.635
0.636
0.762
0.508
0.667
1.000
1.120
H-Sync-width
(μs)
3.813
3.813
1.270
2.032
2.000
3.200
2.400
H-Back Porch
(μs)
1.906
1.907
4.063
3.810
3.556
2.200
1.280
V-Frequency
(Hz)
70.1
59.94
72.81
75.0
56.25
60.3
72.2
V-Total
(ms)
14.267
16.683
13.735
13.333
17.778
16.579
13.853
V-Active Display
(ms)
12.710
15.253
12.678
12.800
17.067
15.840
12.480
V-Blanking
(ms)
1.557
1.430
1.057
0.533
0.711
0.739
1.373
V-Front Porch
(ms)
0.413
0.318
0.238
0.027
0.028
0.026
0.770
V-Sync-width
(ms)
0.064
0.064
0.079
0.080
0.057
0.106
0.125
V-Back Porch
(ms)
1.080
1.049
0.740
0.427
0.626
0.607
0.478
H/V Sync. Polarity
Interlace
NONE
NONE
NONE
NONE
NONE
NONE
NONE