Service manual

L9CMonitor
L9C service manual Page13 of 48
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3.5.5 Preset Timings
The product has 32 memory modes in total. 15 modes are preset and 17 modes
are user definable.
1 2 3 4 5
Format 640x350@70Hz 720x400@70Hz 640X480@6
0Hz
640x480@7
2Hz
640x480@7
5Hz
Pixel Clock(MHz) 25.176 28.320 25.175 31.500 31.500
Horizontal
Sync Polarity P N N N N
Frequency(KHz) 31.470 31.467 31.469 37.861 37.500
Total Time(pixels) 800 900 800 832 840
Display Time(pixels) 640 720 640 640 640
Sync Width(pixels) 96 108 96 40 64
Back Porch(pixels) 48 54 40 120 120
Front Porch(pixels) 16 18 8 16 16
Blank time(pixels) 160 180 144 176 200
Vertical
Sync Polarity N P N N N
Frequency(Hz) 70.089 70.082 59.940 72.809 75.00
Total Time(lines) 449 449 525 520 500
Display Time(lines) 350 400 480 480 480
Sync Width(lines) 2 2 2 3 3
Back Porch(lines) 60 35 25 20 16
Front Porch(lines) 37 12 2 1 1
Blank time(lines) 99 49 29 24 20