NEC AccuSync LCD71VM User Manual

5-22
No. 1 2
Item Abbreviation VGA 640x480 60Hz MAC 640x480
Pixel frequency fc 25.175MHz 30.24MHz
Horizontal frequency fh 31.47kHz 35.00kHz
Line Time total Th 31.78us 800CLK 28.57us 864CLK
Horizontal active display Thd 25.42us 640CLK 21.16us 640CLK
Horizontal sync pulse Thp 3.81us 96CLK 2.12us 64CLK
Horizontal back porch Thb 1.91us 48CLK 3.17us 96CLK
Horizontal front porch Thf 0.64us 16CLK 2.12us 64CLK
Horizontal sync polarity NEG NEG
Vertical Frequency fv 59.992Hz 66.66Hz
Frame time total Tv 16.68ms 525H 15.00ms 525H
Vertical active display Tvd 15.25ms 480H 13.71ms 480H
Vertical sync pulse Tvp 0.06ms 2H 0.09ms 3H
Vertical back porch Tvb 1.02ms 33H 1.11ms 39H
Vertical front porch Tvf 0.35ms 10H 0.09ms 3H
Vertical sync polarity NEG NEG
No. 3 4
Item Abbreviation VGA 640x480 72Hz VESA 640x480 75Hz
Pixel frequency fc 31.500MHz 31.500MHz
Horizontal frequency fh 37.86kHz 37.50kHz
Line Time total Th 26.41us 832CLK 26.67us 840CLK
Horizontal active display Thd 20.32us 640CLK 20.32us 640CLK
Horizontal sync pulse Thp 1.27us 40CLK 2.03us 64CLK
Horizontal back porch Thb 4.06us 128CLK 3.81us 120CLK
Horizontal front porch Thf 0.76us 24CLK 0.51us 16CLK
Horizontal sync polarity NEG NEG
Vertical Frequency fv 72.81Hz 75.00Hz
Frame time total Tv 13.73ms 520H 13.33ms 500H
Vertical active display Tvd 12.68ms 480H 12.80ms 480H
Vertical sync pulse Tvp 0.08ms 3H 0.08ms 3H
Vertical back porch Tvb 0.74ms 28H 0.43ms 16H
Vertical front porch Tvf 0.24ms 9H 0.03ms 1H
Vertical sync polarity NEG NEG
No. 5 6
Item Abbreviation VGA 720x350 70Hz VGA 720x400 70Hz
Pixel frequency fc 28.322MHz 28.322MHz
Horizontal frequency fh 31.47kHz 31.47kHz
Line Time total Th 31.78us 900CLK 31.78us 900CLK
Horizontal active display Thd 25.42us 720CLK 25.42us 720CLK
Horizontal sync pulse Thp 3.81us 108CLK 3.81us 108CLK
Horizontal back porch Thb 1.91us 54CLK 1.91us 54CLK
Horizontal front porch Thf 0.64us 18CLK 0.63us 18CLK
Horizontal sync polarity POS NEG
Vertical Frequency fv 70.087Hz 70.087Hz
Frame time total Tv 14.27ms 449H 14.27ms 449H
Vertical active display Tvd 11.12ms 350H 12.71ms 400H
Vertical sync pulse Tvp 0.06ms 2H 0.06ms 2H
Vertical back porch Tvb 1.91ms 60H 1.11ms 35H
Vertical front porch Tvf 1.18ms 37H 0.38ms 12H
Vertical sync polarity NEG POS

NEC AccuSync LCD71VM Specifications

General

Brand	NEC
Model	AccuSync LCD71VM
Category	Monitor
Language	English