ViewSonic P90F Service Manual download pdf (Page 8)

TIMING CHART

Mode 1~ 13 : Preset Mode

Mode 14,15,16: Only for H-size limitation and Auto-size

Mode NO.

1 2 3 4 5 6 7 8

Unit

Pixel Clock

25.175 25.175 30.24 56.25 78.75 80.0 94.5 135

MHz

Resolution

640x400 640x480 640x480 800x600 1024x768 1024x768 1024x768 1280x1024

Horizontal Frequency

31.469 31.469 35 53.674 60.023 60.241 68.677 79.976

KHz

(A) Horizontal Period

31.779 31.778 28.571 18.631 16.660 16.6 14.561 12.504

usec

(B) Horizontal Pulse

Width

3.813 3.813 2.116 1.138 1.219 1.2 1.016 1.067

usec

1.907 1.907 3.175 2.702 2.235 2.2 2.201 1.837

usec

(D) Horizontal Active Area

25.422 25.422 21.164 14.222 13.003 12.8 10.836 9.481

usec

(E) Horizontal Front Porch

0.637 0.636 2.116 0.569 0.203 0.4 0.508 0.119

usec

(F) H. Sync. Polarity

- - - + + - + +

Vertical Frequency

70.087 59.94 66.667 85.061 75.029 74.927 84.997 75.025

(O) Vertical Period

14.269 16.683 15 11.756 13.328 13.346 11.765 13.329

msec

(P) Vertical Pulse Width

0.064 0.064 0.086 0.056 0.050 0.050 0.044 0.038

msec

(Q) Vertical Back Porch

1.112 1.049 1.114 0.503 0.466 0.498 0.524 0.475

msec

(R) Vertical Active Area

12.712 15.253 13.714 11.179 12.795 12.749 11.183 12.804

msec

(S) Vertical Front Porch

0.381 0.317 0.086 0.018 0.017 0.049 0.014 0.012

msec

(T) V. Sync. Polarity

+ - - + + - + +

(U) Interlaced

No No No No No No No No

Mode NO.

9 10 11 12 13 14 15 16

Unit

Pixel Clock

157.5 202.5 229.5 261 57.28 40 49.5 36

MHz

Resolution

1280 x

1024

1600x1200 1600x1200 1792x1344 832x624 800x600 800x600 640x480

Horizontal Frequency

91.146 93.75 106.25 106.27 49.725 37.8 46.875 43.269

KHz

(A) Horizontal Period

10.971 10.667 9.412 9.41 20.111 26.4 21.333 23.111

usec

(B) Horizontal PulseWidth

1.016 0.948 0.837 0.828 1.117 3.2 1.616 1.556

usec

1.422 1.501 1.325 1.349 3.910 2.2 3.232 2.222

usec

(D) Horizontal Active Area

8.127 7.901 6.972 6.866 14.524 20 16.162 17.778

usec

(E) Horizontal FrontPorch

0.406 0.316 0.279 0.368 0.560 1 0.323 1.556

usec

(F) H. Sync. Polarity

+ + + - - + + +

Vertical Frequency

85.024 75 85 74.997 74.5 60 75 85.008

(O) Vertical Period

11.761 13.333 11.765 13.334 13.414 16.579 13.333 11.764

msec

(P) Vertical Pulse Width

0.033 0.032 0.028 0.028 0.060 0.106 0.064 0.069

msec

(Q) Vertical Back Porch

0.483 0.491 0.433 0.649 0.784 0.607 0.448 0.578

msec

(R) Vertical Active Area

11.235 12.8 11.294 12.647 12.549 15.84 12.8 11.093

msec

(S) Vertical Front Porch

0.011 0.011 0.009 0.009 0.021 0.017 0.021 0.023

msec

(T) V. Sync. Polarity

+ + + + - + + +

(U) Interlaced

No No No No No No No No

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P90f-1

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ViewSonic P90F Service Manual Page 8

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