Acer AC501 AC501 Monitor Service Guide - Page 6

C. Preset Timing: C-1. Mode : 1 Horizontal Active 640 Pixels Vertial Active 480 Pixels Refresh 606 Hz Sync Polarity -,- (HSync VSync) HORIZONTAL CHAR PIX / CHAR Pixel Frequency Pixel Period Active Border 1 X8= Front Porch 1 X8= Sync Width 12 X8= Back Porch 5 X8= Total Horizontal Frequency Bordered Video Blanking Interval Blank + 2*Border VERTICAL Active Border Front Porch Sync Width Back Porch Total Vertical Frequency Bordered Video Blanking Interval Blank + 2*Border CHAR PIX / CHAR 8 X1= 3 X1= 2 X1= 24 X1= PIX 640 8 8 96 40 800 656 144 160 LINES 480 8 3 2 24 525 496 29 45 ACTUAL 25.1750 39.7219 25.4220 0.3178 0.3178 3.8133 1.5889 31.7776 31.4688 26.0576 5.7200 6.3555 UNITS MHz ns s s s s s s kHz s s s ACTUAL 15.2532 0.2542 0.0953 0.0636 0.7627 16.6832 59.9405 15.7617 0.9215 1.4300 UNITS ms ms ms ms ms ms Hz ms ms ms 6