Acer AL1702 AL1702 Service Guide - Page 10

Table 2 video mode Mode Resolution 1 720x400 (70Hz) 2 640x480 (59.94Hz) 3 640x480 (66.67Hz) 4 640x480 (72Hz) 5 640x480 (75Hz) 6 800x600 (56.25Hz) 7 800x600 (60Hz) 8 800x600 (72Hz) 9 800x600 (75Hz) 10 832x624 (74.55Hz) 11 1024x768 (60Hz) 12 1024x768 (70Hz) 13 1024x768 (75Hz) 14 1152x864 (75Hz) 15 1280x960 (60Hz) 16 1280x1024 (60Hz) 17 1280x1024 (75Hz) H-Freq (KHz) 31.469 31.469 35 37.861 37.5 35.156 37.879 48.077 46.875 49.722 48.363 56.476 60.023 67.5 60 63.981 79.976 Band Width (MHz) 28.322 25.175 30.24 31.5 31.5 36 40 50 49.5 57.28 65 75 78.75 108 108 108 135 Polarity H V AL1702 Table 3 the Hsync, Vsync distinction Indication resolution 720 x 400 640 x 480 800 x 600 832 x 624 1024 x 768 1152 x 864 1280 x 960 1280 x 1024 1280 x 1024 Distinction Hsync 30.5KHz≦fH≦32.5KHz 30.5KHz≦fH≦32.5KHz 34KHz≦fH≦36KHz 36.9KHz≦fH≦38.9KHz 36.5KHz≦fH≦38.5KHz 34.2KHz≦fH≦36.2KHz 36.9KHz≦fH≦38.9KHz 47.1KHz≦fH≦49.1KHz 45.9KHz≦fH≦47.9KHz 48.7KHz≦fH≦50.7KHz 47.4KHz≦fH≦49.4KHz 55.5KHz≦fH≦57.5KHz 59KHz≦fH≦61KHz 66.5KHz≦fH≦68.5KHz 59KHz≦fH≦61KHz 62.9KHz≦fH≦64.9KHz 79KHz≦fH≦81KHz Distinction Vsync 69Hz≦fV≦71Hz 59Hz≦fV≦61Hz 65.7Hz≦fV≦67.7Hz 71.8Hz≦fV≦73.8Hz 74Hz≦fV≦76Hz 55.3Hz≦fV≦57.3Hz 59.3Hz≦fV≦61.3Hz 71.2Hz≦fV≦73.2Hz 74Hz≦fV≦76Hz 73.5Hz≦fV≦75.5Hz 59Hz≦fV≦61Hz 69Hz≦fV≦71Hz 74Hz≦fV≦76Hz 74Hz≦fV≦76Hz 59Hz≦fV≦61Hz 59Hz≦fV≦61Hz 74Hz≦fV≦76Hz The fixed mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Page 8