Samsung 912N User Manual (ENGLISH) - Page 54
Preset Timing Modes, Display Mode, Horizontal, Frequency, Vertical, Pixel Clock, Sync Polarity
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Preset Timing Modes If the signal transferred from the computer is the same as the following Preset Timing Modes, the screen will be adjusted automatically. However, if the signal differs, the screen may go blank while the power LED is on. Refer to the video card manual and adjust the screen as follows. Table 1. Preset Timing Modes Display Mode Horizontal Frequency (kHz) IBM, 640 x 350 IBM, 640 x 480 IBM, 720 x 400 31.469 31.469 31.469 MAC, 640 x 480 35.000 MAC, 832 x 624 MAC, 1152 x 870 VESA, 640 x 480 49.726 68.681 37.500 VESA, 640 x 480 37.861 VESA, 800 x 600 35.156 VESA, 800 x 600 VESA, 800 x 600 VESA, 800 x 600 37.879 46.875 48.077 VESA, 1024 x 768 48.363 VESA, 1024 x 768 VESA, 1024 x 768 VESA, 1152 x 864 56.476 60.023 67.500 VESA, 1280 x 1024 63.981 VESA, 1280 x 1024 79.976 Vertical Frequency (Hz) 70.086 59.940 70.087 66.667 74.551 75.062 75.000 72.809 56.250 60.317 75.000 72.188 60.004 70.069 75.029 75.000 60.020 75.025 Pixel Clock (MHz) 25.175 25.175 28.322 30.240 57.284 100.00 31.500 31.500 36.000 40.000 49.500 50.000 65.000 75.000 78.750 108.00 108.00 135.00 Sync Polarity (H/V) Horizontal Frequency The time to scan one line connecting the right edge to the left edge of the screen horizontally is called Horizontal Cycle and the inverse number of the Horizontal Cycle is called Horizontal Frequency. Unit: kHz Vertical Frequency Like a fluorescent lamp, the screen has to repeat the same image many times per second to display an image to the user. The frequency of this repetition is called Vertical Frequency or Refresh Rate. Unit: Hz