Samsung 540N User Manual (ENGLISH) - Page 163
Preset Timing Modes
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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 31.469 IBM, 640 x 480 31.469 IBM, 720 x 400 31.469 MAC, 640 x 480 35.000 MAC, 832 x 624 49.726 VESA, 640 x 480 37.500 VESA, 640 x 480 37.861 VESA, 800 x 600 35.156 VESA, 800 x 600 37.879 VESA, 800 x 600 46.875 VESA, 800 x 600 48.077 VESA, 1024 x 768 48.363 VESA, 1024 x 768 56.476 VESA, 1024 x 768 60.023 Vertical Frequency (Hz) 70.086 59.940 70.087 66.667 74.551 75.000 72.809 56.250 60.317 75.000 72.188 60.004 70.069 75.029 Pixel Clock (MHz) 25.175 25.175 28.322 30.240 57.284 31.500 31.500 36.000 40.000 49.500 50.000 65.000 75.000 78.750 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 the Horizontal Cycle and the inverse number of the Horizontal Cycle is called the 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 the Vertical Frequency or Refresh Rate. Unit: Hz