Samsung 997MB User Manual (ENGLISH) - Page 68

Preset Timing Modes, Display Mode, Horizontal, Frequency, Vertical, Pixel Clock, Sync Polarity - refresh rate

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Ge nera l Power Sav er 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 (k Hz) Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (H/V ) VESA, 640 x 480 37.500 75.000 31.500 -/- VESA, 1024 x 768 68.677 84.997 94.500 +/+ VESA, 1280 x 1024 91.146 85.024 157.50 +/+ 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 re petition is called Vertical Frequency or Refresh Rate. Unit: Hz

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Ge nera l
PowerSaver
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
(k Hz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(H/V )
VESA, 640 x 480
37.500
75.000
31.500
-/-
VESA, 1024 x 768
68.677
84.997
94.500
+/+
VESA, 1280 x 1024
91.146
85.024
157.50
+/+
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