Samsung 955b manual Preset Timing Modes, Horizontal Frequency, Vertical Frequency

Models: 955b

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General

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

PowerSaver

Preset Timing Modes

 

Horizontal

Vertical

Display Mode

Frequency

Frequency

 

(kHz)

(Hz)

IBM, 640 x 480

31.469

59.940

 

 

 

IBM, 720 x 400

31.469

70.087

 

 

 

VESA, 640 x 480

37.500

75.000

 

 

 

VESA, 640 x 480

43.269

85.008

 

 

 

VESA, 800 x 600

53.674

85.061

 

 

 

VESA, 1024 x 768

60.023

75.029

 

 

 

VESA, 1024 x 768

68.677

84.997

 

 

 

VESA, 1280 x 1024

79.976

75.025

 

 

 

Pixel Clock

Sync Polarity

(MHz)

(H/V)

 

 

25.175

-/-

 

 

28.322

-/+

 

 

31.500

-/-

 

 

36.000

-/-

 

 

56.250

+/+

 

 

78.750

+/+

 

 

94.500

+/+

 

 

135.00+/+

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

Page 44
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Samsung 955b manual Preset Timing Modes, Horizontal Frequency, Vertical Frequency