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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 adjusts the screen as
follows.
Display Mode
IBM, 640 x 350
IBM, 640 x 480
IBM, 720 x 400
MAC, 640 x 480
MAC, 832 x 624
VESA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1360 x 768
Specifications
Horizontal
Vertical Fre-
Frequency
quency (Hz)
(kHz)
31.469
70.086
31.469
59.940
31.469
70.087
35.000
66.667
49.726
74.551
37.861
72.809
37.500
75.000
35.156
56.250
37.879
60.317
48.077
72.188
46.875
75.000
48.363
60.004
56.476
70.069
60.023
75.029
47.712
60.015
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 Hor-
izontal 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
51
Pixel Clock
Sync Polarity
(MHz)
(H/V)
25.175
+/-
25.175
-/-
28.322
-/+
30.240
-/-
57.284
-/-
31.500
-/-
31.500
-/-
36.000
+/+
40.000
+/+
50.000
+/+
49.500
+/+
65.000
-/-
75.000
-/-
78.750
+/+
85.500
+/+
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