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Chapter 8. Appendix
•
Horizontal frequency
The time required to scan a single line from the left to the right side of the screen is called a horizontal cycle. The reciprocal number of a horizontal cycle is called horizontal
frequency. Horizontal frequency is measured in kHz.
•
Vertical frequency
The product displays a single image multiple times per second (like a fluorescent light) to display what the viewer sees. The rate of a single image being displayed repeatedly
per second is called vertical frequency or refresh rate. Vertical frequency is measured in Hz.
The screen will automatically be adjusted if a signal that belongs to the following standard signal modes is transmitted from your PC. If the signal transmitted from the PC does
not belong to the standard signal modes, the screen may be blank with the power LED on. In such a case, change the settings according to the following table by referring to the
graphics card user manual.
Resolution
Horizontal Frequency (kHz)
Vertical Frequency (Hz)
Pixel Clock (MHz)
Sync Polarity (H/V)
IBM, 720 x 400
31.469
70.087
28.322
−/+
MAC, 640 x 480
35.000
66.667
30.240
−/−
MAC, 832 x 624
49.726
74.551
57.284
−/−
MAC, 1152 x 870
68.681
75.062
100.000
−/−
VESA, 640 x 480
31.469
59.940
25.175
−/−
VESA, 640 x 480
37.861
72.809
31.500
−/−
VESA, 640 x 480
37.500
75.000
31.500
−/−
VESA, 800 x 600
35.156
56.250
36.000
+/+
VESA, 800 x 600
37.879
60.317
40.000
+/+
VESA, 800 x 600
48.077
72.188
50.000
+/+
VESA, 800 x 600
46.875
75.000
49.500
+/+
VESA, 1024 x 768
48.363
60.004
65.000
−/−
VESA, 1024 x 768
56.476
70.069
75.000
−/−
VESA, 1024 x 768
60.023
75.029
78.750
+/+
VESA, 1152 x 864
67.500
75.000
108.000
+/+
