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Chapter 5 Reference
5-6 Preset Timing

The following table shows factory preset video timing (for analog signal only).

Mode Dot clock Frequency Polarity
Horizontal: kHz
Vertical: Hz
VGA 640×480@60Hz 25.2 MHz Horizontal 31.47 Negative
Vertical 59.94 Negative
VGA 720×400@70Hz 28.3 MHz Horizontal 31.47 Negative
Vertical 70.09 Positive
PC-9801 640×400@56Hz 21.1 MHz Horizontal 24.83 Negative
Vertical 56.42 Negative
PC-9821 640×400@70Hz 25.2 MHz Horizontal 31.48 Negative
Vertical 70.10 Negative
VESA 640×480@72Hz 31.5 MHz Horizontal 37.86 Negative
Vertical 72.81 Negative
VESA 640×480@75Hz 31.5 MHz Horizontal 37.50 Negative
Vertical 75.00 Negative
VESA 800×600@56Hz 36.0 MHz Horizontal 35.16 Positive
Vertical 56.25 Positive
VESA 800×600@60Hz 40.0 MHz Horizontal 37.88 Positive
Vertical 60.32 Positive
VESA 800×600@72Hz 50.0 MHz Horizontal 48.08 Positive
Vertical 72.19 Positive
VESA 800×600@75Hz 49.5 MHz Horizontal 46.88 Positive
Vertical 75.00 Positive
VESA 1024×768@60Hz 65.0 MHz Horizontal 48.36 Negative
Vertical 60.00 Negative
VESA 1024×768@70Hz 75.0 MHz Horizontal 56.48 Negative
Vertical 70.07 Negative
VESA 1024×768@75Hz 78.8 MHz Horizontal 60.02 Positive
Vertical 75.03 Positive
Attention
• Display position may be deviated
depending on the PC connected,
which may require screen adjustment
using Adjustment menu.
• If a signal other than those listed in
the table is input, adjust the screen
using the Adjustment menu. However,
screen display may still be incorrect
even after the adjustment.
• When interlace signals are used, the
screen cannot be displayed correctly
even after screen adjustment using the
Adjustment menu.
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