E-25
Connecting to a Personal Computer
Signal Name Resolution
Horizontal Frequency
Vertical Frequency
Compatibility
(Horizontal Vertical) (kHz) (Hz)
NTSC RGB - - 15.7 60
PAL/SECAM RGB - - 15.6 50
VGA-GR1 640 480 31.5 60
VGA-GR2* 640 400 31.5 70
VGA-GR3* 640 350 31.5 70
VGA-TX1* 720 400 31.5 70
VGA-TX2* 720 350 31.5 70
640480 72Hz 640 480 37.8 72
640480 75Hz 640 480 37.5 75
640480 85Hz 640 480 43.2 85
Mac13"RGB 640 480 35.0 66
800600 56Hz 800 600 35.1 56
800600 60Hz 800 600 37.8 60
800600 72Hz 800 600 48.0 72
800600 75Hz 800 600 46.8 75
Mac16"RGB 832 624 49.7 74
1024768 43Hz 1024 768 35.5 43
1024768 60Hz 1024 768 48.3 60
1024768 70Hz 1024 768 56.4 70
1024768 75Hz 1024 768 60.0 75
1024768 85Hz 1024 768 68.7 85
MAC19"1024768 1024 768 60.2 75
MAC21"1152864 1152 864 68.7 75
1280960 60Hz 1280 960 60.0 60
1280960 85Hz 1280 960 85.9 85
12801024 60Hz 1280 1024 64.0 60
12801024 75Hz 1280 1024 80.0 75
12801024 85Hz 1280 1024 91.1 85
16001200 60Hz 1600 1200 75.0 60
16001200 65Hz 1600 1200 81.3 65
16001200 70Hz 1600 1200 87.5 70
16001200 75Hz 1600 1200 93.8 75
16001200 85Hz 1600 1200 106.3 85
Input Signal Compatibility Table (PC video input terminal)

The DT20 supports the signals marked by in the following table. Note that on some PC mod-

els, flickering and blurring occur in the projected image. If this happens, adjust the projected

image in the Sync Adjustment menu.

When the input signal resolution is lower than 1024768 dots, enlarge the display. When it is higher,
compress the display.
Signals marked with an * may become fuzzy if too much vertical keystone compensation is applied. When
using one of these signals, set the keystone compensation so that it does not distort the image.