Input Signal Compatibility Table (Pc Video Input Terminal - NEC DT20 User Manual

■ 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.
Signal Name
NTSC RGB
PAL/SECAM RGB
VGA-GR1
VGA-GR2*
VGA-GR3*
VGA-TX1*
VGA-TX2*
640✕480 72Hz
640✕480 75Hz
640✕480 85Hz
Mac13"RGB
800✕600 56Hz
800✕600 60Hz
800✕600 72Hz
800✕600 75Hz
Mac16"RGB
1024✕768 43Hz
1024✕768 60Hz
1024✕768 70Hz
1024✕768 75Hz
1024✕768 85Hz
MAC19"1024✕768
MAC21"1152✕864
1280✕960 60Hz
1280✕960 85Hz
1280✕1024 60Hz
1280✕1024 75Hz
1280✕1024 85Hz
1600✕1200 60Hz
1600✕1200 65Hz
1600✕1200 70Hz
1600✕1200 75Hz
1600✕1200 85Hz
• When the input signal resolution is lower than 1024✕768 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.
Resolution
(Horizontal ✕ Vertical)
- -
- -
640 480
640 400
640 350
720 400
720 350
640 480
640 480
640 480
640 480
800 600
800 600
800 600
800 600
832 624
1024 768
1024 768
1024 768
1024 768
1024 768
1024 768
1152 864
1280 960
1280 960
1280 1024
1280 1024
1280 1024
1600 1200
1600 1200
1600 1200
1600 1200
1600 1200
Connecting to a Personal Computer
Horizontal Frequency Vertical Frequency
(kHz)
15.7
15.6
31.5
31.5
31.5
31.5
31.5
37.8
37.5
43.2
35.0
35.1
37.8
48.0
46.8
49.7
35.5
48.3
56.4
60.0
68.7
60.2
68.7
60.0
85.9
64.0
80.0
91.1
75.0
81.3
87.5
93.8
106.3
E-25
Compatibility
(Hz)
✕
60
✕
50
●
60
●
70
●
70
●
70
●
70
●
72
●
75
●
85
●
66
●
56
●
60
●
72
●
75
●
74
✕
43
●
60
●
70
●
75
●
85
●
75
●
75
●
60
●
85
●
60
●
75
●
85
●
60
✕
65
✕
70
✕
75
✕
85