NEC DT20 User Manual - Page 25

Connecting to a Personal Computer ■ Input Signal Compatibility Table (PC video input terminal) The DT20 supports the signals marked by ● in the following table. Note that on some PC models, 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 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 Horizontal Frequency Vertical Frequency (kHz) (Hz) 15.7 60 15.6 50 31.5 60 31.5 70 31.5 70 31.5 70 31.5 70 37.8 72 37.5 75 43.2 85 35.0 66 35.1 56 37.8 60 48.0 72 46.8 75 49.7 74 35.5 43 48.3 60 56.4 70 60.0 75 68.7 85 60.2 75 68.7 75 60.0 60 85.9 85 64.0 60 80.0 75 91.1 85 75.0 60 81.3 65 87.5 70 93.8 75 106.3 85 Compatibility • 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. E-25