VGA to TV & HDTV Scan Converter
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The VHD-2 samples the input video signal at full resolution coming
in.
In FIT mode the unit either down-scales the input signal or up-scales
it in order to “fit” it to the output.
Keep in mind that with S-Video or Composite Video the output
resolution is either 480 lines, or 576 lines (NTSC/PAL), and for the
HDTV component output the resolution could be as low as 480 or as
high as 1080 depending on the HDTV mode that you set.
In 1:1 mode the VHD-2 does not perform any scaling of the input
image signal and theoretically you will get the best image possible
on the output, but if your input resolution does not match the output
resolution the output image may appear either zoomed or will not fit
the entire screen.
Let’s assume that your input from the PC is at 800x600. If you set
the 1:1 mode, then the S-Video and CV outputs will only show
640x480 pixels of the top left portion of the image, On the other hand
if you are using the HDTV output set to say 720p (1280x720) then
output will not fill the screen and you will have the 800x600 pixels
displayed in the center of the HDTV output.
1:1 mode should be avoided and only used if you want to maintain
the aspect ratio when using a widescreen HDTV mode. In 1:1 mode
the Zoom function is disabled.
Original PC
800x600
FIT mode on TV
FIT mode on HDTV
1:1 mode on TV
1:1 mode on HDTV
