Altech UEC DT 3900 - Manual (Page 19)

19
TELEVISION SYSTEM SET UP
This product is designed to suit most types of Televisions. All outputs from
the DT3900 are active simultaneously. For use of Component video (Green,
Blue, Red) on older style Television sets you may need to reduce.
The resolution to 576i is as shown above. Please select confirm after
change.
The set top can also be configured for use on an old or a new widescreen
TV.
The aspect ratio 4:3 or 16:9 can be selected from the remote control key
[ASPECT].