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3.7.3. Screen Format
The TV that you have connected to your set-top has an aspect ratio
(width-to-height ratio) of 4:3 (basic/standard) or 16:9 (widescreen).
You must set the appropriate TV Aspect Ratio on your set-top, so that it
is compatible with the TV.
Two settings are available: 4:3 and 16:9. You should set the TV Aspect
Ratio to 4:3 or 16:9 as appropriate. If you have a wide-screen television,
set the Screen Format option to 16:9. Otherwise, if you have a normal-
screen television, set the Screen Format option to 4:3. The default
setting is 4:3.
3.7.4. Display Format
If you set it to LetterBox option, wide-screen pictures then will be
reduced to fit to the width of the normal screen. Otherwise, set it to
FullScreen, then wide-screen pictures will be cut out on the left and
right sides equally to fit to the width of the normal screen. The default
setting is FullScreen.
3.7.5. Video Output
You can choose the video output: CVBS (composite) or RGB
(component). The default setting is CVBS.