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NEC PA721X User Manual page 117

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ON: Turns on this function to make the screen darker. The [BRIGHTNESS] and the [CONTRAST] can be
adjusted.
CONTRAST ............ Adjusts the bright part of the picture.
BRIGHTNESS ......... Adjusts the dark part of the picture.
1. Prepare black and white images so that the images can be displayed on the computer screen.
2. Display the black image on the computer screen, and project the image from the projector.
3. Select [MULTI-SCREEN COMP.]
4. Adjust the dark part of the images.
Press the
button to select [BRIGHTNESS] and use the
5. Display the white screen on the computer screen.
Project the image from two or more projectors.
6. Adjust the bright part of the images.
Press the
button to select [CONTRAST] and use the
Moving the slide bar toward [+] (plus) can change the white part of the image. Should this happen, move the
slide bar toward [−] (minus) to adjust the brightness.
[REF. WHITE BALANCE]
BRIGHTNESS R/BRIGHTNESS G/BRIGHTNESS B
.............................. These adjust the picture's black color.
CONTRAST R/CONTRAST G/CONTRAST B
.............................. These adjust the picture's white color.
UNIFORMITY R ...... The further this is set to the + side, the stronger the redness on the left side of the picture (increasing
towards the left edge) and the weaker the redness on the right side of the picture (decreasing towards the
right edge).
This is reversed when set to the – side.
UNIFORMITY B ...... The further this is set to the + side, the stronger the blueness on the left side of the picture (increasing
towards the left edge) and the weaker the blueness on the right side of the picture (decreasing towards the
right edge).
This is reversed when set to the – side.
[MODE]
[ON].
6
5. Using On-Screen Menu
or
to match the black part of another projector.
or
to match the white part of another projector.
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