NEC NP-PX800X User Manual - Page 131

NEC NP-PX800X Manual

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5. Using On-Screen Menu Using Multi-Screen Compensation [MULTI-SCREEN COMP.] This feature allows you to match brightness of images projected from multiple projectors. Before using [MULTI-SCREEN COMP.], you need to match color of images projected from multiple projectors. MODE OFF: Turns off this function. ON: Turns on this function. The [BRIGHTNESS] and the [CONTRAST] can be adjusted. CONTRAST Adjusts the bright part of the picture. BRIGHTNESS Adjusts the dark part of the picture. Adjusting 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.] → [MODE] → [ON]. 4. Adjust the dark part of the images. Press the H button to select [BRIGHTNESS] and use the  or  to match the black part of another projector. 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 H button to select [CONTRAST] and use the  or  to match the white part of another projector. 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. TIP: • When you use multiple projectors, you can use the [CONTROL ID] function to operate a single projector or all the projectors from the remote control. (→ page 119) • Your setting will not be affected even when [RESET] is done from the menu. [REF. WHITE BALANCE] This feature allows you to adjust the white balance for all signals. The white and black levels of the signal are adjusted for optimum color reproduction. Uniformity is also adjusted when the redness (R) and blueness (B) of the white color in the screen's horizontal (left/ right) direction are uneven. 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. 117

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117
5. Using On-Screen Menu
Using฀Multi-Screen฀Compensation฀[MULTI-SCREEN฀COMP.]
This฀feature฀allows฀you฀to฀match฀brightness฀of฀images฀projected฀from฀multiple฀projectors.
Before฀using฀[MULTI-SCREEN฀COMP.],฀you฀need฀to฀match฀color฀of฀images฀projected฀from฀multiple฀projectors.
MODE
....................
OFF: Turns off this function.
ON: Turns on this function. The [BRIGHTNESS] and the [CONTRAST] can be adjusted.
CONTRAST
............
Adjusts the bright part of the picture.
BRIGHTNESS
.........
Adjusts the dark part of the picture.
Adjusting
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.]฀
→
[MODE]
→
[ON].
4. Adjust the dark part of the images.
Press the
฀button฀to฀select฀[BRIGHTNESS]฀and฀use฀the฀
or
to match the black part of another projector.
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
or
to match the white part of another projector.
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.
TIP:
•฀ When฀you฀use฀multiple฀projectors,฀you฀can฀use฀the฀[CONTROL฀ID]฀function฀to฀operate฀a฀single฀projector฀or฀all฀the฀projectors฀from฀
the฀remote฀control.฀(
→
page
119
)
•฀ Your฀setting฀will฀not฀be฀affected฀even฀when฀[RESET]฀is฀done฀from฀the฀menu.
[REF. WHITE BALANCE]
This฀feature฀allows฀you฀to฀adjust฀the฀white฀balance฀for฀all฀signals.
The฀white฀and฀black฀levels฀of฀the฀signal฀are฀adjusted฀for฀optimum฀color฀reproduction.
Uniformity฀is฀also฀adjusted฀when฀the฀redness฀(R)฀and฀blueness฀(B)฀of฀the฀white฀color฀in฀the฀screen’s฀horizontal฀(left/
right)฀direction฀are฀uneven.
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.