NEC LT154 - Manual (Page 37)

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Image Options
Keystone
This feature corrects the keystone (trapezoidal) distortion to make
the top of the screen longer or shorter to be the same as the bottom.
Use the
ᮤ or ᮣ buttons on the slide bar to correct the keystone
(trapezoidal) distortion.
Keystone distortion Normal
NOTE: The maximum keystone angle that can be corrected is 40 degrees up-
ward and 20 degrees downward with the projector placed horizontally on the
ground plane.
Depending on the type of graphics being used, the picture may get
blurred or keystone correction may not be possible when excessive
keystone correction is used.
The idea is, the closer you are to native resolution, the better image
you will see.
Color Temperature
This feature adjusts the color temperature using the slide bar.
Move the slide bar to the right to increase the color temperature for a
bluish image; to the left to decrease it for a reddish image.
Lamp Mode
Gamma Correction
Use the ᮤ or ᮣ button to choose "Normal" when in a lighted room and
"Natural 1&2" when in a darkened room. "Natural 1" for better flesh
tone; "Natural 2" for true reproduction of middle tones.
Each mode is recommended for :
Normal ......... For the regular picture
Natural 1 ...... For true color reproduction of natural tones
Natural 2 ...... For dark portions of a picture
Aspect Ratio
Aspect Ratio allows you to select the best Aspect mode to display your
source image.
When 4:3 is selected from the source (i.e. DVD player), the following
selections will display:
Standard
4:3 Aspect All 4 sides
stretched Left & Right
stretched Left and right
stretched
16:9 image
displayed
in 4:3 mode All 4 sides
stretched
Normal Zoom Wide Zoom Cinema
Normal Zoom Wide Zoom Cinema
Left & right
stretched Left and right
stretched to
display the true
aspect
This feature enables you to select two brightness mode of the lamp:
High-Bright and Eco modes. The lamp life can be extended up to 2000
hours by using the Eco mode.
High-Bright Mode ....... This is the default setting.
Eco Mode .................... Select this mode to increase the lamp life.
NOTE: If you have selected the Eco mode, the lamp lights in High-Bright mode
for one minute after the projector is turned on. After one minute the lamp will
change to Eco mode.
When 16:9 is selected from the source (i.e. DVD player), the following
selections will display: