NEC LT280 Projector User Manual


 
29
Correcting Keystone Distortion
Auto Keystone Correction
The Auto Keystone correction feature will correct vertical distortion of a projected image on the screen. No special
operation required. Just put the projector on a flat surface.
To use the Auto Keystone function, first you must select [Auto] in [Keystone] from the menu.
Manual Keystone Correction
You can also correct keystone distortion manually.
To do so:
1. Press the 3D REFORM button on the remote control or the projector
cabinet.
The Keystone screen will be displayed on the screen.
When [Auto] is selected in [Keystone] from the menu, start from step 3.
2. Press the SELECT
̄
button to select [Vertical] and then use the
SELECT
̇
or
̈
so that the left and right sides of the projected im-
age are parallel.
* Adjust the vertical keystone distortion.
3. Align the left (or right) side of the screen with the left (or right) side
of the projected image.
Use the shorter side of the projected image as the base.
In the right example, use the left side as the base.
NOTE: When [Manual] is selected in [Keystone] from the menu, project an image
adjusting projector position so that the screen is smaller than the area of the projected
image. See page 77 for selecting [Manual] in [Keystone].
3. Projecting an Image (Basic Operation)
Screen frame
Projected area
Align left side
4. Press the SELECT
̆
button to select [Horizontal] and then use the
SELECT
̇
or
̈
so that the top and bottom sides of the projected
image are parallel.
Adjust the horizontal keystone distortion.