❻ Correcting Horizontal And Vertical Keystone Distortion [Cornerstone] - NEC PA723U User Manual

❻ Correcting Horizontal and Vertical Keystone Distortion
[CORNERSTONE]
Use the [CORNERSTONE] feature to correct keystone (trapezoidal) distortion to make the top or bottom and the left
or right side of the screen longer or shorter so that the projected image is rectangular.
1. Project an image so that the screen is smaller than the area of the raster.
2. Pick up any one of the corners and align the corner of the image with a corner of the screen.
3. Press the Geometric. button either on the cabinet or the remote control.
Display the [GEOMETRIC CORRECTION] screen of the on-screen menu.
4. Move the cursor onto [MODE] by ▼ button and press the ENTER.
The mode selection screen will displayed on.
5. Select [CORNERSTONE] and press the ENTER.
Go back to display the [GEOMETRIC CORRECTION] screen of the on-screen menu.
The drawing shows the upper right corner.
Projected image
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3. Convenient Features