NEC VT37 manual Correcting Keystone Distortion, Projecting an Image Basic Operation

3. Projecting an Image (Basic Operation)

￿Correcting Keystone Distortion

This feature corrects the keystone (trapezoidal) distortion to make the top of the screen longer or shorter to be the same as the bottom.

Note that the vertical keystone angle can be corrected between 30 degrees upward and 30 degrees downward of projector tilt from level.

NOTE: Keystone correction angle could be less than 30 degrees depending on some kinds of signal and aspect ratios.

To do so:

1.Press the MENU button. The menu will be displayed.

2.Use the SELECT ￿ button to select “Image” and then press the SELECT ￿ button. The “Keystone” will be displayed.

3.Correct the vertical distortion.

Use the SELECT ￿ or ￿ button to correct the vertical keystone distortion.

NOTE: The Keystone Correction feature can cause an image to be slightly blurred because the correction is made electronically.

4. Press the MENU button to close the menu.

NOTE: You can save the changes using the Keystone Save feature when you turn off the projector. See page 35.

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