NEC PA903X - Geometric Correction and Security

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3. Convenient Features
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.
Projected image
The drawing shows the upper right corner.
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.