ViewSonic X1-4K - Correcting Keystone

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Correcting Keystone
Keystoning refers to the situation where the projected image becomes a trapezoid
due to angled projection.
To correct this, besides adjusting the height of the projector, you may also:
1. Use the
Left/ Right/ Up/ Down keys on the projector or remote control
to display the keystone page (when the input source is not SMART SYSTEM).
2. Aer the keystone page is displayed, press
Up to correct keystoning at the top
of the image. Press Down to correct keystoning at the boom of the image.
Press Right to correct keystoning at the right side of the image. Press Left to
correct keystoning at the le side of the image.
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