JVC LX-UH1B Operation Manual - Page 18

Adjusting the projected image Adjusting the projection angle The projector is equipped with 2 adjuster feet. These adjusters change the image height and projection angle. Screw the feet in or out as appropriate to aim and level the projection angle. If the screen and the projector are not perpendicular to each other, the projected image becomes vertical trapezoidal. To correct this, see "Correcting keystone" for details. Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes. Fine-tuning the image size and clarity To adjust the projected picture size, turn the zoom ring on the projector. To sharpen the picture, rotate the focus ring on the projector. Correcting keystone Keystoning refers to the situation where the projected image is noticeably wider at either the top or bottom. It occurs when the projector is not perpendicular to the screen. Besides adjusting the height of the projector, you may correct this manually by following the instructions below: 1. Do one of the following steps to display the Keystone window: • Press / or / on the projector. • Press / or / on the remote control. 2. The illustrations below show how to correct keystone distortion: Press / . Press / . • To correct keystoning at the bottom of the image, use or / . • To correct keystoning at the top of the image, use or / . When done, press BACK to save your changes and exit. 18 Operation