26 Reference GuideInstallation and Setup■ To control page up and page down on a computer, press the page up 1 and pagedown 1 buttons. This feature requires a USB connection between the projectorand computer.■ Slide the remote control case open to use additional buttons.❏ To optimize the picture for the type of input signal, press the business graphicsor the theatre video button.❏ To change projector settings using the on-screen menu, press enter and usethe navigation buttons to make the changes. See “To change settings using theon-screen menu” on page 34 for more details.❏ To exit from any on-screen menu or adjustment, press the back button one ormore times.❏ To adjust synchronization, press the auto-sync button.For a picture showing the hidden remote control components, see “Remote control” onpage 14.✎ From within a distance of 9 m (30 ft), aim the remote control at the screen or at thefront or back of the projector.Å WARNING: To reduce the risk of injury to the eyes, do not look directly into theremote control laser light, and do not point the laser light into anyone’s eyes.To reset the projectorIf the projector becomes completely unresponsive, you can reset all circuits bydisconnecting power.1. Press the power button on the projector or remote control to turn off the projector,then wait until the cool-down period ends and the power button stops blinking. Ifthe projector does not turn off, continue to the next step.2. Turn the main disconnect switch off and wait 60 seconds. Then turn it on.3. Press the power button to restart the projector.