91. IntroductionBattery Installation1 Press the catch and re-move the battery cover.2 Install new ones (AA). Ensurethat you have the batteries’ po-larity (+/–) aligned correctly. Slip the cover back over the bat-teries until it snaps into place.NOTE: Do not mix different types ofbatteries or new and old batteries.Remote Control Precautions• Handle the remote control carefully.• If the remote control gets wet, wipe it dry immediately.• Avoid excessive heat and humidity.• Do not heat, take apart, or throw batteries into fire.• If you will not be using the remote control for a long time, remove the batteries.• Ensure that you have the batteries’ polarity (+/–) aligned correctly.• Do not use new and old batteries together, or use different types of batteries together.• Dispose of used batteries according to your local regulations.Operating Range for Wireless Remote Control121230°30°30°30°30°30° 30°30°remote sensor on projector cabinet7m/22 feet 7m/22 feetremote controlNOTE: Actual operating range may differ slightlyfrom that shown in the drawing.TIP: You can determine which remote sensor onthe projector is enabled in wireless mode. The op-tions are: front, rear or both. (→ page 113)• The infrared signal operates by line-of-sight up to a distance of about 22 feet/7 mand within a 60-degree angle of the remotesensor on the projector cabinet.• The projector will not respond if there areobjects between the remote control andthe sensor, or if strong light falls on thesensor.Weak batteries will also prevent the remotecontrol from properly operating the projec-tor. 7m/22 feet 7m/22 feetremote control