101. IntroductionBattery InstallationNOTE: Actual operating range may differ slightly from that shown in the drawing.TIP: You can determine which remote sensor on the projector is enabled in wireless mode. The options are: [FRONT/BACK],[FRONT], or [BACK]. (→ page 68)• The infrared signal operates by line-of-sight up to a distance of about 22 feet/7 m and within a 60-degree angleof the remote sensor on the projector cabinet.• The projector will not respond if there are objects between the remote control and the sensor, or if strong lightfalls on the sensor.Weak batteries will also prevent the remote control from properly operating the projector.Operating Range for Wireless Remote Control30°30°30°30°30°30°30°30°Remote sensor on projector cabinetRemote controlRemote control7 m/22 feet 7 m/22 feet7 m/22 feet 7 m/22 feetOPEN1 Press firmly and slide the batterycover off.2 Install new batteries (AAA). En-sure that you have the batteries’polarity (+/−) aligned correctly.OPEN3 Slip the cover back over the bat-teries until it snaps into place. Donot mix different types of batter-ies or new and old batteries.