[. . . ] Try moving or turning the HE1000A Remote Eye so that it is not affected by strong sunlight or light from at television screen. If flickering persists, try turning off the television receiver to see if it is affecting the HE1000A. The HE1000A Remote Eye may be moved away from the television to eliminate problems. [. . . ] Connect the cable coming from the back of the Remote Eye to the IR jack on the Connecting Block. Connect the One-Foot Cable from one of the OUT jacks on the Connecting Block to the REMOTE IN jack on the rear of any Harman Kardon product (except the Citation 22, 24 and 25) having such a jack. Operation Use the Reomote Eye as you would use the remote sensor window on any audio or video component. Simply point the handheld remote control at the Remote Eye and press the proper button. The maximum operating distance between the remote control and the Remote Eye will be different for each remote control and will be different than the range of the remote control when pointed directly at the audio or video component. Connecting the unit to an supplying a higher voltage may create a fire hazard. Handle the Power Cord Gently s To disconnect the power supply from the AC outlet, pull on the power supply itself, not on the cord. s Disconnect the power supply from the AC outlet whenever the unit is to be left unused for an extended period of time. s Do not place furniture or other heavy objects on the cord, and avoid dropping heavy objects on it. Place the unit on a firm and level surface or fasten it securely in place. Avoid installing it: s In moist or humid places: s Close to heating equipment or in places exposed to direct sunlight. Before moving the unit, be sure to unplug the power supply from the AC outlet and disconnect all wires. Tampering with internal components can cause fire or shock, and may void your warranty. If water or small objects enter the unit, unplug the power cord immediately. [. . . ] You can confirm this by turning the TV set off and checking for operation. Similarly, compact fluorescent lamps and other lighting may also cause interference. It may then be necessary to change the location of the lamps or the HE1000A Remote Eye. [. . . ]