LG PA77U Owners Manual - Page 27
Using the Magic Remote Control, block the sight line may cause malfunctions.
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MAGIC REMOTE CONTROL 27 Using the Magic Remote Control 1 Shake the magic remote control lightly when there is no pointer displayed on the screen. A pointer will be displayed on the screen. - The pointer disappears if the remote control is not used for a certain period of time. 2 When you move the pointer signal transmitter up/down/left/right while pointing it toward the projector, the pointer moves. - If the pointer is not working properly, do not move the magic remote control for about 10 seconds, and then try again. 3 If you press the navigation button while moving the pointer on the screen, the pointer disappears, and the magic remote control works as a common remote control. 4 Use within an effective distance of 10 meters. (32.8 feet). Using the remote control from greater distances or when obstructions block the sight line may cause malfunctions. 5 Electronic devices nearby may cause communication interference. Devices such as microwave ovens and wireless LANs use the same frequency range (2.4 GHz) as the Magic Remote Control and may cause interference. 6 Take care not to bang it against other hard objects such as furniture or the floor.