Garmin 720C User Manual

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Make sure the tape has been removed from the battery tray as 
described on page 32. 

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Make sure you are within 20 feet of the projector, and within 
range of the projector’s front or back sensor (approximately 30° to 
the left or right and 15° above or below).

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The remote control battery may not be installed correctly or may 
be low on power. Change the battery as described on page 32.

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Dim the room lights and turn off any fluorescents. Make sure the 
projector is not in direct sunlight. Strong lighting, especially 
fluorescent lights, may affect the projector’s infrared receivers.

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Turn off any nearby equipment that emits infrared energy, such 
as a radiant room heater.

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Make sure the mouse cable is securely connected to both your 
computer’s mouse port or USB port and the projector’s mouse 
port. For details, see page 13 (for laptops) or Appendix A (for 
other systems).

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Turn off Link 21L in the Advanced menu (see page 46).

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To use the USB mouse connection on a PC, your system must 
have a “clean” installation of Windows 98, Windows Me, 
Windows XP or Windows 2000. The connection may not work 
correctly if your system was upgraded from Windows 95.

720-730.book  Page 69  Thursday, October 30, 2003  11:32 AM