Compaq Armada M300 Series Reference Manual page 139

Solving Infrared Problems
Problem
Data transmission problem. Direct sunlight,
*For instructions, refer to your infrared communications software documentation.
15-10 Troubleshooting
Continued
Possible Cause
energy-saving fluorescent
light, or flashing
incandescent light is close
to the infrared connections.
Interference from other
infrared-equipped devices.
Dirty infrared lens.
Distance.
Movement.
Orientation.
Physical obstruction.
Solution
Remove the interfering
light source(s).
Move the infrared ports
closer together.
Select a slower fixed baud
rate for both devices.*
Keep infrared-equipped
remote control units, such
as wireless headphones,
pointed away from the
infrared connection.
Clean the lens with a
lint-free cloth.
Verify that the infrared
ports are not more than 1.5
feet (0.5 meter) apart.
Do not move either unit
during data transmission.
Adjust the infrared ports so
that they point within 15
degrees of each other.
Remove any objects
between the two infrared
ports that could be
interfering with the
line-of-sight data
transmission.