Canon DC-4381 User Manual page 32

Others
Problem
Hot air is emitted from the
air outlet grilles.
The menu can't be used.
The remote control doesn't
function easily at all.
displays on the upper-
right of the screen.
displays on the center
of the screen.
EN-32
Cause and solution
This air comes out as a result of cooling the inside of
the projector. This isn't a product malfunction.
The microcomputers inside the projector may be
wrongly operating because of noise.
Press the POWER button twice to turn off the lamp
and unplug the power cord from the wall outlet. Wait
about 1 minute, plug the power cord in, and try
again
Check that the battery is loaded in the remote control
or the battery isn't weak.
Check that the remote control sensor isn't exposed
to direct sunlight or fluorescent light.
Use the remote control within its operation range.
Low battery power. Charge the battery. You may
press the MENU button to cancel the icon display.
No battery power. Charge the battery. You may press
the MENU button to cancel the icon display.