Dell 4220 User Manual page 104

(continued)
Problem
TEMP light is solid amber
TEMP light is blinking amber If the projector fan fails, the projector will
The OSD does not appear on
the screen
The remote control is not
operating smoothly or works
only within a limited range
104 Troubleshooting Your Projector
Downloaded From projector-manual.com DELL Manuals
(continued)
Possible Solution
The projector has overheated. The display
automatically shuts down. Turn the display on
again after the projector cools down. If the
problem persists, contact Dell™.
automatically shut down. Try to clear the
projector mode by pressing and holding the
Power button for 10 seconds. Please wait for
about 5 minutes and try to power up again. If
the problem persists, contact Dell™.
Try to press the Menu button on the panel for
15 seconds to unlock the OSD. Check the
Menu Lock on page 52.
The battery may be low. Check if the laser
beam transmitted from the remote is too dim.
If so, replace with two new AAA batteries.