Troubleshooting - InFocus LP755 User Manual

M a i n t e
NOTE: Macintosh computers
require a specific power-up
sequence: the projector must be
turned on before you turn on the
computer.
42
n a n c e &

Troubleshooting

If you're experiencing trouble with the projector, follow these
steps to make sure everything is properly connected before you
call Technical Support for assistance.
1 Check cable connections. Verify that all computer, CableWiz-
ard and power cables are properly connected.
2 Verify that all power is switched on.
3 Verify that the projector is not in standby (the Standby LED on
the keypad is lit when the projector is in standby).
4 If the projector still doesn't display an image, restart the com-
puter.
5 If the problem still exists, unplug the cable from the computer
and check the computer monitor's display. The maximum res-
olution that the projector can display is 1280x1024 pixels, pref-
erably 1024x768. The problem might be with the graphics
controller in your computer rather than with the projector.
When you reconnect the projector, remember to turn the com-
puter and monitor off before you power up the projector.
Power the equipment back up in this order: projector, monitor,
computer.
6 If you're using a laptop computer and it is not displaying your
presentation, make sure you have activated the computer's
external video output. Most laptop computers do not auto-
matically turn on their external video port when a secondary
display device such as a projector is connected. Refer to
page 53 for more information.
7 If the problem still exists, read through the problems and solu-
tions in this chapter.
T r o u b l e s h o o t i n g