User`s guide
168 Solving Problems
■ If you are projecting from a DVD player or other video source, 
make sure you turn it on and press its 
Play button.
You’ve connected a computer and see a blue screen with the 
message No Signal displayed.
■ Make sure the cables are connected correctly, as described on 
page 38.
■ If you’ve connected a computer and one or more video sources, 
you may need to press the 
Source Search button on the 
projector or one of the source buttons on the remote control to 
select the correct source. Allow a few seconds for the projector to 
sync up after pressing the button.
If you’re using a PC notebook: 
■ Hold down the Fn key on the keyboard and press the function 
key that lets you display on an external monitor. It may have an 
icon such as  , or it may be labelled 
CRT/LCD. Allow a few 
seconds for the projector to sync up after pressing it. Check your 
notebook’s manual or online help for details. 
On most systems, the   key lets you toggle between the LCD 
screen and the projector, or display on both at the same time.
■ Depending on your computer’s video card, you might need to use 
the Display utility in the Control Panel to make sure that both the 
LCD screen and external monitor port are enabled. See your 
computer’s documentation or online help for details.
If you’re using Mac OS X: 
1. Open 
System Preferences. 
2. Click 
Displays.
3. Click 
Detect Displays. 
4. Make sure the 
VGA Display or Color LCD dialog box is selected.
5. Click the 
Arrangement or Arrange tab.
6. Make sure the 
Mirror Displays checkbox is selected. 










