No Signal
If you see a blank screen or a blue screen with the No Signal message after turning on your computer or video source, try the following:
■Make sure the cables are connected correctly, as described on page 12 (for laptops) or in Appendix A (for other systems).
■Make sure the power light is green and not flashing and the lens cover is off.
■Try restarting your computer.
■If you’ve connected more than one computer and/or video source, you may need to press the Computer/YCbCr or Video button on the projector’s control panel 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 laptop:■Press the function key that lets you display on an external
monitor. It’s often labelled with an icon such as 
but it may also be labelled CRT/LCD. You may have to hold down the Fn key
while pressing it. Check your laptop’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.
Allow a few seconds for the projector to sync up after pressing it.
■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.
22Using the Projector