You see a blue screen with the message No Signal displayed.
■Make sure the cables are connected correctly, as described in Chapter 1 or Appendix A.
■Try restarting your computer.
■If you’ve connected more than one computer and/or video source, you may need to press the Computer or Video button (on the control panel) or the Comp1, Comp2/YCbCr, or Video button (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’ve connected a second computer or you’re using component video, make sure the BNC option in the Setting menu is correct. See page 52 for more information.
■Make sure the Computer 1 selector switch on the projector’s interface panel is set to Analog (for standard computer video) or Digital (for a computer using DVI video). See page 12.
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 to 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.
If you’re using a PowerBook:
1.From the Apple menu, select Control Panels, then click
Monitors and Sound.
2.Click the Arrange icon.
70Solving Problems