Connecting a projector to a laptop computer is simple. In the most basic terms, the computer and projector each need a power source, and they need to talk to each other. If you can remember those two things, hooking up a projector will be a snap.
Set up your projector and laptop in front of the screen. Locate the power cords for each and plug them into the back of the units and the wall outlet.
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Locate the inputs for the connector cable on both the projector and the laptop. They will be blue.
Locate the connector cable. It should have two trapezoid-shaped blue ends with connecting screws on either side. Insert one end into each device. The ends are interchangeable, so it doesn't matter which end connects to what.
Turn the computer and projector on. After everything boots up, if you get a "No Signal" message on your screen, press the Fn and F8 buttons on the laptop at the same time. Your image should appear. (Your computer may have a different combination of buttons to press to solve this problem. This works on a Dell Latitude D500. Consult the manufacturer of your laptop for more information.)
Use a remote control in conjunction with your projector, if you'd like. This will eliminate the need for you to stand near your laptop as you give your presentation.
Look for a remote that works from at least 50 feet away, particularly if you are going to be using your projector in a variety of settings. A remote control hooks to your laptop using a simple USB connection.