CRT stands for cathode-ray tube. A television set using CRT technology is your typical family or home television, relatively inexpensive these days and still producing a good overall picture quality.

LCD stands for liquid crystal display. A television set using LCD technology is flatter and much thinner than a CRT television set. They have a higher resolution and can support high-definition digital video and cable. LCD is the same type of technology used in digital projectors on campus.

Sadly, no. The 40" LCD TVs on campus remain mounted in certain classrooms in Masters, Teel, Science, and Alumni Halls.

Yes. You may need a DVI, miniDVI, or miniVGA adaptor, which looks like this:

Plug the adaptor into the video port on your Mac. Connect the VGA cable to the other end of the adaptor.

If you have the following computer, you need the following adaptor:

• iBook G4 12", 14" ... miniVGA
• MacBook 13" ... miniDVI
• MacBook Pro 15", 17" ... DVI
• PowerBook G4 12" ... miniDVI
• PowerBook G4 15", 17" ... DVI

For further instructions on connecting, see below for the instructions on connecting a PC to an LCD TV.

Yes. To do so, you need a VGA cable, which looks like this:

In classrooms with mounted LCD TVs, one end of the VGA cable is already attached to the TV. You do not need to unplug it or move it. Plug and screw the other end of the VGA cable to the VGA port on the laptop, which looks like this:

Once the cable is plugged into both ports, turn on the LCD TV, then the laptop. If you see the image on the laptop but not through the LCD projector, see below for troubleshooting instructions.

Yes. You may need a video adaptor, which looks like this:

Plug the adaptor into the video port on your Mac. Connect the video port of the RCA cable (usually color-coded yellow) to the other end of the adaptor.

Plug the other end of the RCA cable into the television.

Yes. To do so, you need an S-video cable, which looks like this:

Plug one end of the S-video cable into the S-video port on the laptop, which looks like this:

Plug the other end of the S-video cable into the S-video port on the television or VHS/DVD player, which looks like this:

Press the TV/video button on the TV or on the remote control to make sure it's seeking the right device.

You may also need to change the channel. Press the channel down button (4) on the side of the TV or on the remote control to ensure that the TV is not seeking a cable channel like 2, 3, or 4.

Like a projector, the LCD TV is set up to look for input from several different types of sources. Sometimes it gets "stuck" on one when it should be looking for another.

If you're using a DVD/VHS player, camera, camcorder, or other video device with the LCD TV, the LCD TV should search for input from one of the video ports. If you're using a computer with the LCD TV, the LCD TV should search for input from one of the RGB ports. Press the Source button (1) on the side of the TV or on the remote control to make sure it's seeking the right device. You may also need to change the channel. Press the channel down button (4) on the side of the TV or on the remote control to ensure that the TV is not seeking a cable channel like 2, 3, or 4.

If you are using a PC, and the projector says "No input detected on RGB," you may need to activate the external monitor connection. Press the function (FN) key at the bottom left-hand side of the computer and the CRT/LCD function key at the top of the keyboard. This is usually the F7 or F8 key, and it should say CRT/LCD or have a small image of a monitor screen. Press both keys together, generally once but up to four times. This combination of keys toggles the display to show on the laptop only, the TV only, or on the laptop and TV at the same time.

If you are using a Mac, and the projector says "No input detected on RGB," you may need to go into System Preferences>Displays and tell the computer to Mirror the screen and the LCD TV's image.