GLOSSARY

4:3

4:3 is an aspect ratio of traditional squarish National Television Systems Committee (NTSC) TV screens; it stands for four

 

units of width for every three units of height.

Audio Video (A/V)

A term often used when discussing a channel on a TV receiver or on video equipment, which has been

 

especially designed to accept VCR audio-video signals. This channel automatically activates special circuitry

 

within the TV set to prevent picture distortion and skewing. It is also used for audio-video processors, which

 

handle both types of signals.

Cable Converter Box

A device that allows your television to receive the expanded number of channels provided by broadcasters. Some of these

 

programs provided by the broadcast may not be free, you’ll have to pay to view them.

Coaxial Cable

Coaxial cable is a copper cable used to connect cable signal coming from Cable TV Company to the TV.

Composit Video Input

An analog encoded video signal that includes vertical and horizontal synchronizing information. Since both luminance

Connection

(brightness) and chrominance (color) signals are encoded together, only a signal connection wire is needed. A composite

 

video jack is usually a single RCA-type.

Component Video

Provides the highest possible color and picture resolution on the playback of digital signal source material like DVD players.

Input Connection

The color difference signals (Pb, Pr) and the luminance(Y) signals are connected separately which allows for improved

 

color bandwidth information (not possible when using composite video or S-Video connections).

Letterbox

Letterbox refers to the image of a wide-screen picture on a standard 4:3 aspect ratio television screen, typically with block

Luminance

The brightness or black-and-white component of a color video signal. Determines the level of picture detail.

NTSC

National television system committee. The organization that developed the analog television standard currently in use in the

 

U.S., Canada, and Japan. Now generally used to refer to that standard. The NTSC standard combines blue, red, and green

 

signals modulated as an AM signal with an FM signal for audio.

S-Video

Separated video. An encoded video s ignal which separates the brightness from color data. S-Video can greatly improve

 

the picture when connecting TVs to any high quality video source such as digital broadcast satellite (DBS) and DVDs.

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Magnavox 20MT1336 manual Glossary, Component Video