GLOSSARY
4:34:3 is an aspect ratio of traditional squarish National Television Systems Committe (NTSC) TV screens; it stands for four
units of width for every three units of height.
Aspect RatioThe ratio between the width and height of the TV picture on the screen. In a normal TV set the aspect ratio is 4
to 3 (4:3).
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 BoxA 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, youll have to pay to view them.
Coaxial CableCoaxial 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 ConnectionThe 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.
Luminance The brightness or black-and-white component of a color video signal. Determines the level of picture detail.
NTSCNational 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 signal 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.
CLEANINGANDCARE
WARNING ConcerningStationaryImagesontheTVScreen:PlacementoftheTV
DonotleavestationaryorletterboximagesonscreenUforToavoidcabinetwarping,cabinetcolorchanges,and
extendedperiodsoftime.Thiscancauseunevenpicture-tubeincreasedchanceofsetfailure,donotplacetheTVwhere
aging.temperaturescanbecomeexcessivelyhot;forexample,in
NormaluseoftheTVshouldinvolvetheshowingofpicturesdirectsunlightornearaheatingappliance.
thatcontainconstantlymovingandchangingimagesthatU Befillsurethetoallowafreeflowofairtoandfromtheperfo-
screen.Becarefulnottoleavenonmovingimagesonscreenratedbackcoveroftheset.
forextendedperiodsoftime,ortodisplaythesameimagesCleaning
onscreentoofrequently,becausesubtleghostimagescanbe
U Toavoidpossibleshockhazard,besuretheTVisunplugged
leftonthepicturetubes.Sourcesofstationaryimagesmaybefromtheelectricaloutletbeforecleaning.
DVDdisks,laserdisks,videogames,CD-idisks,videotapes,
digitaltelevisionboxes,broadcastchannels,cablechannels,sat-U RegularlydusttheTVwithadry,nonscratchingdusterto
keeptheTVclean.
ellitechannels,andothers.Herearesomeexamplesofstation-U WhencleaningtheTV,takecarenottoscratchordamage
aryimages(thisisnotanall-inclusivelist;youmayencounter
othersinyourviewing):thescreensurface.Avoidwearingjewelryorusinganything
abrasive.Donotusehouseholdcleaners.Wipethefront
U DVDmenuslistingsofDVDdiskcontentscreenwithacleanclothdampenedwithwater.Useeven,
U Letterboxblackbarsshownatthetopandbottomofthe
easy,verticalstrokeswhencleaning.
TVscreenwhenawidescreen(16:9)movieisviewedonaU Gentlywipethecabinetsurfaceswithacleanclothor
TVwithstandard(4:3)aspectratio.spongedampenedinasolutionofcool,clearwateranda
U Video-gameimagesandscoreboards
mildsoapordetergent.Useaclean,dryclothtodrythe
U Televisionstationlogospresentaproblemiftheyarewipedsurfaces.
brightandstationary;movingorlow-contrastgraphicsareU Occasionallyvacuumtheventilationholesorslotsinthe
lesslikelytocauseunevenagingofthepicturetube
backcoveroftheset.
U Stock-markettickerspresentedatthebottomoftheTVU Neverusethinners,insecticidesprays,orotherchemicalson
screen
ornearthecabinet,astheymightcausepermanentdamage
U Shoppingchannellogosandpricingdisplaysbrightandofthecabinetfinish.
shownconstantlyorrepeatedlyinthesamelocationonthe
TVscreen.
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