LG 42LV555H Owner's Manual

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Glossary of Terms
75 OHM RF CABLE 
The wire that comes from an off-air 
antenna or cable service provider. The 
end looks like a hex-shaped nut with a 
wire through the middle. It screws onto 
the Antenna/Cable threaded jack on the 
back of the TV.
300 TO 75 OHM ADAPTER 
A small device that connects a 2-wire 
300 ohm antenna to a 75 ohm RF jack. 
It is usually about an inch long with two 
screws on one end and a round opening 
with a wire extending out the other end. 
A/V CABLES 
Audio/Video cables. Three cables 
bunched together —right audio (red), left 
audio (white), and video (yellow). A/V 
cables are used for stereo playback of 
videocassettes and for higher quality pic-
ture and sound from other A/V devices.
A/V DEVICE 
Any device that produces video or sound 
(VCR, DVD, cable box, or television).
AMPLIFIER 
An electronic device that amplifies sound 
from a television, CD player, VCR, DVD 
player, or other audio/video device.
ANTENNA 
The physical receiver of television signals 
sent over the air. A large metal piece of 
equipment does not always have to be 
visible to be using an antenna.
b-LAN
LodgeNet Interactive Corporation  
proprietary RF communication system 
used to configure/control TV via RF 
distribution system. 
CABLE 
Cable service box. Refers to the  
descrambler box cable subscribers use 
to receive cable programming signals.
CATV
Programming provided by a cable 
service.
COMPONENT VIDEO
Uses three wires for transporting three-
color video signals. The end result is 
usually better video quality. 
COMPOSITE VIDEO
Typical video jack, uses one wire for 
transporting three-color video signals.
DELETE 
Lets you remove channels from the list 
that the end user can scroll through  
using Channel Up/Down.
DIGITAL TELEVISION  
High-resolution, cinema-quality television 
signals transmitted digitally.
DVI 
Digital Video Interface. Accommodates 
analog and digital interfaces with a 
single connector. 
HDMI 
High-definition multi-media interface.
HDSTB 
High-definition set top box. Refers to a 
tuner device that receives high-definition 
television signals which have higher res-
olution than ordinary analog TV signals.
HDTV 
High-definition television. Refers to tele-
vision signals that have higher resolu-
tion than ordinary analog TV signals.
INPUT 
Refers to the input jack that receives a 
signal from a TV, VCR, DVD player, or 
other audio/video device.
JACK 
An input or output connector on the 
back of a TV, VCR, DVD player, or other 
audio/video device.
MONO SOUND 
Mono (monaural) sound is one channel 
of sound. On more than one speaker, all 
the speakers play the same audio. 
OUTPUT 
Refers to the output jack that sends 
a signal out of a VCR, DVD player, or 
other audio/video device.
PHYSICAL CHANNEL NUMBER
The actual channel number. Analog 
channels use the Physical Channel 
number and digital channels can use a 
Virtual Channel number. 
RGB (RED, GREEN, BLUE)
Connection input or output port available 
for producing a video image using three 
separate colors: Red, Green, and Blue. 
RS-232
Serial communication port through 
which firmware is downloaded.
2ND AUDIO PROGRAMMING/SAP 
Second Audio Programming (SAP) is 
another, separate audio channel avail-
able with some programming. Choosing 
SAP often refers to listening to audio in 
another language, such as Spanish or 
French.
SIGNAL 
Picture and sound traveling through a 
cable, or over the air, to the TV.
STEREO SOUND 
Stereo (Stereophonic) sound refers to 
audio that’s divided into right and left 
sides. 
TUNER 
Device that picks up the broadcast sig-
nal and turns it into picture and sound. 
VIRTUAL CHANNEL NUMBER 
A re-mapped channel number. Analog 
channels use the Physical Channel 
number; however digital channels use a 
Virtual (or false) Channel number.
XDS 
Extended Data Service. Additional 
program information included on the 
signal provided at the discretion of the 
broadcaster.
A list of definitions for some of the words found in this guide.
Note: Refer to www.atsc.org for further 
information.