LG 37LD650H Manuale Utente

Pagina di 167
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206-4137
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, or other Audio/Video device.
ANTENNA 
The physical receiver of television sig-
nals sent over the air. A large metal piece 
of equipment does not always have to be 
visible to be using an antenna.
b-LAN
Licensed proprietary RF communication 
system used to configure/control TV via
RF distribution system. 
CABLE 
Cable service box. Refers to the de-
scrambler 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 us-
ing Channel Up/Down.
DIGITAL TELEVISION  
High-resolution, cinema-quality televi-
sion 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, or other A/V 
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 avail-
able 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 (XDS) is ad-
ditional program information included on 
the signal provided at the discretion of 
the broadcaster.
Note: Refer to www.atsc.org for further 
information.
Glossary of Terms
A list of definitions for some of the words found in this guide.