Samsung HPR4272X/XAC Service Manual Download

Page: 85 / 128

Reference Information

Samsung Electronics

14-3

14-2 Technical Terms

Virtual Channel

In digital channels, a virtual channel is used. A virtual channel
is a function that enables users to watch a channel by selecting
a virtual channel number regardless of the region of the user.
Run Auto Channel Scan for digital broadcasts, tune in to a UHF
channel number according to the region for terrestrial broad-
casts, or tune into a channel number allocated by the cable
broadcasting station for a cable TV network, and then select a
displayed virtual channel.
For example, even if you tune into channels UHF 14(MBC),
15(KBS1), 16(SBS), 17(KBS2) and 18(EBS) broadcast from
Kwanak mountain in Seoul, you can watch the channels using
virtual channels such as 11-1(MBC), 9-1(KBS1), 6-1(SBS), 7-
1(KBS2) and 10-1(EBS) regardless of your region and the
actual local channel number. The virtual channel numbers may
be used nationwide, but the virtual channel numbers may vary
depending on the local broadcasting stations.
(Since the digital channel numbers may vary depending on
your region and can be changed by the broadcasting policy,
ask your local broadcasting station or regional cable TV net-
work company about the channel numbers.) If the virtual chan-
nel numbers are saved and the TV set can receive digital
broadcasting, you can watch a digital channel by pressing the
DTV+ button and pressing the first two digits of the correspond-
ing virtual channel number.

Custom Color Adjustment

Using this function, a user can adjust the color according to
personal preferences (Red, Grass-Color, Sky-Color, Gold-
Color, Skin-Color, White, Standard, Custom) without affecting
other colors using automatic selection mode or fine adjustment
mode.

Simultaneous Screen

Using this function, a user can view two video signals from
separate video sources on a single screen at the same time.
For example, you can watch TV and video simultaneously.

Dolby Digital

This is the digital sound standard developed by the Dolby
Laboratory. You can select your preferred digital surround
mode after connecting external speakers.

Digital Broadcasting

Digital Broadcasting is a television broadcasting signal digitized
and transmitted according to the United States' terrestrial digital
broadcast standard, or ATSC.

Mono

A type of audio interface that transmits the audio signal through
a single channel only.
Through a mono interface, it is hard to experience stereophonic
sound and the sound is played using only one speaker.

Reception Sensitivity Amplification (LNA)

A signal amplification technique that amplifies a weak broad-
casting signal by applying satellite technology to provide better
visual quality even for users in regions where only a weak
broadcasting signal is available. (LNA: Low Noise Amplifier)

Sub Woofer

A Sub Woofer is a speaker for ultra bass sound output only
whose frequency is as low as 150Hz. There are two types: an
active type which includes an amplifier, and a passive type,
which requires an additional amplifier.

Stereo

A type of audio interface that transmits audio signal through 2
channels.
Stereo transmits audio signals for right and left sound so that
you can experience stereophonic sound, and the sound is
played through 2 speakers.

Partial Color Blind Person Mode

Using this function, a user can adjust the red, green or blue
colors according to the preferences of the partially color-blind
person so that he or she can view the clearest possible picture
on the screen.

Analog Broadcasting

Analog Broadcasting is a television broadcasting signal trans-
mitted according to the NTSC standard.

ANTENNA IN Port

The port connecting the TV aerial via a coaxial cable. It is gen-
erally used for watching public broadcast programs.

English Caption

A function that displays English captions or text information
included in the broadcast signal or video tape. You can use this
function for your English studies by watching AFKN or CC
marked video tapes.

Video/Audio Ports

You may experience poor visual and audio quality when watch-
ing a video tape on channel 3 or 4 through the antenna cable.
You can experience better visual and audio quality by connect-
ing the TV and VCR through the Video/Audio ports. The video
port is in yellow, and the audio ports are in white and red.

Wide Screen

Wide Screen refers to a screen that is horizontally longer than
a conventional TV screen.
While the aspect ratio of a normal TV is 4

：

3, that of a wide

screen is 16

：