|Do you have multiple input devices hooked up to your TV?|
If you need to select a specific input component connected to your TV or HDTV you usually accomplish this using your remote control for the TV.
You may want to select the device connected to the HDMI input or the inputs your DVD player are connected to. By pushing the Input Select button, you go one by one thru each set of input jacks and you should see on your TV screen what each source device is outputting. If you play your DVD player, push the select button on your remote again and again to change inputs and eventually you should see the DVD player's output.
Every TV manufacturer will have different names for the same thing. One TV maker will label their inputs as DVD, VHS, while another will call them VIDEO 1 and VIDEO 2. Other designations are LINE 1 and LINE 2 or AUX 1, AUX 2, AUX 3 or L1, L2, L3. Some may even mix names like L1, L2, L3 and DV. The key point to remember is that by using your remote control you can cycle (or toggle) thru all your inputs until you find the one you want. The button on your remote control will be labeled differently as well. One may call it "input select" while another will label the button as VIDEO. Read your owner's manual. The TV itself will usually have a button to accomplish the same thing as the remote.
REMOTE CONTROL "Input Select" button
Modern HDTVs like Sony's BRAVIA series, use an on-screen graphical interface which you control with the remote to select functions such as channels, video settings, audio settings and other options. Sony calls their on-screen interface the XMB or cross-media-bar and you navigate up, down and across to select functions.
Selecting from multiple connections. TV today can have multiple source devices all connected to them such as DVD recorder, VCR, Cable Box etc. but they all are connected to the TV input jacks. A modern HDTV today can easily have seven or more inputs.
High Definition TV - HDTV
HDTV hookup using HDMI cable.
HDTV hookup using component video cable and audio cables.
The HDMI connection keeps everything all digital while the component video and audio connections are analog.
|The most common cable hookup is a set of three
cables with RCA-type connectors (also called phono plugs) that are
colored red, white, and yellow. They plug into corresponding red,
white and yellow RCA connections on your TV, VCR, cable box or other
gear. The red and white cables carry stereo audio, while the yellow
cable—the composite video cable—carries video.
video: Since it separates the video from the audio, a composite
video signal looks slightly better than an RF one, but it still
carries the video signal's chrominance (color) and luminance
(black-and-white) information together into one cable and makes your
TV separate them. Not capable of carrying HDTV.
Composite video and 2-channel audio
|S-video: a four-pin connection, the
S-video cable provides improved picture quality by separating the
video signal's chrominance (C, color) and luminance (Y,
black-and-white) information into two parts that travel over one
wire. This connection is sometimes labeled Y/C instead of S-video.
Not capable of carrying HDTV.
video splits the video signal even further into three parts,
carrying each part on its own cable. To explain exactly what parts
of the signal are carried on each cable gets a bit technical; just
know that the end result is a picture that can look much better than
that of S-video or composite video. Your TV's component video inputs
will consist of three RCA connections that are both colored and
labeled: green (Y), blue (Pb or Cb), and red (Pr or Cr). Component
video is often the highest-quality analog connection, and you should
use it if your TV has a component video input. Component video is
the only analog video-cable connection that can handle HDTV or
progressive-scan DVD signals. S-video and composite video don’t
carry progressive scan.
- Y is the luminance (brightness) signal.
- Pb and Pr each carry part of the picture’s chrominance (color)
information. Your TV uses these two chrominance signals to create
the red, green and blue colors that can be mixed together to
create any color on your display. (Sometimes, Pb is labeled B-Y
and Pr is labeled R-Y.)
Component video connections use three normal analog cables. If
you’re routing all of your video cables through a home theater
receiver, check your receiver’s specs before routing component video
connections through it. The receiver’s component video bandwidth
specification should be
- At least 10 MHz for progressive-scan DVD players
- At least 30 MHz for HDTV connections
Component video may be the only connection that allows a true
HDTV signal in your system if some, but not all, of your HDTV
components use the HDCP copy-protection
connection comes in two forms: 6-pin and 4-pin (also known as
iLink). FireWire can carry both video and audio signals, plus
control information, in a compressed form that allows you to record
the signal. TV manufacturers like Mitsubishi use FireWire to chain
multiple devices together so that they can communicate with each
other using fewer connections.
FireWire is also
commonly used in the home entertainment realm to view and transfer
digital video/audio from a camcorder and as an audio-only connection
to transfer digital audio—including high-resolution audio—between
devices. FireWire is the only two-way connection for HDTV - the same
cable can send HDTV video (and audio) to and from devices. This
two-way connection is great for HDTV recording systems. One cable
fully connects an HDTV with a D-VHS VCR. FireWire isn’t part of the
HDCP copy-protection system. Instead, FireWire uses its own
copy-protection scheme called “5C-DTCP” (or 5-company digital
television content protection), which provides similar protection of
content that the big TV companies don’t want you to record for
yourself. The 5C system basically acts just like HDCP, letting only
authorized (5C-equipped) equipment make recordings of “flagged”
|DVI - Digital Video
Many of today’s cable TV and
satellite set top boxes feature the relatively new DVI or HDMI
outputs. For video,
connect DVI or HDMI as you would component connections - they’re
both meant to carry digital HDTV signals.
HDMI is a fully
digital, multi-channel audio and High Definition video carrier. When it’s fully implemented,
the HDMI output on your cable TV/satellite box will go into your
home theater receiver and out again into your TV.
DVI stands for
digital visual interface. There are three types of DVI connections:
DVI-D carries digital video, DVI-A carries the DVI signal to an
analog display (like a CRT computer monitor), and DVI-I carries both
analog and digital on the same connector.
DVI-D is the
one most commonly found on current digital TVs, and it lets you send
a pure, uncompressed digital video signal from a source to your TV.
It's a video-only connection that's a popular choice for sending
HDTV signals from an HD source (like a cable box) to your HDTV,
although longer cable runs (over 20 feet) can degrade the signal.
DVI is also on DVD players so you can send a pure digital source
from the player to a digital TV.
High Definition Multimedia Interface can carry both high-definition
video and high-resolution, multi-channel digital audio over one
cable. Like FireWire, it can also carry control information. With
the purchase of a simple adapter, you can connect a DVI-equipped
source to an HDMI-equipped TV or vice versa, as long as the DVI
connection has HDCP copy protection. HDMI can also travel over
longer cable runs than DVI with less signal degradation.
DVI HDMI adapter cable
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