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HDTV

HDTV (High-Definition Television) is a new type of television that offers better resolution than a standard analog television. The different types of HDTV displays include plasma, direct-view, front screen and rear screen projection.

3,605 Questions

How do you chose a big screen TV?

Look for the largest TV you can afford. Stay away from plasma and non-LED backlit screens, and choose a brand name with a good reputation and local support. Make sure you can view the TV in person. You might be able to bring along a DVD or Blu-Ray disc to compare the pictures with a movie you know and like.

How many cds can you store on a blu-ray disc?

A Bluray disc can store up to 50GB of data (the maximum storage size is not specified in the standard so data capacity may be higher in some discs.

A CD will store approximately 700MB of data, about seventy minutes of stereo music in CD format.

One Bluray disc should store the contents of at least 70 CDs. Because music CDs are rarely filled to capacity, in practice, it is likely that more than 70 will fit onto a single Bluray disc or about 83 hours of music.

If CDs are converted into MP3 files, the data size can be reduced substantially. Using an MP3 data rate of 128KB, the data size is reduced by a factor of 10 so in excess of 830 hours of music can be stored on a single disc. 800 hours of music will last almost 5 weeks if played continuously and that should be enough for people even with the most varied musical tastes.

How do you play sony tv through sony DVD home theater system dav tz210 i did all the necessary settings written on the manual of both tv and the home theater but there is still no sound?

You can't play the Sony TV's sound through this system, as the TZ210 doesn't have any video or audio inputs. This system can only be used to play DVDs and the radio tuner built into the TZ210.

Are passive TVs or active TVs better?

Both have their own benefits and drawbacks. The most important thing is that you find a television comfortable, easy and realistic to watch. If you enjoy watching 3D on a certain model, the technology used is of little importance.

How do you connect the HDMI digital cable to the surround sound?

If your receiver has an HDMI input, use that. If it doesn't, then you will have to use analog or digital audio connectors to plug it in.

What is the largest flat screen TV to fit an openiong of 42x30?

A 46 inch television with a very small bezel can fit into this space using a wall mount. There will not be enough height in this space for the included table stand.

A warning, the TV will get very HOT. Place a small cooling fan at the inside back of the box, blowing cool air onto the back of the flatscreen. This fan could run 24 hours a day. Heat kills electronics.

How do i connect my tv which is a Digital Audio Out connection to my computer speakers which have a 3.5mm Headphone Jack connection so that my TVs sound will play out of the speakers?

Unless your computer speakers have a digital audio input, you won't be able to just use a cable. If your TV has two RCA line outputs (audio outputs), you can get an adapter cable to run to your computer speakers.

You could upgrade your speakers to models that have a digital input, but most of those are higher-end surround-type systems.

Can digital audio output connect to digital optical audio input?

A coaxial digital output (usually an RCA jack) can connect to a digital optical input using a coaxial to optical digital converter. This is a small box that goes in between the two products.

What is the size of Blu-ray Disc?

If you're talking about length, the Blu-Ray disc is the same exact size of a DVD. But if you're talking about memory size, I think it is 50GB.

I have one HDMI cable in my house. Will it wear out if I continue to switch it between my Xbox 360 and my Dircect TV box?

The long term reliability of connectors can vary from one manufacturer to another but a typical connector durability is rated in the order of 10,000 mating cycles. The durability is a normal quoted parameter in component data sheets so we can rely on it being the result of testing rather than guess work. It is important to be aware that rough handling of the connector can substantially reduce the durability.

If the connector is swapped twice each day, the life of the connector should last for anything up to ten years. It is very likely that the conductors inside the cable will fail due to bending far sooner than the connector itself will wear out.

How do you connect your tv which is digital audio out to a sound bar with rca imput?

If your tv has RCA out, use that. If not, you could use an external digital cable tuner and connect that to your soundbar .

Where are the composite video inputs on Samsung smart tv. It is on the wall and I can't see behind it?

Samsung produce a wide range of models. Other than saying that all connectors are in the same general area behind a television, it is impossible to offer a definitive answer.

There are some things you might try before you remove the television from a wall mount:

Look up the manual that came with the television or find it online..

The input connector will be yellow, normally with a white and red next to it. If you can see the color of the connector, plug in the video (yellow) and audio (red and white) cables and try it.

If you can't see even the color of the connectors, try using a phone's camera. Either use the screen as a live viewfinder or reach behind the television and take pictures until you can work out where the cables go. Take a final picture to confirm that you got the right connectors in the right holes.

What is the difference between Pr Pb Y and Cr Cb Y audio video ports. will my devices work if a connect the two ports together?

They are both color space video but PrPbY is analog video and CrCbY is digital video.

Trivia

Conventionally the Y is first followed by b then r, as in YPbPr which has led to the wires being known as 'yipper' lines/cables.

Where do you plug a rca phono into a 40 inch Samsung D5000 tv?

If you want an audio output from the TV to connect to a home theater receiver or other amplifier, you will have to use the optical digital audio output or Audio Return Channel through the HDMI connectors. Those are the only outputs on this TV.

What are the Blu-ray regions?

Regions are global areas defined by the BluRay consortium. In order the allow the introduction of movies in different countries on different dates, most Bluray movies have a region code embedded in them. Bluray players will only play movies authored for the region in which they are sold. There are movies on the market, however, that are region-free, and can be played on any Bluray player anywhere in the world.

What is a dvi-input?

DVI is a digital video interface used for computer displays. It is an alternative to VGA which is an anlog interface.

DVI is also compatible with HDMI interfaces with one or two limitaitons. DVI does not carry audio so a separate audio lead will be needed. Also. HDMI supports a content protection system called HDCP. Therefore, HDCP protected signals on an HDMI output, as may be found on Bluray discs among others, may well not operate with a DVI input.

Which 3D TV gives better image quality -- LG or Samsung?

This is an argument that continues to battle on and on. Basically, Samsung is active shutter technology and each eye receives a 1080p image at a time. Meanwhile, LG developed a passive technology 3D TV where both eyes receive 540p image at the same time. Samsung does have impeccable quality, though, so make sure to research it all the way. Good luck!

How did television change from the olden days?

Early TV was mechanical, using a spinning disk to scan the image. A 30-line scan was common, but there were few standards.

Modern TV is electronic. A 405, 525, 625 or 800 line standard has been common.

Digital TV uses compression techniques to put more signal into the bandwidth, allowing for higher definition.

What is the need for antennas what are transmitting antennas what are receiving antennas?

Antennas transfer energy from a cable into the airwaves efficiently. Any transmit antenna can also be a receive antenna and viceversa. If you wish to transmit high power from an antenna, usually heat generation or high voltage is a concern that can destroy the antenna. To prevent problems, high power antennas require thicker wires and sometimes insulators to prevent overheating/burning and arcing. Many antennas can simply be made of wire of a simple length and they'll be very efficient. The length of an antenna changes it's efficiency to the cable. If you want the antenna to be efficient, you must size it to match the cable impedance. Usually the length of a single wire exiting above a metal plate is one quarter wavelength or 1/4 x 11,803/frequency in megahertz. For FM radio on an automobile, some antennas have motors that extend out of the body of the car. The height (inches) should be 1/4 x 11,803/100 megahertz or just under 30 inches. TV antennas above a house are most often a set of half wavelength wires, so change the 1/4 to 1/2 in the formula above. They use many different wire lengths to cover all the frequencies in the television band, which extends from about 50 megahertz to around 600 megahertz. Cell phone frequencies were picked partly to make the antennas small and partly so that cell phone reception can enter buildings with rebar reinforcement. Cell phone frequencies are roughly 800 megahertz and 1800 megahertz.

Receiver antennas are often made smaller than either transmit or transceiver antennas. If you open up the back of an older transistor radio, you are likely to find a bar made of ferrite material with an insulator and wire wrapped around that. The wire is wrapped a number of turns to match the impedance required by the circuit. The ferrite bar is able to focus signals to itself which in turn induces a current in the coil.

While impedance is an important issue, simple dipole antennas can be sized by the 468/Frequency in mHz formula. It will give the the length of an antenna in feet. You divide the outcome by 2 to find out what each side length should be. The impedance of an antenna can ofter be adjusted by its shape. The 90 degree V shape yields a near perfect 50 ohms impedance which is commonly used for transmitters and transceivers where as the flat top diode has a higher impedance.

The ARRL has good books on antennas. You might want to go to the library and look at a few of them.

Can RTD Cable and Thermocouple cable shall be laid in a common cable tray?

Yes

You should be careful with power cables nearby and make sure they are shielded

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