answersLogoWhite

0

📱

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

I have a 6 month old JVC 56FN97 that has developed a dark spot across the bottom of the screen that seems as though the screen is delaminated or something can it be fixed?

Figured it out... this may help you, doing it from memory so I may have the number of screws off a bit, but the rest is correct...

It was windex (thanks to my kids). Here's how to fix it (on a JVC HD-56fn97). The key is to get to the windex before it's had a chance to react with the plastic and leave a white haze on it. I did all of this within 6 hours of the "incident" and the screen is fine, there is no trace of a problem - AT ALL.

1. Remove speaker trim from front of TV on the bottom, there's a couple tabs that you can find by feeling around... press them the trim comes right off.

2. Remove the screws holding the speaker enclosure to the bottom of the cabinet (approximately 6-8 screws) and carefully lower the enclosure - the wires for the speakers are kind of short, you might want help so you don't drop the enclosure and damage the wires etc. Unplug the wires connected to the speakers - the right side wires are black and red, the left side are whithe and black. (Don't worry about which goes where, the connectors are different sizes, they only go back on one way.)

3. Take the screws out of the back of the screen trim (approximately 8) - BE CAREFUL not to drop the screen - the plastic trim will break... this is not heavy but it is a little flimsy.

4. Lay the screen trim (with the screen in it) on a large flat surface big enough to support the whole thing. Don't put it on the floor, you want something that is going to be clean, lint free, dirt / grease free, etc.

5. Unscrew the 4 screen retainers on the inside of the trim... there are 2 sliver colored screws at the top and bottom of both the left and rtight sides (total of 8 silver colored screws) and 2-4 black screws in the meddile of each side.

6. Lift out the screens (there are 2 and they are taped together. Carefully cut the tape at the side and bottom, leave the top tape intact.

7. Use a lint free cloth to dry the windex most of the way... the big spots mostly. BE CAREFUL NOT TO WIPE / RUB TOO HARD - the screens have a texture to them that you can't mess up or it'll affect the picture. Get a hair dryer and blow COOL air across the screens to dry the windex all the way.

Get another lint free rag and wet it with clean water, not sopping wet, but a little more than damp. Use the wet rag to wipe the entire screen down, in the pattern following the texture (one is random, one is circular). Make sure to get the windexed parts good. Use the hair dryer to dry it them completely.

You need to be careful to get all finger prints off the insides of the screens - (oils on your fingers will leave finger prints... I used a third lint free rag to hold the screens with to avoid getting finger prints, etc on them). You also need to make sure you get all the dust , lint, etc off the insides of the screens, when you put them back together they'll be trapped in the screens and highly visible.

Put the screens back together and re-tape the sides so that they stay straight, tec. I used the skinny scotch tape. Wipe down the side of the screen that will face the back of the tv so you won't have any finger prints, dust, etc on the inside surface. (Note - the silver side goes in the TV, the dark side goes out.) Be careful not to touch the mirror inside or antyhing else, you may even want to blow the hair dryer in there and get out any dust, etc that is in there before you put everything back together.

8. Re-assemble the tv the opposite of taking it apart. Be careful that you put the screen retainers from step 5 back in the right order of the screw hole won't line up right. The side go in first then the top and bottom.

You should probably have someone help you with this, a second set of hands isn't required, but makes removing / installing the screen, etc much easier.

This whole process took me 5 hours, but I was going VERY slow so as not to break anything, and about half of that time was spent just figuring out how to take the screen off.

You could possibly put a small bead of silicon caulk along the edges of the screen (on the retainers in step 5) to prevent this from happening again ( a VERY SMALL bead of caulk) but I don't know if that will affect the screen or make it harder to remove the screen in the off chance that you have to do this again.

Good luck.

In standard AM broadcast what mode of propagation is used for transmitting a signal?

AM broadcasting uses vertically polarised waves which propagate via the ground-wave, along the ground.

The rate at which the signal decreases with distance depends mainly on the electrical conductivity of the ground. Lower frequencies decay at a lower rate and travel further than higher frequencies.

Ground waves propagate to large distances over sea-water which is highly conductive, for example about 40 miles at 27 MHz and further at lower frequencies. Over typical grassland the range of a 2 kW AM transmitter is 20-30 miles on medium-wave frequencies around 1 MHz.

Which HD Channel is Disney on for comcast?

The HD channel for Disney Channel on comcast is 244

What is PDP HD TV?

Plasma display panel, high definition, television.

When will non-HDTVs stop receiving signals and become obsolete?

As an act of Congress, the analog broadcast cut off date is February 17, 2009. Of course, as they have done in the past, that could be changed, but since this is the second "official act" it'll most likely happen as scheduled.

If you currently have an analog TV with a cable box or a satellite box, you most likely won't have to worry since they still have analog outputs on them, so your TV should continue to work.

Besides, satellite TV (the same sources for the cable company's programming) is by and far for the most part, already completely digital. There may be one or two programmers that haven't transitioned yet, but when they do, you'll probably not even be aware of when it happens.

My advice to you by the way, is if you have an analog TV that's working OK and the picture's good, hold off as long as possible before buying a new HDTV or a digital TV if you can. The product they're putting out these days, in my opinion, aren't nearly as reliable as your current analog TV. That's why I'm hanging onto mine as long as possible. Mainly in hopes they figure out that people won't keep buying stuff that keeps breaking down, and strengthens their designs. Additional comment: Non-DTVs are only obsolete in that aren't manufactured anymore. Except for some tiny TVs that don't have a way to connect an exernal antenna, any analog TV can receive DTV & HDTV signals. If you get you TV with an antenna, you will need to buy a cheap converter box. Cable & satilite companies generally take care of the conversion for you. The TV system is changing to DTV (digital TV), there is no mandate that all digital signals be in "HD" resolution.

Which is better ycbcr or s video connection?

YCbCr is more commonly known as component video and uses three signals. The first carries "luma" or brightness information. The other two carry color information as difference signals. The format carries full image information.

S-video uses two signals. The luma signal is the same as component but the color information is encoded from two separate signals into one. The result is that color information is lost and therefore S-video is inferior to component. The difference is quality is not great so S-video delivers a perfectly acceptable image and is also significantly improved against composite signals.

Is sf gaints game showing on antenna tv today?

To determine if the San Francisco Giants game is showing on antenna TV today, you would need to check your local listings or the schedule for over-the-air broadcasts in your area. Games may be aired on local networks or sports channels that are available via antenna. You can also visit the Giants' official website or check sports broadcasting apps for the latest information.

How do you connect a SPDIF audio output to a left and right analog audio impute?

SPDIF is a digital audio protocol developed by Sony and Philips. In order to connect the signal to an anologue input, a digital to analogue converter is required. If the source also has analogue outputs, it is much easier to use them - the digital to analogue converter is built into the source and saves the need for an external one. It might be argued that a good quality external converter can produce a better quality analogue signal than an integrated converter in a DVD player for example. A listening test will help to decide if that is the case.

Do you need a stronger signal for digital TV or for analog TV?

There are two answers to the question - Digital or analog. Here is the reason why:

Digital signal are very robust signals as long as they do not fall below a certain strength and quality. As long as the signal is above that threshold, a receiver should be able to interpret the data correctly. That means a full quality image even though the signal may only just be above the strength and quality threshold.

Analog signals need a higher signal strength and quality to achieve full quality images at the receiver. As the signal strength and quality reduce, more noise and other distortion can be detected in the image. Despite this, a signal strength and quality far lower than an equivalent digital signal will still be received. The image may be degraded to the point where noise is intrusive, but the content can still be seen.

Broadcasters take into account the differing requirements of digital television and will make efforts to ensure that the signals received are of sufficient quality to provide reliable programs.

It is perhaps worth pointing out that signal strength and signal quality are two separate measurements. Quality is just as important as strength so signal strength alone will not guarantee good reception in all cases.

How can convert high VGA resolution into low VGA resolution Can use any electronic converter or device please tell?

Devices called scalars or interpolators are made to convert images in this way. They can convert from PC signals to broadcast standard, PC to PC, broadcast to PC or even between broadcast standards. They all work by looking at the incoming image and then estimating the value of every pixel on the redrawn image. Because they change the muber of pixels across the screen in both planes, new pixels are drawn in places where there wasn't a pixel in the incoming image. Because of this method, they will all make the image a little softer than the original. In some cases, they can cause quite unpleasant effects around text and hard lines on the image. Although it is possible to obtain low cost scalars, they may not provide the quality needed. (some of the more expensive broadcast converters have price tags of $200,000 to get the best quality possible). Alternatively, it may be possible to set up the output of the PC to the resolution required. This will always give a better image quality than converting because the graphics are generated to suit the resolution of the display.

What is a digital audio Jack?

A digital audio jack serves the same purpose as an analog audio jack, only it transmits a signal that is digital (1s and 0s) instead of analog (waveform).

Why does your lcd tv have a line in the picture that wont go away?

That would depend on the line. If it's a line of pixels that have gone out you need to have your TV serviced. If it is a line that scrolls slowly up the screen then it could be a "Ground Loop" which is caused by a grounding issue either in your home or with your cable feed coming into the house. Many grounding issues in the home resulting in the line can be fixed by you. If you don't have all of the components hooked to the TV plugged into a line conditioner (Surge protector) that could be the issue. Visit your local Circuit City and ask the Home Theater guy or gal to show you a Monster Line Conditioner and explain it's benefits. This is the best I can do with the limited info in your question.

Can the plasma screen on a 50 inch Panasonic high definition plasma television be replaced if broken?

Yes, but the price of replacing the panel would cost more than buying a new one if and only if it is not under any warranty.

If you hit a tv screen and there is no visible damage is it okay?

That really depends on the type of TV it is, but if you can'e see any phicical damage, it's probably OK. Best thing to do is turn it on. If it works, then you're OK. If not? Probably time to call a repair service.

What kinds of HD TVs are 1080p?

There are many different HD TV's available with 1080p. Some of the top rated HD TV's with these specification are made by Samsung or the Sony company.

How can you connect your PC to your magnavox 37MF231D HDTV lcd and watch tv?

Although you can connect TV to PC via DVI to HDMI cable, the picture quality is not guaranteed. This is not recommended by manufacturer.

Why won't a 1080P TV receive a 1080P signal?

Broadcast television currently does not use 1080p. The HD formats in use at present are 720p and 1080i. The "i" stands for interlaced and it means that on a single pass of the screen half of the image is built up. The second pass sees the remainder of the image added to the first half. A full image is delivered 25 or 30 times each second. A 1080p signal delivers a full image on every pass, 50 or 60 times each second. 1080p therefore needs double the amount of data compared to 1080i. Broadcast infrastructure and the extra bandwidth requirements prevent 1080p being broadcast. 1080p is limited at present to Bluray and other local HD sources such as computers and game consoles. Don't expect to see 1080p from your television service provider any time soon. The 1080p identification on the television says that it will display 1080p but of course can only do this with a 1080p incoming signal.

No picture or sound just flashing standby light on your sony kv27v65 tv Can this be repaired?

I just had this same issue and was able to get the tv repaired...by a guy who has lots of tv repair experience. He said it is the sort of thing any tv guy could do...worth a call to your local tv repair store.

Is a slit in a flat screen TV harmful?

If you meant "split" in a flat screen, then that depends on your TV.