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The most common failure mode of the CRT in a TV is the picture going progressively darker and darker. In general, if the TV wouldn't display anything at all suddenly, there can be more at work than just the tube suddenly going bad - I'd even go as far as to say that in most cases of unexpected, abrupt failures, the tube isn't to blame (the flyback transformer is a much more likely suspect).
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When did they quit putting picture tubes in tv?
They didn't many TV's still have picture tubes in them in 2008
What are Lanthanoid elements are used to make?
They are used to make magnets, ceramics, and television picture tubes.
What is wrong with my rear projection TV the picture is green?
Have you tried adjusting the settings on your tv like the contrast/tint/etc.? It might be a bad picture tube in which case you may need to get a new tv but without more details it's hard to know for sure what's going on.
Flat panel televisions replaced what type of common tv set?
Flat panel televisions have been very popular for the past several years. Flat panel televisions replaced televisions with picture tubes called cathode ray tubes.
How much does a picture tube cost or a 65'' Mitsubishi big screen television?
The old school box projection tv need three picture tubes ranging around $200 a piece. Cheaper to buy a new tv.
Does sharp tv have picture in picture?
the shapr does not offer PIP feature. i know right!
Is the picture a good picture on the sharp tv?
Go into the video MENU and set the SHARPNESS control to MAX. for a sharper picture.
Why would it take hours for an analog television to display a picture after it is switched on?
If it is a very old TV, more than likely it contains vacuum tubes that have gone bad. Vacuum tubes work by deflecting electrons inside a glass tube. This requires the tubes to be heated, with a small internal heater. The tubes have to warm up for them to work. This process should only take a minute or two. If it is taking hours the heaters are bad, or they arn't getting enough power to warm the tubes properly.
When did they stop making console televisions?
Console TV's were big boxes that held the large picture tube and the smaller tubes and wires behind it that made it work. As tubes were replaced by transistors and then circuit boards they needed less space, so the TVs were made smaller. Short answer--because they're not needed any more.
How are television tubes discharged safely?
Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT after removing the anode.
Old 62 inch Panasonic tv the picture is all messed up and someone said you have to put some liquid substance into the different color containers in the tv is this true?
Some older video projectors used cathode ray tubes with fliud cooling to prevent the phosphors inside the tubes burning. Refilling the fluid is a specialist job and sholdn't be undertaken without the right tools and expertise. It also sounds like it miht be too late anyway. If the tubes are burnt, you will notice dark marks or ghost iamges on the picture. If that is the case, refilling the clloing fluid will not make the marks go away. The only solution to burnt tubes is to replace them and the cost will be higher than the price of a new plasma or LCD screen.
How do you know if the TV tube is going?
Dim picture, slow to get bright and the white part of the picture turns kind of negative looking.
