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Re: TV cuts off
I would look at either the on/off button faulty or a heat sink not doing it's job.
Either way, the solution is quite simple. The on/off button simply toggles a low voltage circuit that powers your tv. If it is dusty, it may complete the electrical circuit and send a false signal. A heat sink may be dusty and unable to dissipate heat. Overtemp protection may be switching the TV off.
I would take a can of compressed air, open the back and clean the dust off the circuit boards.
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Blue screen means either no signal (if unit has rear connections hook a DVD etc to one and go to that input and see if it works) Or the blue may mean set is in shutdown----5 months old and it should still have a warranty?
Every time you turn on a color TV, a degaussing circuit tries to neutralize magnetic fields on the picture tube face that can cause distorted colors. That degaussing circuit isn't strong enough to clear up the field left by direct contact with a magnet. You need an external degaussing ring to clear up the funny colors. You can see what one looks like here. You might be able to find one for sale on eBay or borrow one from someone in the TV service business. Or you can take the TV to a shop where they can degauss it for you for a small charge. Just be aware there's a chance the picture tube may have been damaged if the magnet was very strong and was in contact with the tube for any length of time. A thin metal screen called the shadow mask is behind the tube face, and if that was warped by the magnet then the colors will never line up correctly again. If this has happened, even after degaussing the colors will still be wrong. But you won't know until you try. Good luck, and thanks for using Fixya!
This is a common problem with Broksonic LCD televisions. (If you want to look them up you can search by their manufacturer Orion.) The problem lays within the power supply and a uneven voltage processor. This happens for no reason sometimes, but what acutaly happens is that a chip controls the amount of voltage coming into the tube. This chip has malfunctioned and works for about 15-20 seconds before resetting. This needs to be replaced. It can be costly. I'll leave you with some links that may help you in your voyage into Television Repair Land. Good Luck!!
Broksonic Manual(s) - Includes Troubleshooting Section
LCD TV Repair Specialists - Near you!
LCD TV Parts - Google Suggested!
I hope this solution helps you!
Guide - Vexed Demon
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I gotta love it when people make up answers. There is no such thing as a "contrass module". I'm assuming the poster meant "contrast". The trouble is your 12-year-old picture tube. It's gotten weak and isn't getting as bright or sharp as it used to. Picture tube manufacturers estimate the useful life of a tube at about 7 years today. There are adjustments inside that might help some, but you need a new picture tube. It's going to cost a lot more than $60 to $75 for that. You're better off replacing the TV.
Three guns Red Blue and Green in the picture tube of an old CRT set. If one of the guns goes out it effects that color. Sounds like one of the guns inside of the tube is going out, To costly to replace for such an old antilog set that will have to have a convertor box next month anyway.
remove the front speaker assembly and the small access panel behind it and you will see a small square control assembly with 6 dials on it 3 control the color guns and 3 control the 3 gun focus. Try turning down the red control slightly they will be set up just like the CRTs red green and blue.
Assuming this is a TV with a picture tube and not plasma or LCD; I'm
afraid that your picture tube is dying on you one electron gun at a
time. From what you said your green electron gun is almost totally dead
and the two remaining blue & green guns aren't far behind.
Eventually you'll have no picture at all and I would estimate that to
be about 6 more months but whatever the time eventually it will go
totally black. These blackout periods will get longer and longer. The
only way to fix your problem is a new picture tube but my will probably
find it less expensive to just get a brand new TV set.
When the colors are off around the edges on a regular picture tube TV, it usually means that the degaussing thermistor's solder joints have cracked loose. Another possible cause is that a strong magnet, such as in a stereo speaker, was brought very close to the picture tube and has magnetized the tube. Resoldering the solder joints on the degaussing thermistor and demagnetizing the picture tube should put the color back to normal.