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Tv suddenly died, black screen with high pitched whistle

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Ur high voltage is dead,it the FBT,the flyback transformer,the big black block of plastic with a red wire with a cap go to the CRT(tv tube).It have a paper
clip like '5 steel to the block high voltage go throught
that where the high pitch came from.

Posted on Sep 30, 2009

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I have a RCA projection TV. The picture and sound are fine. After the TV is on for a bit it starts a highe pitch whistle. The picture and sound continue to be fine. What is the problem and what can I do to...


Most likely the color wheel is starting to go bad adn when they do they get a high pitched whine sound coming from the bearrings on the wheel. Might want to look at getting a replacement before it quits. When they die you can't watch your tv till it is repaired.
thanks

Jul 22, 2011 | Televison & Video

1 Answer

When i turn on the tv, it makes a high pitched sound every couple seconds coming from the back of the tv, (not the speakers) and the screen is black.


hi there !
what You'd just heard was the flyback singing or the High frequency whistle at the high voltage section of your tv set it is located inside, Replacement of defective component will do solve your problem, thank you

Dec 25, 2010 | RCA 20F512T 20" TV

1 Answer

No pix/sound, just high pitched whistle


Ur tv the high voltage it dead,the FBT,the flyback transformer.The big black block of plastic with a red wire with a black cap that hook up to the CRT(tv tube) is dead.The FBT,flyback transformer needed it to be replaced to solved this problems.Call the shops,take estimates for the best deal to do the repair.This is one of the main part of the tv to put HV in CRT(tube tv).It pretty hard to find this FBT these day,because of the discontinue of making of Amalog tvs.

Jun 06, 2010 | RCA 35V432T 35" TV

1 Answer

High pitched whistling


Try changing refresh frequency, color depth or resolution (wait for the whistle to appear before testing). Admittedly, you might have to give up some image quality - less colors, or less resolution. There is probably a problem in the TV syncing mechanism - if you can, try getting it replaced. "High pitched whistles" in video and TV hardware are usually harbingers of bad news.

Aug 24, 2009 | Samsung SyncMaster 245T 24 inch LCD...

1 Answer

Super high pitch whistle from tv, only powering it off helps.


Shut it off and unplug. You have a serious HIGH VOLTAGE problem that could cause a fire. Professional repair needed.

Mar 07, 2009 | Sony FD Trinitron WEGA KV-36FS120 36" TV

3 Answers

TV screen wont turn on but just a loud noise coming from the tv


I think maybe the G-board needs to be replaced. A TV shop will have to repair it. They normally start around $200.00

Jul 02, 2007 | Panasonic CT-32G23 32" TV

2 Answers

Continuous low whistling or thin buzzing noise


The high pitched sound is an indication that theres a short most likly in the Hi voltage sweep section or power supply and with out the proper training you should not even take off the back as there are no user replaceable parts inside of these sets. All the parts are soldered in and you can not look at them and see that they are bad.. its almost like when your check engine light comes on you look but what do you see without a computer to read the on board computer vto see what the problem(s) are. Take the set into or call a pro to assist you with this repair. good luck

Jul 25, 2006 | Panasonic CT-27G33 27" TV

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