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My RCA Dimensia TV from 1987 started to do this strange thing where the screen will turn off and on by itself while a loud clicking noise would come from the back of the set. This sort of thing has happened before, but it would usually resolve itself in a few minutes. It has been a week.

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From original owners manual
check sleep timer or alarm time functions
electronic protection circuit may have been activated because of a power surge

Posted on Feb 18, 2010

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Posted on Jan 02, 2017

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My 32v434t television.


The TV was making the clicking noise and not turning on because an internal error was being detected.
Now things had got worse , and something had blown inside the TV.
The burning smell and high pitched noise is coming either from Flyback transformer or PSU board. Repair is a delicate matter and must be done by a technician.

Jul 05, 2009 | RCA TruFlat 27F520T 27" TV

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I have owned a Sony Grand Wega for about 3 years now and for the past few months the TV has been making a very loud noise. I thought the noise was the fan but came to find out it was not the fan and was...


Hello,

There is a fan beside the lamp chamber in this TV. There should be 4 fans total, and the one beside the lamp chamber might be making some noise. They are all bearingless fans, so the noise should be relatively low-pitched "whirr" if it is the fan. If the noise is more of a buzzing sound, it could be coming from the lamp driver (ballast) or from the lamp itself. Lamps tend to do strange things toward the end of their life.

If you have never changed the lamp, it is about time. They have a 2.5 -3 year life span with average use.

One thing you can try is to turn the TV on from a cold start, and watch inside the vent areas beside the lamp chamber. If you hear the noise before you see the lamp light up, then it is probably a fan. If it starts as soon as you see the lamp light up, it is the lamp or ballast.

Hope this helps you...

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1 Answer

Loud clicking noise and nothing on screen


Maybe your TV is shutting off the power due to a shorted out backlight bulb.

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maybe defective speaker or audio output ic or shorted capacitor within audio circuit

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replaced flyback transformer

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The flyback transformer are damaged .

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Turns off by itself!!!


The flyback transformer are damaged.

May 18, 2008 | RCA TruFlat 27F520T 27" TV

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