Question about RCA F36450 36" TV

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Unit trys to go on but than shuts off...please HELP!!!

I turn on the tv, hear the clicking sounds it makes,the light on the power button turns on and off....the tv trys to go on a total of three times and then shuts off(never gets to the picture or sound or anything) husband is pretty good with fixing things around the house just need some instruction on how to do it..thankyou in advance

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Re: unit trys to go on but than shuts off...please...

It's one of the protection overload circuits connected to the high voltage power supply. I would take it to a repair shop and let them fix it for $200.00. A TV is no place for a novice. Even if its unplugged, it can seriously hurt you.

Posted on Jul 07, 2007

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Watching tv/w a dvd/vhs player(a seperate machine)the power goes out on the screen.went out with a white flash like usually when i turn it on the bottom where the control buttons are,a red light...

It seems that your unit has some sort of PSU fault, or a problem that is shutting down the Power Supply Unit, PSU. This happens so that no further damage, and possible fire will occur.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done. It is that sound that gives it away, this is a typical switchmode Power Supply problem.

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The buzz is the power supply attempting to power the set. The click is the unit shutting down. Can you pleae post the make and model as well as whether or not the standby light is blinking? With that info we should be able to give you some options.


Nov 03, 2009 | RCA Standard (CRT) Televisions

1 Answer

Sounds like it wants to turn on but shuts off

Sorry but the clicks is the protect circuit saying you got a big problem. Usually, there is a short condition inside. If you have a multimeter you can start around the HV circuit checking for shorted caps or diodes or Transistors, otherwise it's a shop repair...Safety first....residual voltage remains even with power off, so be careful..

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This may denote a proble in either your switching powers supply or your Horizontal section derived high voltage power supply. These are both very dangerous sections in your television. My next question is important; do you have a background in electronics? If not I would not advise you working on this problem yourself and that you take the TV to a repair shop for servicing. If you do have some background in electronics, I would like for you to make the following obeservations: What was the TV doing (it actions)prior to it going out? Did you hear any sounds before it went out like buzzing or crackling? What do you hear when you try to turn it on now, clicking? These questions are just to develop some background into what might be happening to your set. Thank you, Shuttle83

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