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Had power surge. Tv was on surge protector. Now no power will come on and just makes a buzzing sound.

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There is a short in the main supply inside your TV.
The short is causing the switching power supply to switch on and off faster and harder, trying to work. That is why it makes the ' buzzing ' sound.
The surge protector did work, but the damage was done in the 3 to 7 milliseconds that it took the surge protector to limit the voltage and current. Everything takes time to work. When you turn on the light switch in your room, it takes a certain amount of time for the electricity to get from the switch to the light bulb. When you are driving and you step on the brake, the car does not stop immediately.

Posted on Jan 09, 2015

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Have you tried plugging it in without the surge protector? I would wager that either a) the surge protector needs to be reset/turned on and off depending on the model or b) either your TV and/or surge protector have been damaged by the power surge.

Try plugging the TV straight into the outlet and see if that helps.

Posted on Oct 26, 2012

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PEOPLE, YOU NEED TO GO BACK TO THE STORE, BUY THE SAME TV AGAIN, SWAP THE TV'S AT HOME AND RETURN THE "OLD" TV IN THE "NEW" BOX WITH THE NEW RECEIPT. IN THE CASE OF TOO MANY RETURNS, HAVE A FRIEND, MOM, DAD, SISTER, GIRLFRIEND TO BUY ONE FOR YOU AND DO THE SWAP LATER.
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budmrtn
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SOURCE: power surge hit my surge protector with my 'sony tv hooked to it.

Well, the power supply may be still damaged by the surge, what may happen is that when first surge happens the surge protector protect your TV by sacrifing itself but then the second surge comes along, since the protector already blown up then the surge will just come right through to the TV on the second surge. That is bad problem for the surge protector that sacrify itself but can only do it for ONE time.

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SOURCE: My TV will not power on at all today. It was

it has (2) 8 amp 250 volt ceramic fuses, slow burn, 5mm x 20mm that needs to be replaced. they cost about $1.00 - $3.00 each. Just take off the back cover (make notes of where the 4 different types of screws go!!!) and look just above where the plug goes into the tv. A set of needlenose pliers will easily remove the fuses.

Posted on Dec 03, 2009

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I suggest you unplug the set for about 15 minutes and then plug it in and try again. Sounds like you may have had a power surge/bump in the middle of the night. Althoguh you are using a surge protector, doesn'r mean the devise hooked to it can't lock up during a power surge.( Surge Protectors are an insurance policy only, not a garrentee ). If unplugging the set and waiting doesn't fix it, it will need to have the power supply section of the board repaired. Good Luck
Ed
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