Question about Protron PLTV-37 37 in. LCD Television

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Proton 34 LCD tv

I tried to turn on the TV the other day and I heard a buzz then on power.Itried the rest switcth on the back but still no power.I did not smell any burnt wiring.

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  • frebrd7174 Jul 08, 2008

    when I turn on TV it makes a very loud noise like a fog horn sometimes. It does this 3-4 times then stops. It will also do this after the TV has been on awhile. Can you help? Don't know what to try to stop this. Is there a reset switch?

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  • 5 Answers

Looks like Power Supply fuse is gone. Replace with recommended rating and type of fuse and try again.

Posted on Jun 10, 2008

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Try another input and another source such as a DVD player. If you still get the buzzing sound, you could have a faulty power supply output or a fault in the audio circuit of the main board.

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I have a proscan 42LA45H 42 in television that has started making a buzzing noise from the back. What is causing this, and what do I need to do to fix.


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If picture and sound is Ok, and only this buzzing sound is heard from the back of the TV, It should be due to core soose of some ferrite cored transformers inside, especially to the power supply regulator board of the TV. Open the back cover of the TV and swtich it ON. Listeen very carefully which transfromer makes the buzzing noise. Just trouch and press the core of the transformer suspected with some non-cunductive material like glass rod, or a stick of dry wood. You can identify the transformer that makes noise by this way. After identifying the exact transformer; switch OFF the set, unplug it from mains socket, apply some "Super Glue" like fast boanding glue to the joint of core of that transformer. Allow sometime for the glue to set. This will solve the buzzing sound problem of your TV. OK

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1 Answer

Had my toshiba regza 42rv530u since March 2009 a few days ago it cut off and will not come back on, the yellow light flashes at the bottom of the tv, 3 blinks pause 3 blinks etc....


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My 32" Philips LCD TV makes a annoying buzzing


The main cause off buzzing from these sets is the transformers on the psu. This can be solved by sealing the transformers with a sealant spray.

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3 Answers

Samsung P237HD tv/monitor,unit buzzing when on.


I would take it back unless you have time to investigate the problem before the return policy expires.

If the sound is coming from the speakers then it is interference and would likely happen with another TV.

The interference type can be electromagnetic or radio frequency, both of which can be defeated.
Start with plugging it into a different outlet. If that doesn't work, then unplug anything from it one device at a time to see which thing is the culprit. If it is one of the devices, move any audio cords away from power cords and/or position the device further from the television.
Household appliances and fluorescent lighting also can cause signal interference in electronics that is audible.
A device known to help with such interference are power line conditioners from such brands as Tripp lite, and ferrite clamps. You can place ferrite clamps on the power cords of your devices and their analog audio connectors.

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I have the same problem. I am told that I need a new power supply (adaptor) but from what I am reading on the Net, they are very rare and TV repairman told me he cannot find the part. I heard that Protron is out of business.

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Brand new LC 42D65U


Sounds like your powerboard, take it back or call tech for replacement, dont settle for this, you paid good money for a working tv

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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.
NOTE: I REALLY HATE DOING THIS TO THE STORES, BUT IF YOU PAY FOR SOMETHING IT SHOULD LAST LONGER THAN 30-40 DAYS. PROBLEM SOLVED! :)

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1 Answer

Speakers maybe...


Re: Protron LCD tv - READ THIS #631 I work for Protron.

We are in a big dispute with the Chinese factory that makes Protron LCDs. No replacement parts will be coming, ever.

There are no remotes and no power supplies available.

PROTON has already won their lawsuit which prevents us from selling under the name PROTRON. As soon as they pay the bond, we are shut down.

Our management is in chaos. Our customer service dept is non-existant. Our rating with the BBB is 'F'. The product is cheap because it is made with cheap parts. Getting the picture here?

If you buy a Protron LCD, you are completely on your own.

Good luck.

Oct 21, 2007 | Protron PLTV-26 26 in. HD-Ready LCD...

2 Answers

Protron PLTV-32CM LCD no picture


This TV set is still under the warranty and it seems proton has no local service available to you. I know its to late to tell you this but anytime you purchase a set, ask first and see if there is a service local to you. Ok enough of that noise.. I would go back to the store where it was purchaced and ask them if they know of any local shops that handle the warranty repairs.. If you want to pay for the repair, and that will most likly be alot for a flat panel set, You will have to call back proton and ask about the shipping cost and whos responsible for that.

Sep 30, 2006 | Protron PLTV-32 Television

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