Question about Vizio 42 in. LCD TV

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Tv is 3 1/2 years old, worked fine this morning, then it started making a funny humming sound and the left side of the tv went dim. Could it be a bulb?

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It could be the invertor that runs the maize of lamps on the left side.
If there are spares it shouldn't be too costly.
Hope that helps.

Posted on Jan 02, 2011

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Posted on Jan 02, 2017

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PROTRON 26 TWO YEARS OLD


Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to jah2mil@hotmail.com

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The horizontal output transistor drives a transformer that gives you the high voltage to light up the picture tube,either the transistor or the transformer have gone bad,sometimes both have to be replaced and sometimes the transistor fails for no reason by itself.Be safe and call for help if you are not familiar with tv service.

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