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Posted on Jan 02, 2017
This sounds like you are experiencing the same thing as thousands of other tv owners right now.
Your tv is suffering from " capacitor flu".
The capacitors that control voltage regulation, convergence, or the ones on the main board have failed.
This is not due to anything that you have done, it is because about 15 years ago, some companies chose to put profit ahead of quality.
There were about 20 electronic component manufacturers in the mid-1990's that mass manufactured capacitors, and they were done so with the wrong formula for capacitance gel. They used a formula which was later determined to be harmful to the capacitors, but instead of pulling those off of the market, they ignored the massive failures and left then out there on the market anyways.
All together, the companies made a combined 50,000,000 capacitors that were junk, and instead of lasting the 25-30 year design like they were supposed to, some of them are only lasting a few months to a few years, at best.
Now, that isn't to say that this means that your tv should be tossed in the trash, but if you take it to get it repaired at places like BestBuy, Fry's, or Staple's...you will want to get an estimate of repair costs before actually having it done.
The reason for this is because to get the proper capacitors put in your tv is a time consuming, and expensive repair.
You may find that the cost of repair is more expensive than the cost of replacing the tv, or you may find that it reasonably priced to get the repair.
That is why I recommend getting an estimate first.
This way, you will know ahead of time which way is the most economically feasible venture for you.
I hope this helps you understand what is going on with your tv, and that it gives you some insight as to how to remedy the situation.
Good luck to you, and have a good day.
Posted on May 31, 2011
You can look at the various module failure symptoms and service / replacement options for the L42HDTV10A here:
Posted on Apr 25, 2013
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