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I have an olevia 42inch lcd and it power off and would not turn on again, any solution?

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Most TVs have " Protection Mode ". When the TV detects a bad circuit board, it automatically turns itself OFF. That way it can protect the other components from being damaged. Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The most common problem are the power supply for the screen itself. Most manufactures call it a Blacklight Inverter Board. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.
You have a few choices:

1. You can try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.

3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.

4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.


I hope I shed some light on the subject for you.

Posted on Jul 18, 2009

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I will show some pics that I borrowed during my repair, hope it helps as reference as it did to me.

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I replaced the bad caps with new ones that I bought at a computer parts store.

Now I got my lcd tv back ON but this time I added a internal cooling fan for better air flow that will reduce this malfunction from happening again.

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