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Hi i bought LG plasma model no RT-42PX11 2 years

Hi i bought LG plasma model no RT-42PX11 2 years ago just last night turned it on, No picture but has sound just wounderin what might be the problem thanks

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G'Day!

Unfortunately, what you're describing is a repair issue. You won't be able to address the problem with troubleshooting. There is a part inside the TV that needs to be replaced. If you're under warranty, this will cost you nothing. If you're not under warranty the cost will likely be a minimum of $200 parts and labor. However, be warned that the cost could be considerably higher.


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Please post a comment if you need additional assistance so that I can help you further.

Posted on Aug 02, 2009

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As infuriating as it is to see an expensive appliance bite the dust a week or so after warranty, we all forget the the law is on our side. Any appliance that costs a reasonable amount of money should be expected to last longer than 12 months. My $2500 LG Plasma died 2 months after the warranty expired, and of course LG didn`t want to know about it. One call to LG from consumer protection to remind them that a $2500 TV should last at least 4-5 years, resulted in my Plasma being repaired free of charge. I could tell that they wern`t happy about it, but they knew I was in the right. TRUE STORY!

Posted on Jun 06, 2011

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Hi, i have an LG plasma, model number RT-42PX11.


You need to pull the power supply out and replace the damaged caps on the board. Look for swollen, pushed up tops and leakage around the base of the caps.

You need soldering and basic electronics skills. You also need to pull apart that big tv and pull the power supply board!

You can look on Ebay for pullout boards from people who have broken their screens. It can get you a working board for cheap sometimes!

Good luck and be careful!

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