Question about Panasonic Viera TH-50PX80U Plasma TV

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Panasonic Viera 50PX80U Plasma TV - HadTV on from 7:30am until 10:30pm and 10:40pm the TV just shut off. No blinking lights, no warning. Now it will not turn back on. Any suggestions on what to try before I call for service?

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  • 51 Answers

Here is the Panasonic site it states to unplug power cord, there are a number of Q&As on this site that may help:

http://answers.shop.panasonic.com/answers/9203/product/TH-50PX80U_support/questions.htm?sort=recentq

Posted on Oct 18, 2013

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: panasonic viera hd tv th 50pz80u

We had a Pioneer that did the same thing. We called a Pioneer Service Center. It appears there was a recall on the Power Supply. They fixed it in our home at not charge.

Posted on Jan 07, 2009

  • 302 Answers

SOURCE: I have a Panasonic Panasonic Viera TH-50PX80U

From your description it sounds like your power supply if faulty. You can get parts for this TV at www.interliquidparts.com

Posted on Jun 03, 2011

SuperTech-11
  • 1591 Answers

SOURCE: Panasonic Viera TH-42PZ80U Plasma TV Will

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

Posted on Jun 26, 2011

  • 184 Answers

SOURCE: Panasonic viera Plasma TV model TH-P42X10A The tv

Hello,

The power supply board of the television is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I hope this will help in solving the problem....

Posted on Aug 01, 2011

  • 3 Answers

SOURCE: Panasonic viera will not turn on

Try the following troubleshooting steps.Check power cord and power outlet, possible light switch problem.
Check if you TV savy check the P board if the P board is not good check the fuses on the P board.
If the P board is OK check the A board.
To check these Unplug the TV , Disconect A5 A6 and A7 on the A board and plug the TV in and see if you get a white screen if this is the case your P board should be OK.

Posted on Dec 04, 2011

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