Question about Panasonic Viera TH-50PZ80U Plasma TV

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Panasonic Viera TH-50PZ80U no back light

Picture and sound are working screen is almost black like backlight is out. fuses checked out good no blinking light.

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  • Panasonic Master
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There is no backlight CCFL lamps to Plasma displays, like LCD ones. If there is no screen with plasmas, the Z-Sustain board should be checked and replaced. This is actually a skilled work, and not a user repairable one, if the user is not experienced to work with plasma displays. Check this link and see whether you can do it by yourself. The link have enough details about the faults to Panasonic brand TVs.

Posted on Jan 17, 2013

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Posted on Jan 02, 2017

  • 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

  • 1 Answer

SOURCE: Panasonic Viera TH-50PZ80U No sound no audio only buzz.

Found the screen had a small crack and was shorting the video circuit.

Posted on Jan 09, 2009

tvservice306
  • 458 Answers

SOURCE: Panasonic TH-50PZ80U tv, error- 2 blinks

1. Reseating the connector P25 may solve the problem. If it does not.
2. Unplug the unit andd disconnect the connectors A5, A6, and A7. Apply power to the TV. If a White screen comes up and all voltages check normal, replace the P board.
3. If the TV stays on after isolating the SC board, then replace the SC board and the D board; it is likely that the fuse on the D board is blown.

Posted on Dec 06, 2009

  • 8457 Answers

SOURCE: TH-50PZ80U POWER INDICATOR LIGHT KEEPS BLINKING

Power board it dead,take the tv aparts.Check for Capacitors parts for puff up or burst open.Know how to solders?replaced these capacitors in the power board.Or replaced the whole power board.Tries Shopjimmy.com,Ebay.com.

Posted on Jan 19, 2010

  • 8457 Answers

SOURCE: plasma 50 inches dont turn on

The power supply board is dead.Tries the websites like Shopjimmy.com,Ebay.com to buy the refurbish power supply board for the replacement.

Posted on Jun 22, 2010

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1 Answer

My Panasonic Viera TH-50PZ80U went out.


It sounds that the main digital board has damaged. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1000 posts to different brand TVs now. Pull up older posts there.

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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.

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Check if your power supply if works if working them the main board is defective...You can buy that at your dealer or service center

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Good news - it's under warranty. Take a look at:

http://www2.panasonic.com/consumer-electronics/support/Televisions/VIERA-Plasma-HDTVs/Warranty-CCP/model.TH-50PZ80U.W#ts

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Panasonic Viera TH-50PZ80U No sound no audio only buzz.


Found the screen had a small crack and was shorting the video circuit.

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