Question about Panasonic Viera TH-50PX80U Plasma TV

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TV POWERS ON NO PICTURE

TV SHOWS A FAINT LIT SCREEN BUT NO VIDEO. BUTTONS ON FRONT OF TV ARE NOT RESPONSIVE EXCEPT THE POWER BUTTON

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I had the same thing happen to my Samsung 46" led TV. It was a compassitor. We called around to TV repair guys cause we didn't have a lot of money. One of the guys came out and fixed it for $50 on the side.

Posted on Apr 28, 2015

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1 Answer

Powers on, no display


Do you have sound? If so, dim the lights in the room and shine a bright flashlight on the screen and see if you have a faint picture. If you have a faint picture, you have a backlight problem. On most of those sets, the backlight inverter is combined with the power supply so that power supply/inverter board will more than likely be the culprit!

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Unless this JUST started happening AND the TV worked previously, or you recently added a device to your set up, I am guessing that you simply are on the wrong input. For instance, I have a playstation connected to Video 2 and if my TV is set to Video 2 input AND my playstation is NOT on, the screen will be lit, but no picture. Make sure you are on the correct input.

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only about two possible reasons bad solder connections or the picture tube is not getting the 6.3 volts for the filaments in the neck of the picture tube.

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That is actually image retention, but it's caused by the crystals that create the picture becoming polarized or ionized over a very long period of time....and it's not easy to DE-Polarize them !

But there are some theories out on how to do that....
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About the only way to make a white screen is to use the USB port for pictures and take a very bright outdoor shot of a piece of white paper that hopefully is out of focus too....That would create an all-white picture that you can plug into your TV set overnight....

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ok my tv is doing the same thing and i need help if you found a solution please email me at pieces41096@aol.com

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Press the 'Favorite' button on the remote. You may have accidentally pressed it. It locks the channel. Pressing again unlocks.

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