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I have a vizio pdp50x4 p50hdtv10a model plasma tv that went black picture. Opened it up and there were a bunch of bad capacitors on the power board. Replaced those and the tv would turn on then off.

Plugged up in rgb input and stays on but no picture. Tested fuses and voltage is within 1 volt of the published vs and va voltage levels. I notice on the logic board 4 green leds that LLC got up differently but still no light. The boards on either side has a very slight buz. Before it went dead sometimes when you hit the power button it would turn off but then turn back on about 10 seconds later. Also sometimes the power button on the tv wouldn't work. Remote would always work. Which board does this sound like? Even though voltage is reading correct can the power supply still be a problem?

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Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Posted on Dec 31, 2016

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Good day!!!


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
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Good day!!!

That problem is usually cause of bad inverter board or T-con board also there is the possibility that you have failing capacitors....

If your TV is totally black even back-light the problem is inverter board..please try to replace it to fix your TV.


If your have back-light but no image comes out...The problem could be on the T-con board..if that so please replace it...

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1. Open the back cover of your TV.

2. Look at the power supply board..Its normally connected to the power cord..

3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..

4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..

5. Some of the capacitors not bulged so its better if have a capacitance meter..

nineng_12.jpg
Look at the label capacitors...That is the sample image..

I hope this solution will be helpful...Thanks for using fixya...

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-=/ Daft Tech /=-

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