Question about Vizio Televison & Video
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?
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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Posted on Jan 02, 2017
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