I have power to the tv because I installed lights that connects to USB port in back but the screen no long have a picture or when you turn it on where it has the box that tells you that you have no connection any longer. I took the lights off to see if that changed anything but it didn’t. Still turns on but I still have no lcd display. Any suggestions
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rscillion0311 all that the lights installed show you is that your USB port gets power. You will have to remove the back cover from your TV and take a look at the power board as well as the main board. Measure the voltages on the power board and let us know what you get. Disconnect the wire from the power board to the main board and see if your TV’s backlight comes on. Post some good pictures of your boards with your QUESTION. That way we can see what you see. 在已经存在的问题里加入图片
For now, this does sound like a power board failure.
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