Hello! I Have a LG 65UH5500 that shows the LG logo for a split second after being plugged in, then goes black and the power led blinks. I understand the led strips can cause this and want to start troubleshooting the right areas. I'm concerned because I have not been able to see anything with the flashlight test, or produce any audio. Any suggestions? Short video of the problem:

streamable.com/w0e5z

I was under the impression that when the led strips are at fault, you can at least see a faint image with the flashlight or get sound?

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Hello World!