Power light and screen blinking

@razielsd this could be a multitude of things. the constant blinking (no pattern) is indicative of an error with the power management system. The quickest way to test is by disconnecting the main board from the power supply board, plug in the power supply board, after that you should see some lights in the screw holes if the power supply is good. If you do not, then you can move on to the mainboard. Worst case scenario would be a bad panel, which can also cause this error. It might help if you post some images of the back of your TV with the cover removed as well as images of the different boards. Of course, a bad capacitor is always a possibility as well. Post some images of your boards with your question. That way we can see what you see. Use this guide for that.

Power board does show significant heat damage.

"For my TV, I followed your previous guide and was able to get the back light to come on.

I went a step further and unplugged all the cables from the main board and plugged things in one at a time. Started with the speakers and got sound(previously none). Next was the power button( the button wouldn’t turn the TV off but the remote would) still had sound.

Then one of the ribbons for the display and everything was the same. When I plugged the second ribbon in it went back to flickering. I switched which ribbon was unplugged and the problem persisted. I then tried one of the ribbons going between the screen controllers and got everything but picture (no surprise).

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