I have a 55” TCL Roku TV (55S405TNAA) that was working fine, then the next time it was turned on has no picture. Clicks are audible when adjusting the volume or navigating the menu. Flashlight test does show the menu.

Is this most likely a panel issue or an LED strip issue? If one LED strip goes out does it deactive the rest?

I feel confident and comfortable that I could replace any of the panels.

I do not feel so comfortable about replacing the LED strips after watching a youtube video…hoping its not that.

Thanks!