Can you find a part number somewhere, search for another brand TV in which the panel is used and then find a YouTube video to explain dismantling the panel itself?
I have just dismantled the panel in a edge-lit Samsung 32" TV to try to fix a backlighting problem. In my case it's actually unrepairable as the light diffuser sheet is cracked giving internal reflections. If it had simply been an LED problem it would have been an easy fix, hence well worth attempting.
In the Samsung I had to disconnect a couple of ribbon connectors from the timing controller to the LCD screen, unclip all around the screen and then the LCD panel simply pulled away to expose the LED edge strip (and diffuser sheet behind).
I couldn't find my exact model, but here's an example of one of the many videos that I referred to:
https://www.youtube.com/watch?v=0h433tokO1U
EDIT: This video was also quite useful:
https://www.youtube.com/watch?v=77tymvTJDxo