This is for those who find they have no image on their TCL Tv's. If you see the TV power in but don't see the display, shine a light at the black screen. if you see a faint image in the shadow, this fix my work for you. This 55" has a fault that I repair.

the diode:
https://www.digikey.ca/en/products/de...

Soldering is easy and the supplies are cheap. Lots of YouTube videos are available to show how to solder. A solder sucker and Solder wick make the job easier but aren't essential.