2021 Samsung Neo QLED Intermittent backlight failure
Out of nowhere, turned TV on and found black screen. There is a dark image on the screen and sound works fine.
After some trial and error, I have found that if I power on the TV and let it sit for 5 minutes or so, unplug it and plug it right back in, TV operates normally, picture is perfect. It will operate like this for hours. I have never left it on to find out how long. I can switch it off and on without issue after it has "warmed up". If I let it sit off for a few hours and power it back on, same black screen until I let it warm up, unplug and plug it back in and it operates fine.
I was planning on starting with the low hanging fruit and replacing the trio of boards and see what happens. Curious if anyone has ideas on what may be the cause here if it isn't a board. Almost seems like I have a bad connection and after it warms up a bit and expands, connections are made and the TV operates normally.
Thanks for any guidance. Added photos of the boards and the before and after photo after the TV warms up for about 10 minutes.