Hi, i got a flat screen someone was throwing away, the problem is that it works perfectly for about 30-45 min, not too sure on the exact time. After that the backlight turns off and stays off (it may flicker for a second before turning off), i can turn off the tv for while and itll turn back on normally and work for a while again.
I had opened it up and looked at the caps on the power supply and they look fine. Attached is a picture with the back cover off... would love any help to know what might be the right board to replace.

Thanks!!!...

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Hi, im from saba, dutch Caribbean. Not new to some electronics repair, hope to get some info on repairing an Led tv.