Black screen VIZIO D500i-B1

The TV works just fine if I plug-in the power supply and turn it on with the remote. It continues working as soon as I don't turn it off. Once I turn it off with remote, I'm not able to turn it on. I get the black screen, no sound, no black light is visible, the menu is not visible during the flash light test, and 5V present on power supply board. I can also see the standby light. The only way how TV starts working again is if I turn it off, wait at least 1 hours (with TV completely unplugged from the power) and plug it back to power supply again. Once I do that, TV starts working again unless I turn it off with the remote. Ideas how to determine what is really causing this issue would be appreciated.

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