It is not receving power. This might be due to one of several causes: defective power supply, damaged buttons on the tv or remote, or a switched off surge protector. Even if the PCB board is replaced, the set MIGHT not turn on.
You can try the following first. Unplug the TV. Leave it unplugged for a minute. With set unplugged, press the power button and hold such down for atleast 10. Release the button. Plug the TV back in . Press the powe button. Wait. See if it comes on.
After that, only a shop might inform you whether it would be worth it to try to get it fixed. Again, there is no guarantee that replacement of the power supply will enable the TV to power . up. Sorry.
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