This happens way too often, sometimes it just doesn't turn on (the red standby led isn't on either) and I have to unplug the power cable, wait a bit, plug it back in, after which the red LED starts pulsing for like 10 minutes and then I can turn it on.
Is this a problem with the power supply, bad cable, bad TV, software? Any help would be really appreciated. It's a 40PUK6400 by the way.
No idea what causes the issue but I'm so sorry for buying a Philips TV. Did the same a while back and wish I hadn't.