Few if any TV techs show up so I share this so you know what you are in for.
First you need some background in electronics repair. If not, you arrange for repair. I've yet to find any TV tech reply since many will insist the diagnosis be correct. It can't be without the TV on the bench with the usual service manual, spare parts and test gear.
If you have the background see if you can get the service manual from www.samsungparts.com and read what it suggest for no power.
While you get that, read more at http://www.shopjimmy.com/tv-repair-tips
When I press the power button on my Samsung 75"4k smart TV it does nothing no clicking ,no red light flashing it doesn't do anything it just turned off one day while I was watching it and now it want turn back on it want do anything and it's only two years old what could the problem be? This thing cost way to much money to jus up and throw out or to jus toss to the side and replace with another one so could someone please help

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