Samsung Smart TV UN65NU6900f won't turn on

Today we're going to be looking at a Samsung Smart TV with no power.
Symptoms:
-no indicator light
-won't respond to remote
-no picture
model number: Samsung UN65NU6900F

[@huysam1977]

Nice tutorial!

[@surefixtech]

Glad you think so!

[@ricksimmons7998]

good vid where can i get the board for my tv

[@TheRedskins2175]

What was the replacement part since it wasn't the exact match?

[@surefixtech]

You can find the part number on a sticker on the board, usually starts with bn97 bn96 or bn94