My Samsung smart tv has no picture, how can I fix this?

A power board will never cause a sound delay issue, if it's doing it on all channels its most likely an input issue, such as your cable box, fire stick ect

Yes, replace the tcon board, good chance it will fix it.

Hi there
I would go to menu on the remote , from there to picture go down the list, if you do not find anything there to help you. Go to Support and to the E manual .
Kolbrun

Here is what to check when your TV is turned on, power light is ON, but no picture is seen or sound is heard:

1 - Be sure the component you are using (Xbox, Cable, SAT, ROKU) is turned ON.
2 - Check to be sure all cable and cords are securely connected to the TV inputs and component outputs.
3 - Make sure you are on the correct input as some TV's will show a black screen if there is nothing connected to that input.
4 - Unplug the input you are trying to use from the TV (such as an HDMI Cable) and plug it back in.
5 - Check for signs of damage on all cords and cables from the TV to all components.
6 - Make sure the TV is not in ENERGY SAVE MODE, press the button on the remote control to go back to normal mode.
7 - Unplug the TV for 10 minutes to see if there was a temporary one time issue with the TV.
8 - Disconnect the TV from power for 2 minutes, then when plugging it back in PRESS AND HOLD THE POWER BUTTON ON THE TV FOR 10 to 20 SECONDS to try and force the TV to reset.
9 - If after checking all these different issues, you may have a Faulty Power Supply Board, A Bad Capacitor on the Power Supply Board, Loose Wire Harness, or Loose Ribbon Connector in the TV itself.
10 - Most likely when a TV has the power light ON but NO PICTURE and NO SOUND, it is the Power Supply Board that has failed.

BTW, here are solutions for you to play iTunes movies on Samsung smart TV

Good morning Shelly.
My Samsung smart TVs has a remote like the one in the picture.
In the middle, I hope you can see a multicoloured button that is to put on the smart function. It is best to go to menu on the remote, open Support and scroll down to Contact Samsung, go all the way down, there you see the model and make. You can also visit

Electronics Appliances Tablets Laptops Phones TVs Samsung US

It all depends on the connections and cable.
If you are using a HDMI cable and have sound but no picture, then your TV probably needs to be fix.
if you are using a RCA cable or component cable, make sure that you have the correct TV input.
you don't specify what type of TV you have, but if I were you, I'll check the connections first.

I work fixing TVs, and am a Samsung authorized servicer. Outside of doing the best thing, which would be to take it to a repair shop, it needs a Main board. The power supply is fine or it wouldn't make any picture, and cleaning something won't fix it.

It means your tv is in shop mode. Turn it off by pressing Info button on your remote control then follow from there.

you might need a fix it kit some mother boards e prom go bad seen this a lot i have a 32 Samsung doing that same thing check ebay with the number of the board starts with bn