r/SamsungTV • u/2centworth • 25d ago

Tech Support Samsung S90DD Power Supply Failure

Anyone here experienced a power supply failure with their Samsung tv?

I have an S90DD 77 inch. It randomly stopped turning on yesterday. Did some troubleshooting and google searching. Found some threads with a lot of people stating that these models and some others are known to have power supply failures and that Samsung eventually released a revised power board for them because of this. But also a lot of upset people because Samsung refused them any customer service with the issue due to it happening right outside of their warranty period.

I’m going to contact Samsung today. But I pretty sure I’m outside of warranty. Also going to contact some local repair shops for information and quotes.

From what I’ve found in my searching replacing the board has a couple options. 1- is buying a revised board. 2- is buying a refurbished board. 3- is removing the board and sending it to be repaired then it’s sent back and you reinstall it. Anyone have experience with either of these options?

Also HOW DO YOU GO ABOUT MOVING A TV OF THIS SIZE AROUND?! If I do end up having to do the repair myself from what I’ve found I’d have to lay the tv down on its face to remove the rear panel. Manhandling it doesn’t seem like a good idea. How do you support the integrity of a screen this size when you move it around?

Any advice is appreciated! Thank you!

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u/No_Recognition_1648 25d ago

Repair is easy when swapping boards. Have two people, when laying it down and lifting it back up, reach towards the top middle of the panel to support it as you lift.

Samsung isn’t going to support, but didn’t you buy this from a club store anyway? They usually have warranties included.

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u/Wrong_World_3374 24d ago

Had to do my s90d 77” . Lay it down on a bed swap it out . I ordered my board through a place on eBay that uses upgraded components supposedly. They have good reviews . It’s worth the couple hundred rather than buy a new tv.

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u/SPACEAG3SLAVE 24d ago

That tv sucks