Its 90% certain to be the same issue because many of the new boards did not have modified parts fitted so it was inevitable it was going to re-occur this fault
You can do this yourself and you have 2 options
The cheapest and by far the bestoption is to replace these parts yourself costing under $10 but you or someone you know would need an ability to solder not to a high standard but be able to use a soldering iron and de-solder wick
Option 2 is more expensive but will be more than half the cost of your last repair and involves changing a board
Let me know which way you want to go with this
I have done basic soldering before, let's try that option please.
Thats good news!
OK Samsung have had global issues with poor quality electrolytic type capacitors on the powerboard
The powerboard is easy to find just trace the powercord upto it
Capacitors causing the issue are usually grouped in the top corner of the board
They start to either leak electrolyte or frequently bulge at the head and body due to overstress on the di-electric inside
The solution is to replace these devices with better quality ones so if you find a 1000uf 16volt 85 degree c one you upgrade it to 1000uf 25v 105 degrees c
Here is a video of a guy with a similiar problem replacing these capacitors with a similiar issue to yours
Let me know if you need more information
Thats a pleasure!
If you need me again the thread will still be open
Many Thanks for accept/feedback