I think I could send you a diagram of the board and capacitors it will save you a lot of money!
If you can solder and desolder thats fine
Unfortunately I cant blow the picture I have of the powerboard without losing definition
Basically what you need to do and it wont be a big job is to replace them all EXCEPT for the big ones I can see quite a lot in the output and a spreading of smaller ones but theirs not that many,if you see any swollen or leaking they are the most suspect
If need be I will upload that picture of the board itself.
You need to have a look yourself and its the board in the middle low down in the set,the other board covered is the mainboard and should be ok
Its very easy to take out and with your knowledge you will be fine
The electrolytic capacitors are available from radio shack or similiar
I think either board as one is a refurb from partstore.
The schematics nowadays are woeful for samsung
So take board out and examine you will see the electrolytic capacitors yourself it may even be obvious whats failed
Let me know how you go