Frankie Xenon, those little brown box things are SMD components, like resistors and capacitors etc. It is very hard to identify which ones they are. for that one will need the right schematic etc. To replace them, one will have to have the right tools and the right experience. You could try and match them according to a schematic, if you can get it, or you get try to get it professional repaired, if any of the shops has the right schematic. The only other thing would be to replace the board. Hope this helps, good luck.
It could help if you post another image of the area outlined in yellow. If you have a macro lens that would help, I am trying to identify the "C......" but have trouble when I sharpen it. Right now it appears as if all the components are capacitors. It also could very well be that they are the same "size" (having the same values) Looks like a "Valhalla" board.
To clarify what I am trying to explain:) a Picture is worth a 1000 words ;)
Replace the bad capacitors with new ones of same value as the caps shown on the image. Measure the capacitors on one sale to find out what capacitance they have. The big issue here will be that you need to have the right tools and the right skills.