Mac Mini A1347 won't start up. LED flashes once shortly & stays dark

Hi guys,

I try to revive my old Mac Mini Mid 2010 for media center usage. As it suddenly stopped working after replacing and adding HDDs over the last couple of years, I re-opened it some days ago out of nostalgia, just to try resurrecting it again. All the components, RAM, HDD etc work on other devices, but I came across some corrosion.

Especially around the area of the power plug.

My question, is there a way to try to fix this, fuse kind of thing?

LOWER EDGE BETWEEN THE RAM AND THE METAL