Just how it left the factory. I haven’t cleaned this at all!
I do see one major issue that needs to be addressed quickly. I had already bought replacement capacitors before I opened the machine, and now I’m glad that I did. I don’t see any damage to the board, but this one needs to go as soon as possible before bad things happen. Of course, this is the only one that I couldn’t get at the local electronics shop, so time to order one.