Mine has a fuse that looks like 2 metal sheets on top of each other. I don't know if it's reusable (pair of needle nose pliers?) The card is seen, so the fuse seems OK.

However, I think you're onto something with the termination. According to the book, I should have all 3 blocks terminated when using an internal drive and no external devices (which is what I want to do.) He has it set up for internal drive + fast & wide external. I don't have any fast & wide external drives at the moment. I'll need to somehow find 2 more terminators. They look weird, and aren't standard jumpers.

I'll also want to find a 68-pin terminator. I think I have one, but I'm not sure.