The capacitors on both the logic board and the analog board all look fine, but of course, it isn't easy giving the underside of capacitors on the analog board a good look without removing the analog board (which I only want to do if I'm replacing it with another--which is my plan.)

In about a month, when it's my birthday and I'll have more money, I'll order a replacement floppy drive (since this one won't read disks) and a replacement analog board. And then, when I switch out the analog boards, I'll know for sure if it was indeed the problem.

Updates to come then!

-Apostrophe