Hey Chris,
Thanks for the suggestion. That didn't change anything, sadly.
Someone else also pointed towards possible failed floppy drive controller - but that assumes the FZ always tries to check the FD when booting (as the OS itself is on ROM).
Then they suggested the ROMs themselves might be corrupted! Now I know these are EPROM-looking things, but the horror is they are soldered directly in (not socketed) and there are no images of the firmware floating around that I know of anyway (only the FZ-1).
The only other thing is that the big capacitor on the PSU has some odd looking gunk at the bottom on the board - maybe just epoxy or similar, but _maybe_ an issue. Perhaps it has hosed one of the v-reg outputs or something - if anyone knows where to check for particular voltages. Also a photo of someone else's FZ-10M/-20M power boards would be useful to check how that cap should look.
I'll keep in mind your comment about the screen. This one /probably/ works on its own? I have an HS-2/E that in theory I could swap the screens to test, but I'd prefer not to have another rack unit open right now!
Cheers,
Dan
