So aside from a bit of dust, the insides look fairly decent. I did notice one part on the analogue board, though, where it looks like the PCB itself has been… burnt? Any ideas what it could be? Is it anything to worry about?
I put it back together and popped in the known working logic board, then plugged everything in and booted it up, and… success!
Aside from a little geometry adjusting, this monitor looks perfect!
The next thing I tried was inserting a blank floppy disk. It read it and asked to initialise it, which I let it do. The initialisation was successful and the disk mounted. I could copy files to and from and everything seemed fine. So then I went to eject it, and that's where I hit a problem. It sounded like it fired the ejection mechanism, but it didn't actually push the disk out. After awhile it just re-mounted the disk. I tried it again a couple times before resorting to the paper clip. When I used the paperclip, though, it felt like the disk was snagged on something, and it took a little bit of force to pull the disk out. With the disk out, however, it behaved as if the disk was still in the drive — the ejection mechanism fired, it attempted to re-mount the disk, then told me that the disk couldn't be recognised and needs to be either ejected or initialised. If I choose 'eject', it does the same thing; the ejection mechanism fires, then it attempts to re-mount the disk, and comes up with the same dialogue window. If I try to initialise it (because I'm weird like that and wanted to see what happened) the initialisation fails, the ejection mechanism fires, it attempts to re-mount the disk, and I get the same dialogue window. I tried this a few times, but got nowhere. So then I decided to just flip the power switch off and boot it back up again. Here's where it got weird — when the screen came up, I saw the floppy disk icon (sans question mark) for awhile and heard some grinding in the floppy drive, as if it were trying to boot off the floppy drive, before it gave me the happy mac and booted up off the hard drive. When it got to the desktop, though, it immediately started doing the same thing again. It thought there was a floppy in the drive, attempted to mount it, gave me the eject/initialise dialogue window, and dropped me back in the same loop.
I'm old enough that I've used floppies for quite a large chunk of my life, and I've never seen something like this. Any ideas? I'm going to try inserting the disk again to see if that does anything, but I'm sure it's going to be stuck in there again and I'm out of ideas beyond that.
I put it back together and popped in the known working logic board, then plugged everything in and booted it up, and… success!
Aside from a little geometry adjusting, this monitor looks perfect!
The next thing I tried was inserting a blank floppy disk. It read it and asked to initialise it, which I let it do. The initialisation was successful and the disk mounted. I could copy files to and from and everything seemed fine. So then I went to eject it, and that's where I hit a problem. It sounded like it fired the ejection mechanism, but it didn't actually push the disk out. After awhile it just re-mounted the disk. I tried it again a couple times before resorting to the paper clip. When I used the paperclip, though, it felt like the disk was snagged on something, and it took a little bit of force to pull the disk out. With the disk out, however, it behaved as if the disk was still in the drive — the ejection mechanism fired, it attempted to re-mount the disk, then told me that the disk couldn't be recognised and needs to be either ejected or initialised. If I choose 'eject', it does the same thing; the ejection mechanism fires, then it attempts to re-mount the disk, and comes up with the same dialogue window. If I try to initialise it (because I'm weird like that and wanted to see what happened) the initialisation fails, the ejection mechanism fires, it attempts to re-mount the disk, and I get the same dialogue window. I tried this a few times, but got nowhere. So then I decided to just flip the power switch off and boot it back up again. Here's where it got weird — when the screen came up, I saw the floppy disk icon (sans question mark) for awhile and heard some grinding in the floppy drive, as if it were trying to boot off the floppy drive, before it gave me the happy mac and booted up off the hard drive. When it got to the desktop, though, it immediately started doing the same thing again. It thought there was a floppy in the drive, attempted to mount it, gave me the eject/initialise dialogue window, and dropped me back in the same loop.
I'm old enough that I've used floppies for quite a large chunk of my life, and I've never seen something like this. Any ideas? I'm going to try inserting the disk again to see if that does anything, but I'm sure it's going to be stuck in there again and I'm out of ideas beyond that.