Anyone had the misfortune of using Mitsumi 2.8" Quick Disks? They are quite possibly the biggest technology turd of the 80's (at least for synths).
Take everything that was good about floppy drive technology and throw it out the window. We have:
*Nonstandard disk size and format -- CHECK
*No sliding latch to protect the disk surface from dirt and dust -- CHECK
*Drive uses oddball parts -- CHECK
*Drive is belt driven and the belt is made of a material that disintegrates into nasty black goo over time -- CHECK
*Drive is notoriously finicky wrt head alignment, motor speed, gearing -- CHECK
*Unreliable, drives and disks can just up and die at any time -- CHECK
Thankfully I think there's only a few musical things that have these in them (Akai S-612/MD-280, Akai S-700, Roland S-10, and the bizarre Yamaha MDF-1 MIDI disk drive, anything else?)
I just spent the better part of a day reviving an MD-280 that I got for 'free' with my Akai S_612.
I should have left it behind, I should have known better. This thing looked like a family of pigeons made a home and shit in it for a decade. I sacrificed a dead MDF-1 I had laying around, pulled the drive out of it and discovered (quelle surprise!) that the drive belt had rotted away to goo. Cleaned that up and put on a suitable elastic band, then dug into the MD-280.
Ugh, ugh ugh.
I wont even touch the drive in this thing it's so horrid.
I just unplugged it and plugged in the Yamaha drive. I had no idea the drive interface even worked at this point but I was able to get the thing working, saving samples, verifying the saves and reloading them.
This should not have worked. The odds were pretty stacked against any sort of revival. I owe a large favor to the synth Gods and I fear it's going to be steep if/when the come to collect.
did I do this?
I needed a reliable working drive so I can come up with a way to replace the Quick Disk with a floppy drive emulator board (probably the HxC board). The power supply and data cabling for the Mitsumi drives are completely different from a regular floppy.
Wish me luck!