@wildweasel huh.. my FD-75 didn't have an issue with a cleaning disk, it spun it for quite a while, that's stange
@mavica_again yeah i'd presume this revision tries to detect whether an inserted disk is magnetic when inserted, and the cleaning disk is not, so it throws the error immediately.
i'll just have to get in the mood to shove anything into this that isn't a disk 😔
@wildweasel also, if you don't want to take it apart you can get extra long cotton buds, if you're careful enough to clean the heads without damaging them
on ebay uk those are more readily available than cleaning disks, at least