Circuit Overview:
A digital sampling synthesizer with waveform editing, resampling, etc. No analog filtering in this machine, 1MB ram stock and 2MB in FZ-10M rack mount module version. FZ-20M very rarely seen which was SCSI and more tools.
Service Tips:
Notelt has done a great job linking everything anyone can find it appears so go there for backlight display replacement help, a forum, parts links, etc. The one time I ran into one of these something was wrong in the computer and we scrapped it. I assume floppy drives are a problem of course. Otherwise normally pretty reliable machines. Key contacts problems eventually. See the general repair tips for help with this problem if it arises.
Parts:
Casio totally abandoned these of course years ago; one of their last attemts to make something for the pro market. I scrapped one here so have lots of parts. Check Notelt's site for parts also I think.
Contact Sound Doctorin'