hiiiiii!
i've just acquired a Casiotone 403 for 37 USD (hope i got a good deal on it) but it has an issue with the accompaniment section:
there seems to be a constant drone of a few notes, sounds to me like the first preset (piano). everything else seems to function normally though!
i opened it up and sprayed contact cleaner on certain areas (no idea what i'm doing) but nothing improved..
anyone happen to know how to fix this? i've provided a video below of what i'm talking about... much appreciated thank you for reading 🤠