Seiko DS-250 Digital Synthesiser Keyboard | Vintage 1980s | Polyphonic | Japan i think its been opened as there are a few screws missing. i powered it up and tested the keys and thats all. i have no idea about these,dont know of any faults as i am not into keyboards .the power supply on the right is loose inside but works see pictures of all items in the lot. its in the items not working due to not knowing anything about it.
