“I bought this in 1987 from the original owner. I have tested it and all keys, knobs, switches, sliders, bender, sampler, arpeggiator, etc. work. I recently opened up the back to replace a couple of keys but did not dig deeper than that. No excessive dirt/dust (for a 40 year old keyboard), but I imagine if someone is going to make this their new baby, they may want to get in there and “detail” it (videos online for that).
No manual (never got one) but they are free online.
NO AC adaptor included (original broke a LONG time ago)” Click here to visit listing on eBay