Note: Auction links are affiliate links for which the site may be compensated.
via
this auction

"Supplied With:
Built in, original Power Cable
The Factory ROM Cart (Couple banks of 64 voices and 32 performances + MicroTuning sets)
Original Owners Manual (80+ Pages, decent condition with slightly worn/dog eared cover)
Functional Condition:

All keys individually cleaned, Dust removed (Synth feels and smells fresh and clean!)
All buttons are working great 100%
Pitch/Mod/Velocity/After-touch/Control Sliders/Volume all working fine.
Crackle Free Volume slider/jack
Output Jacks, headphone jack, sustain/foot control jack and MIDI ports working 100% (can't test breath controller input as never had one)
LCD and LED readout working 100% - super bright back light.
Internal Battery is showing 3V+ so shouldn't need changing for many years.
Cosmetic Condition:
Very nice/clean overall condition
Some minor nicks and scuffs on visible area (small one below screen, small mark between pitch bend/mod wheel for example - see photos)
Rear side is clean and logos are in tact
End Caps are solid
Underside has a few scratches, marks and scuffs from keyboard stands (but bear in mind considering this is a 30 year old synth the important visible sections could almost pass for nearly new!)
Very solid overall, no missing screws
All four original rubber feet are present
Manual is complete, cover is a bit tatty"