Last week I bought a Roland XP-10 which was in desperate need of some tlc. In the photo’s it was visible that about 10 keys where stuck down. I thought these might be physically broken but according to the seller some keys just don’t come back up when you press them sometimes. Apart from that the seller said the keyboard (and display) work fine. I asked because I know the displays on these have issues.
I bought another project Roland D-70 about half a year ago. I’ve fixed one a few years back and this one also has problems with the keys. I thought it would make a nice midi controller for my Roland FA-06 so I bought it.