I’ve just added a “Resources” page.
This is where I’ll provide links to relevant Service manuals etc..
Just right-click and “save link as..”
So far, I’ve uploaded the Korg Delta stuff and a zip file of Roland Synthesizer factory presets.
(This came about as a result of a thread on Vintage Synth Explorer and the fact that I may have a Roland U20 with no patches coming in shortly)
Let me know if there’s anything like this you need. I may already have it (I have a lot of stuff archived)