Hi all
Thanks for all your inputs. I found some Excel sheets about the capacitors and will go through the boards first. Maybe I'll also do the big main board.. I don't trust any late 80s until early 00s capacitors anymore I've seen too many failed ones.
When I'm done with this or hit a snag I'll come back to this thread. Regarding the Dallas, good idea recording the calibration data. I got a video with the data for the 2465B. I hope I can do the same with the other scope after I get it running again and nothing is lost yet.
The DS1230Y/AB still has batteries, that would have been to easy...
I found this document with several solutions for replacing the Dallas chips
(after going through that PDF I'll try to find the reasoning against and then make a decision)