I just bought a 1970s made Minolta Color Meter off ebay (the one with the two rotating scales). It’s a beauty.
Does anybody have more detailed info on those? I found a manual as PDF but it’s not very service-centric. There are 11 (!) little trimpots under a service opening at the back, plus two or three more behind the silicon diode PCB. Tracing some of the wires I have an idea about the functions of 3 or 4 or the trimpots, but especially how the cyan/magenta balance is setup is still quite unclear to me.
Any input is very much welcome.