Olympia Mastertype 3 Typewriter "carrier circuit board problems" Questions

...circuit board slot 10 to 15-times, and still the same thing. I looked at it carefully, magnifying glass, and cannot see anything wrong. And I took the keyboard apart, and still nothing looks wrong. ...

circuit boards and who can you get to fix them, every repair person I have talked to says they do not work on Olympia any longer because they cannot get parts. I have four of these and they all do the