I know, I know, you aren't supposed to change the speeds first but I was in a fit of photographic ecstasy and didn't realize I had changed speeds first until after the shutter jammed. Now I press the button and it won't fire. I've tried moving the shutter speed control around. I'm getting ready to tear the top off but I've not found anything online that describes what I'm looking for in the way of a jam. I read someplace that a cam will go over another part and stick but I can't find a description of what I should be looking for. I've torn apart a lot of rangefinders in the past but never anything in the FSU or Leica vein.

Any advice is appreciated!