Hi, I just bought a Demi S. The meter works but the exposure matching needle does only move with aperture setting, not with shutter speed selector. That is wrong right!? Do you know where the shutter speed selector should hook up with the meter? Is it in the lens assembly or up under the top cover?
I'm not sure ... but on the lower edge of the shutter speed cam on the shutter there is a long tab that extends rearward and engages a fork inside the camera body. Not thinking of any other obvious function for it, I think this may be a coupler for the meter, and it could be bent, broken or disengaged.
I have some notes on the Demi S which may or may not be helpful - you're welcome to a copy if you write me at rick_oleson@yahoo.com