Mamiya 645afd error diagnosis help?

Hey,

I took off my 80mm af lens and went to attach the 35mm manual focus. The shutter fires a few times when I take the lens on and off for some reason and I get an error message and am unable to shoot. Any ideas what is happening?

Thanks,

Daniel

Which error? The manual has a list of remedies for the errors. If you don't have one, it is available free (or with a contribution for hosting) online. Search for mamiya afd manual butkus.