Minolta added a protection feature on the Maxxum Series-xi and Series-si cameras which does not allow shutter release without an electronically attached lens. An electronically attached lens is a Maxxum or Minolta AF or other manufacturer lens with electronic contacts.
If you planning to use your Maxxum camera with a lens which does not have electronic connection to the camera, microscope or telescope adapter, you must switch off this function.
I dunno if this will causes the camera to go hairwire.