Shafovaloff1
Well-known
Try using a nonstandard flash that sends a jolt through the system. Also, shine a flashlight on the meter sensor on the bottom below the shutter curtain when you take the lens off. I would like to find a copy of the repair manual. If I ever find one I will post it where everyone can see it. Though it is a somewhat delicate operation to remove the camera top it is not more difficult than a Leotax or Nicca. The bottom is easily accessed but watch out not to undo any solders and note the position of parts. Dismantle in a tray or something. I have posted pictures on PhotonMe Flkr. And can send files which have access to shadows if anyone is interested.