Anyone have a manual or know why the Kodak Instamatic 500 hot shoe wouldn't fire? The PC-socket works so I can just use the hotshoe as a cold shoe with a PC cord for now but I'm wondering, are the contacts likely corroded or is there something I need to set for the hot shoe to fire? There is no VXM switch on the Schneider Kreuznach Xenar 38mm f/2.8 lens for me to set and the Compur shutter is supposed to sync at all speeds. Perhaps it is just broken.