My sister decided to start using her old Asahi Pentax ME again. She shot a roll, and when it came back blank she remembered about the light meter (amazing how using an automatic-everything digital camera for a few years can dull the senses). Anyway, she determined the battery was dead, replaced it with a new battery, and it still doesn't seem to be working. So she has asked her old-school brother for advice. I live too far away to put eyes on the camera, but I told her I knew where to find one or more people who knew everything there was to know about this camera.

Does that person or persons have any advice I can pass along to her?