I have bought a Konica Auto S from a junk store and it was originally reserved as parts. But then later I found its meter moving and those failures were actually just screws got loosen and shutter jammed by dead oil , I cleaned them up, put all stuff back together , adjusted, changed light seals and now the camera works like new.
The only problem now is the frame counter. It was working originally but now it sometimes doesn't advance. The counter plate doesn't more , or moved but it jumped back to the previous count.
Any idea how to fix it ? I see no parts were loose in that area.
Thank you.
The only problem now is the frame counter. It was working originally but now it sometimes doesn't advance. The counter plate doesn't more , or moved but it jumped back to the previous count.
Any idea how to fix it ? I see no parts were loose in that area.

Thank you.