Asahi Pentax ESII photometer stuck Repair

Thanks for the explanation (there was a url link here which no longer exists)
Its clearly difficult buying parts to this model camera on ebay if is necessary replace some one because i don't find almost nothing, just lens and accessories.
About the value i saw prices between €80 and 150.

About the circuit board is the upper or the lower? And can you tell me more about theese IC's??

There's not much to tell. You've seen the circuit board under the bottom cover. It looks a little bit like a stick of memory from a computer, and the little black square dooflotchies on it are IC's or "chips". It's been a while, but I don't recall any circuit boards under the top cover, at least not to amount to much of anything. Your problem could be elsewhere from what I've said, but since I can't have the camera in my hands, I'm at the end of the matter I'm afraid. GL

Thanks for all the help

best regards