HP 41CV problems

[nhkader]

Dave,

Thanks for that useful tip. I’ve actually purchased another 41CV board to get it back to what I had in 1982 when I did Chem Eng at university. It’s pure nostalgia. If these type of problems persist, I will eventually take the plunge to the CL board.

But I will clean the contacts and be extremely mindful of the plastic posts as my calculator has not ever been opened.

Thanks for the useful responses.