HP-41CV doesn't function properly

[LarsF]

I have replace the pieces that I was suspecting was the problem, but it still don't function properly So I decided to send it to The Calculator Store in Spain, I hope they get it to run like it suppose to do. In my eyes, the condition is very good, so it will be a lost if I don't get this running again. (what wouldn't you do for an old calculator that was a dream when it was released in the late 70's)