33C key not working

[aurelio]

(03-24-2020 08:48 AM)Moggul Wrote:  Thank you Aurelio.
The self test comes as full 8's and the calculator operates normally.

I have opened a couple of 32Es and the posts are very brittle so I am quite reluctant to open this fine unit. Also when opened, series 3 machines tend to show display errors as the LCD contacts come a bit loose.

thank you for the feedback, it seems to be a mechanical/contact issue. I've not other advices, you should check inside, I guess, under the keyboard, although I understand your reluctance in opening the calculator: if not absolutely required I never do it.
I opened in past times some of those spices with soldered and un soldered component, to solve problems due to ribbon corroded by batteries' leakage, once only successfully, but you won't believe me.. I've been always very lucky with posts and screws.
If you had a mint calculator, I mean cosmetically very nice, but defective, would you swap it with a worn one, full of scrapes but perfectly working?
This is the question...
Also for this reason sometimes collectors own duplicates