Hi all, first post. Hope someone can help.
I have a 20+ year old Casio FX-795P Calculator in mint condition.
It sat in a drawer for years and the batteries went flat & I lost the program that was running on it.
I did remove the 3 batteries some years back and so no battery corrosion issues.
I recently got it out and put fresh batteries in.
It turns on and I get the Ready PO message.
Everything seems fine but I get an Error 1 displayed when I try to do anything. Even simple calculations.
Is it toast ?
Any help most welcome
Cheers
Paul