Dear Experts,
I have acquired a HP41 CV from eb**. It looks okay, and I can
calculate with it and write little programs, but each time
I press ALPHA the display goes blank (except for the ALPHA annunciator) and freezes. Entering letters or digits is not possible.
If I press (ON-Backspace) or (ON-Enter) it goes back to the 'normal' mode and displays the last stack allright.
Several tries with MEMORY LOST/battery removals did not change this.
Has anyone of you seen this? Is there a possibility to fix this or should I just forget about the machine and buy another one?
Thanks for any hints,
Martin