Hi again,
sorry for making so many questions, but I don't find a solution for them anywhere else.
I tried to repair the card reader of an HP-65
I replaced the gummy well, and now the card passes (more or less well) trough the calculator.
But as it's passing by it makes a very loud high pitch sound. I tried to re-assemble the reader several times and putting more or less pressure in the screws that hold it together, but it still makes this annoying sound (and the speed is erratic).
Can anybody point me to a solution?
Best regards,
Jorge