Issues with magnetic card reader on HP-41CV

[John Garza (3665)]

(08-24-2024 05:19 PM)CheshireChris Wrote:  ...I bought one sold as "untested" because the seller didn't have a calculator to test it with, but no reason to suppose that it doesn't work....

That statement is as wrong as wrong gets.

The card reader components are well past their expected service life.
The proper procedure is to assume it is faulty unless the device has been serviced recently.

-J