Are the port connectors in the back of the HP-41 known to be a failing commodity?
I have two HP-41CX's that have such failing port connectors (the orange connectors inside the ports).
I first noticed the HP-41's going nuts with strange symbols scrolling on the display, frozen display, no response to any key strokes (not even ON+CLX), etc.
I tried various combinations with the modules I had plugged in and concluded that it must be the connectors that are failing - on ports 1 and 3 on one of the calcs and port 2 and 4 on the other calc.
Not that I think it matters, but I have the following modules in the calc(s): Double XM, AECrom and NoV-32 (with CCD OS/X and Ext IO).
Why do the connectors fail?