Weird behavior HP41c

[Neve]

(10-02-2017 04:45 PM)Geoff Quickfall Wrote:  Does it only happen when the quad is in place? Is the calc stable without the quad in place?

To be honest, I haven’t tried.

(10-02-2017 04:45 PM)Geoff Quickfall Wrote:  If so maybe a contact problem on the module. Ensure contact springs in module (visible) are not deformed. Perhaps an intermittent contact causing the partition to corrupt when calc is jiggled.

I have placed a drop of DeOxit gold or Red on the contacts of the module then plug and unplug a few times.

I’ll check that and use some contact cleaner if needed.

Thank You (Again...!)