HP41CX tragedy strikes

[Geoff Quickfall]

100% guarantee that it is a compromised screw post front shell / screw back shell problem. Be it a suddenly loosened screw, cracked screw posts or separated screw post.

Check out this article and then search for "cracked hp41c screw posts" and see where that takes you.

Screw post article

Geoff

Do not tighten screws until you determine if the posts or shell halves are cracked!

Do not over tighten screws.

The module plugs and the battery foil are mounted to the same block and require a compression fit to the keyboard PCA. Otherwise dead or buggy hp 41c.