Opening HP41 Modules


I have a 82242A (IR Module) that I suspect of being partially dead.

Whilst I don't intend to open it up until I'm certain it's really failty, I am interested in how I might go about opening it.

It's not as simple as a screw under the label on the bottom is it? (I can't imagine it's going to be that easy)


The modules are ultrasonically welded. To open, insert long nosed pliers into the contact slot on each side (avoiding contacts) and open slowly. IR modules are cheap enough, why not buy another?

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