HP-48GX key stiffness

[franz.b]

(03-27-2021 07:45 PM)anyfoo Wrote:  Thanks, that's the instructions I already found and followed. And I still managed to butcher it, effectively. HP really, really did not mean for those things to be opened.

In the end, I'm not too sad about it, because it turns out that while the board is fine (and I saved it), the keyboard assembly was almost fully soaked in leaked battery gunk, which is almost certainly the problem anyway.

A broken board I could probably have repaired, a broken keyboard assembly less so, especially since it seems to be another unopenable sandwich.

But this makes me wonder whether I should ever buy another HP-48 series to repair, since I'm obviously not convinced I can open it without at least some cosmetic damage. I successfully repaired an HP-15c without issue, and it is now my "daily driver" besides my working HP-48GX. And that latter one will be left unopened forever.

I have opened and repaired a 27s that has the keyboard made in the same way, and it is repairable.
https://www.hpmuseum.org/forum/thread-16265.html