Still looking for HP-41C/CV/CX HalfNut Schematics

[GreyUser]

I have an original dvd from the TOS, the image on my disk is a combination of 1 & 2 in your post. Appendix VII is not in the index but the section is in the scan without the schematics.

I would be willing to bet the schematic never made it into general distribution as HP considered it a non-repairable assembly, it was replacement only so there was no need for the schematic to be in the public domain. The only differences between the models was the CX clock module, where the extended memory resides and the two different LCD driver modules due to the memory size differences of the CX/CV and the C.

Other than those bits of information, it’s probably a very dull and boring schematic. There’s not much there that cannot be gleaned from the available schematics.

Personally, I’ve never seen a schematic and I’ve never needed one to repair a unit, at least to the extent a halfnut can be repaired.

Why the search? What do you need/want to know?