HP 41C DOES NOT BEEP

[Geoff Quickfall]

it is a rarity as was explained years ago as it is a repair of a fullnut with a halfnut that does not contain the 41CX mini board. I had my keyboard replaced twice on my 79 41C and all they did was give me a new 41C keyboard and reused my rear shell with the serial number. both repairs occurred before the halfnut was developed.

The halfnut you have is a fully dedicated 41C as indicated by the silver strips and with that in mind it is an original and rare 41C halfnut. The only difference being that it was a repair versus a retail version of which there were none documented.

therefore the only way to have a 41C halfnut is based on a repair in or out of warranty by HP. By 1983 most of the calcs were CVs and CXs so they did not prepare many of these boards.

I agree, don't touch it inside, if you need a CX then load up the modules!!..

Geoff