DM42 stack layout

[Geoff Quickfall]

1). Beta version of the DM42. There are two holes in the back of the case (RESET. PGM) versus the production version (RESET only). From the date on the YouTube video also a beta version of the software. That display was removed as the double XY stack display was considered redundant.

2). Different silk screen yellow (duller) then the production version.

3). Same key hardware as the production version.

I have both the beta test unit #87 and production unit #885. I am reticent to re-install back dated beta software but I have all versions of the beta software on file.

The nice thing is the yellow key is solid yellow, unlike the DM41X beta versions which have a painted yellow key.

The nice thing about the production version of the DM42 is the yellow script matches the yellow key colour.

I never had and issue with my keys on the beta or production versions on the DM42 or the DM41X. However some have and it is down to the position of the domes when installed at the factory. If they are shifted a silly mm out (benson and hedges cigarette reference for you oldies) they do not contact as well as they should.

There are many fixes including removing and reinstalling the dome strips or contacting Swiss Micros.

At the moment I am testing the DM41X but the DM42 is a beautiful machine, it is just that I grew up on the 41C/CV/CX and it too, is fantastic.

Geoff

Quick edit for the additional post.

The micro USB port may be canted, another manufactory fault. This can be fixed by shaving the cable not modifying the calculator! There are some good quality USB cables which have longer insertion portion of the male end (there is a joke there) but it is an easy fix to shave plastic off the male end of the USB cable.