DM42 early units vs. current?

[trojdor]

(09-11-2020 01:39 AM)johanw Wrote:  I recently got a DM42 (SN 05370) and have noticed no problems with stiff or non responding keys. So they might have improved the production process here.

No, I think you just got lucky.
I have an even later DM42 (SN 05401) than yours, and the keyboard on it is a complete nightmare.
I tried cleaning the contacts, and flexing the buttons, but if anything it seemed to have made things worse.
SwissMicros was kind enough to send me a new plastic sheet of the contact 'domes' to try....but right now, it's just sitting. (Can't trust it for any important calculations.)


(OTOH and FWIW, the DM15L I have, has a perfect response rate .... I don't think it's ever missed a keystroke.)