SwissMicros Announces DM41X Launch

[Dave Britten]

(10-14-2020 08:59 PM)grsbanks Wrote:  That the domes would need to be replaced was never in doubt. What is in doubt is whether that's all that needs replacing and whether the front case with the keyboard and it's slightly different keys would also need to be replaced. To figure this out I put a production unit's PCB first into a DM41X Beta unit and then into an older DM42. The improvement is already significant without replacing the keyboard, which is just as well because replacing the keyboard also means transplanting the LCD and glass screen. To get those out you need to twist them to get them unstuck and I can just imagine dozens of irate customers e-mailing in saying "you told me to twist the calculator to get the parts out and they broke!"

When I replaced the LCD in my 2017 DM42 (damaged ribbon cable), there was no twisting required. If you remove the PCB, you'll see four slots on the left and right sides of the screen. Use the bluntest object that will fit in those slots to gently push the glass outward from the rear. Don't know if the case design has changed to eliminate those slots, as I haven't opened up my 41X yet. The LCD swap was a cinch, in any case.