Upgraded keypad

If you're having problems with the hardware of a DM41X or DM42, post about them here.
gopper
Posts: 21
Joined: Tue Mar 05, 2019 11:18 am

Re: Upgraded keypad

Post by gopper »

I've placed the new domes two days ago.

At first, I was a bit worried because the domes were not totally aligned with the PCB (yes I followed the video instructions to the letter), but seems that everything went well (in fact, the old domes were also a bit misaligned).

Anyway, now the keypad does not miss a keystroke. It's a bit noisy (a high-pitched click noise) but no problem with that (no need to buy another calculator until the DM48 :roll:).
Boub65
Posts: 231
Joined: Tue Sep 12, 2017 4:34 pm
Location: Rabat, Morocco

Re: Upgraded keypad

Post by Boub65 »

I've placed my order on September the 17th, the domes/foil where shipped on the 20th, received in Morocco (so "in galaxy far far away") today the 28th!

As soon as I received the enveloppe from SM, opened it, opened the DM42... and 15 minutes after the domes/foil where changed (exactly like in Michael's video) and I have a really (but really) great keyboard ❤️❤️❤️

Thank you Michael, the feel of the keyboard is now excellent. It clicks "firmly", we hear the click, it but it is not loud... Every key has the same feel also... that's the best way I found to describe the feeling of the new keyboard.
IMG-20220928-WA0016.jpg
IMG-20220928-WA0016.jpg (209.88 KiB) Viewed 2558 times
Sincèrement, Sincerely, 73,
Boubker

DM15L, DM41L, DM42 #00855 (domes upgraded), DM41X #00707
HP48SX (with dark screen), HP42s, HP32SII (1990 with fraction bug), HP41C/CV
TI-89 titanium, CASIO fx-cg50 and Numworks (to play with micropython)
redglyph
Posts: 177
Joined: Sat Dec 22, 2018 11:45 am

Re: Upgraded keypad

Post by redglyph »

Glad to hear it went smoothly!
Boub65 wrote:
Thu Sep 29, 2022 12:50 am
I've placed my order on September the 17th, the domes/foil where shipped on the 20th, received in Morocco (so "in galaxy far far away") today the 28th!
That's quick!

The 2nd attempt for mine was shipped on September 15th and I'm still waiting for it, though Belgium isn't far from Switzerland. I bet customs are being overzealous as usual. So peculiar that a country in Schengen area isn't in the EU Customs Union.
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48GX
Posts: 180
Joined: Wed May 20, 2020 4:37 am

Re: Upgraded keypad

Post by 48GX »

I am waiting on my Alcohol and Goo Be Gone.
Waiting for SM to release DM42 hardware with one additional row of keys.
DM42, DB48X, DM32, HP42s, DM41X, HP35s, DM41L
Raising a next generation RPN/RPL user.
Boub65
Posts: 231
Joined: Tue Sep 12, 2017 4:34 pm
Location: Rabat, Morocco

Re: Upgraded keypad

Post by Boub65 »

48GX wrote:
Thu Sep 29, 2022 6:29 pm
I am waiting on my Alcohol and Goo Be Gone.
I just used denatured 70% alcool we use to scrub our hands since the start of the pandemia.
Sincèrement, Sincerely, 73,
Boubker

DM15L, DM41L, DM42 #00855 (domes upgraded), DM41X #00707
HP48SX (with dark screen), HP42s, HP32SII (1990 with fraction bug), HP41C/CV
TI-89 titanium, CASIO fx-cg50 and Numworks (to play with micropython)
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ijabbott
Posts: 253
Joined: Fri Dec 15, 2017 2:34 pm
Location: GB-MAN

Re: Upgraded keypad

Post by ijabbott »

48GX wrote:
Thu Sep 29, 2022 6:29 pm
I am waiting on my Alcohol and Goo Be Gone.
Mine came off cleanly, but I rubbed it with IPA anyway.

I still have a problem with the right side of the ENTER key feeling slightly mushy compared to the left side. I might have to resort to the "stick bits of post-it notes on the right ENTER dome" fix again, but I'd rather not remove the PCB from the case again, mainly because the clamp on the display connector no longer remains attached after undoing the clamp. Last time, it pinged across the floor and landed under the sofa!
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Dan Simpson
Posts: 104
Joined: Wed Mar 18, 2020 3:29 pm
Location: Arizona

Re: Upgraded keypad

Post by Dan Simpson »

DM-41X Beta and DM42 keypad upgrades completed with no issues.
Thanks, SM!
My Collection: HP-55, HP-67 (Teenix Mod), HP-15C, HP-16C, HP-41CV, HP-41CX, SY41-CL, DM41X, DM42, HP-42S, HP-48G, HP-71B, HP-75C, HP-86B.
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pcscote
Posts: 169
Joined: Tue May 02, 2017 12:12 pm
Location: Québec/Canada

Re: Upgraded keypad

Post by pcscote »

pcscote wrote:
Wed Aug 31, 2022 7:21 pm
Thanks!
What a nice surprise.
I just placed an order to replace the domes of my old DM42 and my DM41X beta.
The icing on the cake, after seeing the video it seems to be super easy to do the replacement.
Sylvain
I just successfully replaced the domes of my two calculators.

Keyboard selftest was successful and the keys are now correctly registering.
The individual that choose the DM41X keyboard selftest key order was not on his best day at the time. :roll:

Code: Select all

+ -- + -- + -- + -- + -- + -- + 
| 38 | 39 | 40 | 41 | 42 | 33 |
+ -- + -- + -- + -- + -- + -- + 
| 01 | 02 | 03 | 04 | 05 | 06 |
+ -- + -- + -- + -- + -- + -- + 
| 28 | 08 | 09 | 10 | 11 | 12 |
+ -- + -- + -- + -- + -- + -- + 
|   13    | 14 | 15 | 16 | 17 |
+ -- + -- + -- + -- + -- + -- + 
|  32 |  19 |  20 |  21 |  18 | 
+ --- + --- + --- + --- + --- +
|  37 |  24 |  25 |  26 |  23 | 
+ --- + --- + --- + --- + --- +
|  27 |  29 |  30 |  31 |  43 | 
+ --- + --- + --- + --- + --- +
|  22 |  30 |  31 |  07 |  36 | 
+ --- + --- + --- + --- + --- +
Thank you Robert, Godwin, Michael and David for your efforts to solve this issue.

Sylvain
[DM1x/DM1xL/DM41/DM41L/DM41X/DM42]
rprosperi
Posts: 1698
Joined: Mon Apr 24, 2017 7:48 pm
Location: New York

Re: Upgraded keypad

Post by rprosperi »

Michael really deserves 100% of the the credit here....
--bob p

DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
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48GX
Posts: 180
Joined: Wed May 20, 2020 4:37 am

Re: Upgraded keypad

Post by 48GX »

Two calculators are now updated. What a difference that made.

What is the discount code in the domes for? Is that a 10 CHF discount on the store?

*Typo corrected for Walter
Last edited by 48GX on Sun Oct 02, 2022 12:53 am, edited 1 time in total.
Waiting for SM to release DM42 hardware with one additional row of keys.
DM42, DB48X, DM32, HP42s, DM41X, HP35s, DM41L
Raising a next generation RPN/RPL user.
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