DM41 keypad legend separating

Discussion of hardware issues related to the DM1x/DM41. Please ensure that you specifiy whether the issue is related to a credit card size unit or a "Voyager" unit (DM1xL/DM41L).
reavy
Posts: 22
Joined: Tue Feb 06, 2018 8:08 pm
Location: Phoenix, AZ

DM41 keypad legend separating

Post by reavy » Wed Feb 07, 2018 9:17 pm

I've noticed that the keypad legend on my DM41 (small size) is separating in the middle near the Enter key. It bubbles up and makes an audible unsticking sound after any keys are pressed in that area.

Anyone else have an issue like this?

Michael
Site Admin
Posts: 236
Joined: Wed Apr 05, 2017 9:31 pm

Re: DM41 keypad legend separating

Post by Michael » Wed Feb 07, 2018 9:26 pm

Use a hairdryer to heat it up for a few minutes then put some weight on it for several hours and it should be gone.

reavy
Posts: 22
Joined: Tue Feb 06, 2018 8:08 pm
Location: Phoenix, AZ

Re: DM41 keypad legend separating

Post by reavy » Thu Feb 08, 2018 4:02 am

Hi Michael,

Thanks for the reply. I did as you suggested with an adjustable heat gun and am letting the calculator sit overnight in a clamp. I'll check it in the morning.

reavy
Posts: 22
Joined: Tue Feb 06, 2018 8:08 pm
Location: Phoenix, AZ

Re: DM41 keypad legend separating

Post by reavy » Thu Feb 08, 2018 6:46 pm

After letting it sit overnight in the clamp and after using the heat gun, it stayed stuck on for about an hour and then came off.

GBonne
Posts: 3
Joined: Sun Jan 13, 2019 8:09 pm

Re: DM41 keypad legend separating

Post by GBonne » Thu Jan 17, 2019 11:22 am

On my DM15 (same layers, different print/firmware) the keys make a sticky un-sticking sound, from the first day on. It is really like a worn sticker that is removed from a glossy surface at each keypress.

After reading this post I tried the hairdryer trick but it does not work for more than a few minutes.
I have no separation between two keys yet, but my unit is very recent.

Is this un-sticking noise normal?

I chose the "credit card" format vs the DM15L becasue I wanted to introduce the joys of RPN in a very small for my child and let her take it at school when she becomes old enough. Maybe I should have chose the DM15L instead after all.

cdmackay
Posts: 87
Joined: Fri Oct 05, 2018 6:33 pm
Location: Cambridge, UK
Contact:

Re: DM41 keypad legend separating

Post by cdmackay » Thu Jan 17, 2019 4:49 pm

My DM16 does the same, has done since I got it…
Cambridge, UK
41CL 12/15C DM15/16 71B 17B/BII/bII+ 28S 42S/DM42 48GX 50g 35s 30b/WP34S Prime G2
& Casios, Rockwell 18R :)

michel_b
Posts: 27
Joined: Wed Jan 30, 2019 9:07 pm

Re: DM41 keypad legend separating

Post by michel_b » Thu Jan 31, 2019 7:09 am

Hello,

I suffer the same from my new DM-15 : And unpleasing (and somewhat worrying) “unsticking” sound at each keypress release.

I was advised by Michael to heat the keyboard with a hair dryer then somewhat compress the device for a while, but I didn't dare to do so and fry the PCB, CPU and LCD... And I wasn't sure it would result in something better. In France we have a proverb that says : « Better is the ennemy of good » ;)

Also I thought a brand new machine shouldn't need such a nasty trick... But here I read that it's the same for different people, so well... I'll consider it's not a “bug” but a “feature” of my DM-15 :roll:

mezoganet
Posts: 49
Joined: Tue Jan 22, 2019 12:54 pm
Location: Tours, France

Re: DM41 keypad legend separating

Post by mezoganet » Thu Jan 31, 2019 7:20 pm

michel_b wrote:
Thu Jan 31, 2019 7:09 am
Hello,
...
I was advised by Michael to heat the keyboard with a hair dryer then somewhat compress the device for a while, but I didn't dare to do so and fry the PCB, CPU and LCD...
My advice of the day would be : if you are bald, this device is not for you :D
HP33E, HP34C, HP41C, HP16C, HP28S, HP42S, HP48S, HP12C, HP35S, DM42, DM41L, DM15L and HP3000 @ work during 18 yrs as IT Mgr

michel_b
Posts: 27
Joined: Wed Jan 30, 2019 9:07 pm

Re: DM41 keypad legend separating

Post by michel_b » Thu Jan 31, 2019 8:08 pm

mezoganet wrote:
Thu Jan 31, 2019 7:20 pm
My advice of the day would be : if you are bald, this device is not for you :D
Day 2 on the forum, 1st “ad hominem”. uh. Not going into this. :|

keithdalby
Posts: 544
Joined: Mon Apr 24, 2017 6:38 pm

Re: DM41 keypad legend separating

Post by keithdalby » Thu Jan 31, 2019 9:22 pm

Looks more like a joke than an attack

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