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DM41 keypad legend separating

Posted: Wed Feb 07, 2018 9:17 pm
by reavy
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?

Re: DM41 keypad legend separating

Posted: Wed Feb 07, 2018 9:26 pm
by Michael
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.

Re: DM41 keypad legend separating

Posted: Thu Feb 08, 2018 4:02 am
by reavy
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.

Re: DM41 keypad legend separating

Posted: Thu Feb 08, 2018 6:46 pm
by reavy
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.

Re: DM41 keypad legend separating

Posted: Thu Jan 17, 2019 11:22 am
by GBonne
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.

Re: DM41 keypad legend separating

Posted: Thu Jan 17, 2019 4:49 pm
by cdmackay
My DM16 does the same, has done since I got it…

Re: DM41 keypad legend separating

Posted: Thu Jan 31, 2019 7:09 am
by michel_b
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:

Re: DM41 keypad legend separating

Posted: Thu Jan 31, 2019 7:20 pm
by mezoganet
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

Re: DM41 keypad legend separating

Posted: Thu Jan 31, 2019 8:08 pm
by michel_b
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. :|

Re: DM41 keypad legend separating

Posted: Thu Jan 31, 2019 9:22 pm
by keithdalby
Looks more like a joke than an attack