buttons that don't register well

If you're having problems with the hardware of a DM42, post about them here.
grsbanks
Posts: 664
Joined: Tue Apr 25, 2017 9:23 am
Location: Preston, Lancs, UK

Re: buttons that don't register well

Post by grsbanks » Wed Dec 20, 2017 7:07 pm

No, the screw is visible from the other side of the PCB and holds the PCB in place in the casing.
Not SwissMicros staff, just an enthusiast.

zooropa1844
Posts: 12
Joined: Sun Aug 27, 2017 10:17 pm

Re: buttons that don't register well

Post by zooropa1844 » Wed Dec 20, 2017 8:05 pm

Oh, thank you both of you. So it is not an specific screw which regulates the behaviour of the Enter key but the two ones attaching the PCB to the case. I misunderstood the whole thing.

Since there is no need to release the LCD cable, nor to remove the foil I'll give it a try.

Kind regards

etn
Posts: 13
Joined: Sun Dec 10, 2017 1:14 pm

Re: buttons that don't register well

Post by etn » Thu Dec 21, 2017 9:35 am

I had the same issue with my "8" key... cleaning up the internals did the trick too.

Happy Xmas time to you all!

keithdalby
Posts: 483
Joined: Mon Apr 24, 2017 6:38 pm

Re: buttons that don't register well

Post by keithdalby » Thu Dec 21, 2017 10:20 am

I'm just concerned about peeling that clear plastic back. Will it rip? How many times can it be peeled back without loosing stickiness? How hard is it to align the domes? I am terrified of breaking it.

Dave Britten
Posts: 33
Joined: Wed Jun 14, 2017 7:27 pm

Re: buttons that don't register well

Post by Dave Britten » Thu Dec 21, 2017 1:34 pm

keithdalby wrote:
Thu Dec 21, 2017 10:20 am
I'm just concerned about peeling that clear plastic back. Will it rip? How many times can it be peeled back without loosing stickiness? How hard is it to align the domes? I am terrified of breaking it.
The keyboard layer is very thick plastic (in fact that may be contributing to the stiffness of the keys; not sure). As long as you don't fully remove the whole sheet, realignment isn't an issue, since you won't be able to rotate/slide it at all.

zooropa1844
Posts: 12
Joined: Sun Aug 27, 2017 10:17 pm

Re: buttons that don't register well

Post by zooropa1844 » Thu Dec 21, 2017 2:13 pm

Can anybody check if it is normal that the plastic layer of the keyboard is missing some of the small sticking out cylinders which fit into the holes on the PCB?

This is a photo of mine. https://ibb.co/dJ6uvR When I fit the PCB onto the keyboard yesterday I noticed some of them were missing.

Kind regards,
Javier

gruensucher
Posts: 10
Joined: Thu Sep 28, 2017 7:05 pm
Location: Deutschland

Re: buttons that don't register well

Post by gruensucher » Fri Dec 22, 2017 6:41 pm

@Walter
Der Bremsenreiniger entfernt alles recht gründlich von Fetten und anderes, es enthält kein Aceton!
Gerade weil es für Bremsen sind, Bremsen darf kein Öl oder ähnliches enthalten.
Kann Kunststoffe angreifen, habe aber nur die Metallkuppeln , Stichwort Metall, gereinigt.

Sorry, i can read english good, write very bad! ;-)
Excuse me, Walter.

Back to english ;-)

@keithdalby
Make ribs the plastic film off, it is quite tough. ( stiff ? )

dirk

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Walter
Posts: 726
Joined: Tue May 02, 2017 9:13 am
Location: Close to FRA, Germany

Re: buttons that don't register well

Post by Walter » Fri Dec 22, 2017 9:34 pm

gruensucher wrote:
Fri Dec 22, 2017 6:41 pm
Der Bremsenreiniger entfernt alles recht gründlich von Fetten und anderes, es enthält kein Aceton!
Gerade weil es für Bremsen sind, Bremsen darf kein Öl oder ähnliches enthalten.
@gruensucher:
Darf ich mal nach deiner Muttersprache fragen? Deutsch scheint sie auch nicht zu sein...
gruensucher wrote:
Fri Dec 22, 2017 6:41 pm
Make ribs the plastic film off, it is quite tough. ( stiff ? )
Was wolltest du uns sagen?? Ich möchte es ja bloß verstehen.
DM42 SN: 00041 --- Follower of Platon.

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

keithdalby
Posts: 483
Joined: Mon Apr 24, 2017 6:38 pm

Re: buttons that don't register well

Post by keithdalby » Sat Dec 23, 2017 8:04 am

gruensucher wrote:
Fri Dec 22, 2017 6:41 pm
Back to english ;-)

@keithdalby
Make ribs the plastic film off, it is quite tough. ( stiff ? )
I, erm... I have no idea. Thank you?

ThomasA
Posts: 3
Joined: Wed Dec 27, 2017 9:30 am

Re: buttons that don't register well

Post by ThomasA » Wed Dec 27, 2017 9:41 am

Hello,
I checked my new unit and found that the key 8 does not show the clear 'click' when pressed.
I followed Michael's instructions taking photos of every step. After the 'surgery' the key works slightly better, but still a little bit different to its neighbours.

I could post the photographs (if someone tells me how to do that).

Thomas

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