Need help with Black ALPS keyboard

patrickdesk

13 Apr 2016, 18:46

Hello everyone,

I got a no name left-handed black ALPS keyboard from an e-waste place. I only paid CDN $10.00 for it. It has black ALPS which seems clicky to me. I had a DELL AT101W in the past, but the keys were "quieter." Anyway, while I was very happy to have found this keyboard, my happiness was short lived. Some of the keys output more than one keystroke when pressed. Do you guys think it's a problem with the controller or with the switches themselves? Any help will be greatly appreciated.

jacobolus

13 Apr 2016, 20:57

Can you take a picture of the top of a switch, and another picture of the whole keyboard?

patrickdesk

13 Apr 2016, 21:00

jacobolus wrote: Can you take a picture of the top of a switch, and another picture of the whole keyboard?
I will after this weekend. A bit busy this week. I know it's kind of stupid from me to ask for help and then not in a hurry to fix the keyboard. But there is an important event in the life of my daughter this weekend. Also, I would like to clean the keyboard first. You just never know where keyboards from recycling places/thrift stores have been :-)

terrycherry

13 Apr 2016, 21:19

Maybe the problem is on the PCB trace or the IC got dirty. Desdolder the issue switches and take out the controller to clean the pin.
Your daughter have a dancing event? :P

patrickdesk

13 Apr 2016, 21:24

terrycherry wrote: Maybe the problem is on the PCB trace or the IC got dirty. Desdolder the issue switches and take out the controller to clean the pin.
Your daughter have a dancing event? :P
Well if it involves desoldering then I will have to enlist the help of my uncle. I just don't know how to desolder/solder.

No, she has her first communion. I don't want to get into a religion debate, but let's just say I am not really a believer anymore but her mother is. Happy wife...happy life.

patrickdesk

13 Apr 2016, 21:47

Image

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fohat
Elder Messenger

13 Apr 2016, 21:49

Now that is a rare duck for certain.

patrickdesk

13 Apr 2016, 22:04

I know. The left-handed keyboards I have seen have the numpad moved to the left without the keys rearranged. This one has the keys rearranged.

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Redmaus
Gotta start somewhere

13 Apr 2016, 22:05

Why aren't all left hand numpads like this? I don't understand why others aren't :|

jacobolus

13 Apr 2016, 22:16

Are you sure it’s Alps switches? If they’re clicky, with black sliders, I suspect it’s some kind of clone.

If the switches are chattery, that’s some combination of dirt / corrosion on the contacts or some dodgy traces or wiring, and/or a bad debounce routine in the firmware. If there’s dirt on the contacts, you can take the switch apart and blast it with compressed air.
Last edited by jacobolus on 13 Apr 2016, 22:19, edited 1 time in total.

patrickdesk

13 Apr 2016, 22:19

I used paper clips to pull the scroll lock keycap, and the word ALPS was written on it. It's not as clicky as say a Cherry MX Blue. I think it's the tactile bump that is producing the "click" sound. It could be a knock off. The travel feels relatively shoter than cream/orange/black ALPS.

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Chyros

13 Apr 2016, 22:38

They might be simplified Alps. There are clicky black simplified Alps. Those have the long tabs as well as the logo on it.

patrickdesk

13 Apr 2016, 22:53

They feel nice to type on, that's for sure. A bit loud though. Definitely not for office use.

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Chyros

14 Apr 2016, 00:20

If you can post a close-up picture of the switch, showing the lettering clearly, we should be able to identify it for you :) .

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