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geekhack Projects => Making Stuff Together! => Topic started by: bcredbottle on Tue, 04 August 2015, 14:04:53

Title: Key often doesn't register or repeats
Post by: bcredbottle on Tue, 04 August 2015, 14:04:53

I just built an Ergodox and often the "L" key will either not register at all, or will register 2-3 times even though I only tapped it once. Does anyone have an idea about possible causes?

Title: Re: Key often doesn't register or repeats
Post by: SpAmRaY on Tue, 04 August 2015, 14:06:15

First thing to try is to reflow that one switch. Maybe post some good pictures of that area on the PCB.

Title: Re: Key often doesn't register or repeats
Post by: CPTBadAss on Tue, 04 August 2015, 14:06:28

Could be a bad switch. Could be a bad solder joint.

Get a multimeter and test the joint. If the joint is good, try swapping the switch.

Title: Re: Key often doesn't register or repeats
Post by: bcredbottle on Tue, 04 August 2015, 14:12:01

Quote from: SpAmRaY on Tue, 04 August 2015, 14:06:15

First thing to try is to reflow that one switch. Maybe post some good pictures of that area on the PCB.

Reflow? Does that mean just re-solder?

Title: Re: Key often doesn't register or repeats
Post by: CPTBadAss on Tue, 04 August 2015, 14:13:23

Quote from: bcredbottle on Tue, 04 August 2015, 14:12:01

Quote from: SpAmRaY on Tue, 04 August 2015, 14:06:15

First thing to try is to reflow that one switch. Maybe post some good pictures of that area on the PCB.

Reflow? Does that mean just re-solder?

Yes

Title: Re: Key often doesn't register or repeats
Post by: bcredbottle on Tue, 04 August 2015, 14:40:13

I turned over the board and I think I found a clue. While I can't be sure, I believe this is a possible cause of the issue:

(http://i.imgur.com/DpCxp5V.jpg?1)

It seems that I forgot to solder that joint.

 :llama:

Guess I missed that!

Thank you guys for your expertise.