[sdiy] Repair part question, Korg DDM-110/220 buttons

[Benjamin Tremblay]

Yes, here it is. https://www.polynominal.com/repair/korg-ddm220/

And I had a Korg DDM-110 for several years with multiple cats, never had a problem.

Benjamin

> On Jul 13, 2024, at 11:12 AM, grant musictechnologiesgroup.com <grant at musictechnologiesgroup.com> wrote:
> 
> Link?
> 
> 
> ------ Original Message ------
> From "Benjamin Tremblay via Synth-diy" <synth-diy at synth-diy.org>
> To "synth-diy mailing list" <synth-diy at synth-diy.org>
> Date 7/13/2024 6:37:57 AM
> Subject [sdiy] Repair part question, Korg DDM-110/220 buttons
> 
>> Hi, I got me a Korg Super Drums off eBay.
>> It looks just like the one I had in 1985 before I went crazy with the soldering iron and circuit bent the clock.
>> It was DOA. I was about to give up on it when I noticed hairline cracks around one screw hole in the board. Was able to fix them and then it booted up properly.
>> But it still seemed dead. Until I almost accidentally closed one of the switch contacts with a tool, and it responded. (In fact it’s so snappy I could be lazy and trigger the switches with MIDI via 4066 ics and it would probably respond at a high speed.)
>> 
>> Looks like very fine hair and dust, like Persian cat dander, is coated around the knobs and switches.
>> So anyway I found this link on polynomial showing how to crack the switches apart and clean them with a q-tip. I have some black goo I used to permanently fix an Alesis MMT-8 and so I intend to coat the rubber contacts with this good stuff.
>> 
>> But just wondering: Does anyone know what kind of switch this is? (See photo on polynomial Repair Blog). To me it looks too good to not be an Alps, but it’s not a keyboard switch, is it?
>> Whatever it is it’s kinda cool, as long as you don’t have cats.
>> 
>> It seems like a lot of these kinds of parts have vanished from the storage bins and there’s nothing that would take its place.
>> 
>> Ben
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20240713/d3fac5be/attachment.htm>