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Korg DS8 workaround or fix

 
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splinters
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Joined: 14 May 2011
Posts: 300

PostPosted: Thu Jul 12, 2018 2:05 pm    Post subject: Korg DS8 workaround or fix Reply with quote

I recently acquired a sorry looking DS8 which I have restored to its former glory (as much as you can for a 32 year old synth). I stripped it down, cleaned everything and the only part not working is the Up/Yes button. I suspect it’s the micro switch but no idea why as every other switch works perfectly. I would rather not get the soldering iron out and can navigate everything except saving a patch or combi which asks if you are sure. As I can’t press Yes I can’t save rendering it pretty useless.
Is there any other way of saving or, failing that, anyone know where I can get a new microswitch?
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splinters
Senior Member


Joined: 14 May 2011
Posts: 300

PostPosted: Thu Jul 12, 2018 2:47 pm    Post subject: Reply with quote

Just noticed a UK repair store selling all the control boards (untested) for £10 delivered. At worst I could get a few switches off those presuming the boards don’t work perfectly fine. Plan B, is there any way of writing patches without the Yes button?
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voip
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Joined: 27 Nov 2014
Posts: 1651

PostPosted: Thu Jul 12, 2018 9:38 pm    Post subject: Reply with quote

If only one button fails to work, the chances are the switch contacts of that button are not connecting properly. It could be dirt on the contacts, or a broken contact. Either way, switch replacement is the way to go. There are 33 of them in the DS8, and another board could be used as a donor. Alternatively, Mouser sell them - search for Mouser part: 688-SKHHAJ.
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splinters
Senior Member


Joined: 14 May 2011
Posts: 300

PostPosted: Thu Jul 12, 2018 10:03 pm    Post subject: Reply with quote

I ordered the boards but thanks for the tip.
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Casio PX-5S, Korg TR76, Korg Volca Bass, Beats, Keys and Sample. Korg Nanokeys2. Ipad Air with Korg iMS-20, Gadget, Electribe, Polysix apps. Macbook Pro 15 with Logic X and Korg classic keys.
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splinters
Senior Member


Joined: 14 May 2011
Posts: 300

PostPosted: Sat Jul 14, 2018 1:46 pm    Post subject: Reply with quote

Well, boards came and for some reason the supplier decided to offload all their remaining DS8 stock so I got a main board, three control boards, the card reader and a spare LCD.
Popped the control boards in and everything works perfectly. Next job will be to fit a battery holder and a new battery so it has a bit more life expectancy.
Thanks for the top on the microswitch, may get one and repair the removed board so I have a spare.
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Casio PX-5S, Korg TR76, Korg Volca Bass, Beats, Keys and Sample. Korg Nanokeys2. Ipad Air with Korg iMS-20, Gadget, Electribe, Polysix apps. Macbook Pro 15 with Logic X and Korg classic keys.
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