[sdiy] Korg Volca Bass service manual

[Sean Ellis]

I found quite a few by searching the Korg part numbers for common parts, they are listed in the service manual and show up in google searches. For some reason scribd has a lot of technical documents, but almost everything is on Internet Archive for free. You can sometimes find behringer and other manuals by searching the pcb name/number. P0CQJ will give you the Model-D early revision schematics.

________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Jason Dickson via Synth-diy <synth-diy at synth-diy.org>
Sent: Friday, 30 October 2026 6:58 PM
To: Mike Beauchamp <list at mikebeauchamp.com>
Cc: SYNTH DIY <synth-diy at synth-diy.org>
Subject: Re: [sdiy] Korg Volca Bass service manual

Where does one obtain the service manuals for the volcas? Mine are aged now and I intend to redo all the button contacts rhat manual would be helpful

On Fri, Oct 30, 2026, 10:45 AM Mike Beauchamp <list at mikebeauchamp.com<mailto:list at mikebeauchamp.com>> wrote:
I wasn't expecting to see a service manual with full schematic for a
budget synth. Pretty impressed with Korg for doing this.. do they do
this for all of their modern synths?

Mike


On 2026-10-26 17:00, Sean Ellis via Synth-diy wrote:
> https://cdn.hackaday.io/files/1698407266434560/korg_volca_bass_sm.pdf
> <https://cdn.hackaday.io/files/1698407266434560/korg_volca_bass_sm.pdf>
>
> Not sure if this has been shared but here's the manual, as usual some
> interesting circuits from Korg. Schmitt-trigger in the VCO and a very
> low parts count on the VCF, not a trimpot on board! Has anyone heard one
> of these? I'd be interested in how the filter sounds.
>
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