updated 02/2026
confirmed the bug - listed below
Modwiggler Forum : https://modwiggler.com/forum/viewtopic.php?t=258389
confirmed the bug - listed below
I got a YOCTO 2 for a repair.
the voices wasn't triggered.
i swapped CD4051 IC114, IC111 to TI and it works. IC3 is a CD4049UBE from TI.
ST Versions wasn't working, in voice test mode -> no sound - > trigger was only 500mV
Build Documents
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All Fles are on github
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Be cautious of the 2SK30A's that are included with the kit. The suffix -Y and -GR refer to specific Idss ranges that are listed on the datasheet for that part. Invest in a transistor tester that can test Idss, or breadboard a circuit for it and test your 2SK30A's! There is one reported case already of the Idss ranges being wildly off.
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Issue 1: Accents not triggering drum voices in voices test mode (not only Accents)
The first issue involves the multiplexer for the accent signals going out to each of the various voice circuitry and triggering any of the drum voices to make a sound. If your Yocto 2 says that it's on and should be sending out sounds through any of the jacks and absolutely nothing is coming out, this is probably why.
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not from me are the following pictures: (not required wi
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