updated 02/2026
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confirmed the bug - listed below
https://modwiggler.com/forum/viewtopic.php?t=258389
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confirmed the bug - listed below
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IC3 is a CD4049UBE from TI too and involved.
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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Bugfixes (Mainboard marked Rev 2.007, Firmware Rev 2.003Beta)
update 02/2026 - not required - just try different brands
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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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