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its not enough to build eurorack modules, a TTSH or a DDRM and you´re able to build a VCS3 Clone - because the VCS3 is an oldscool device - very much wires wiring and no instruction which cable you have to attach at first..
But yes there´s only a wiring scheme available . which helps you.(a friend works on a different version with Control PCBs for less wiring, but the planned release is not before mid 2019)
to troubleshoot/repair this device you need a correct wiring, no missing or wrong parts placement..
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