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Vintage Synth Repair

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Yamaha CS-30 EG3

2006-12-06 by Miguel Mendoza

Hello group, does anybody know how the Envelope Generator 3 work in a Yamaha CS-30? I'm not sure if it's working properly here. When assigning it to the VCAs, the synth doesn't emit any sound. If I assign it to the VCF I can notice a very little effect moving the decay stage. It seems like it's producing a low voltage.
Any idea or comment will be very apreciated.
Thanks!
Miguel.

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