MATRIXSYNTH: YAMAHA CS-30 Vintage Analog Monophonic Synthesizer w/ Hard Case SN 3141


Thursday, April 24, 2014

YAMAHA CS-30 Vintage Analog Monophonic Synthesizer w/ Hard Case SN 3141

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"The unit appears to be working reasonably well, but an issue I noticed is that VCO2 seems like its only making small output level compared to VCO1. I'm pretty sure it was fine when I first tested, but when I tried playing again after a couple of days, the VCO2 level was becoming a lot smaller somehow and I'm not sure what caused this. The sound changes when you change settings on VCO2, VCA2 and VCF2 knobs, so I guess it could possibly be some simple servicing or adjustment needed for the VCO2 output.

Otherwise, all the keys and knobs and sliders appear to be working fine as I tested accordingly to the owner's manual. The Sequencer section was fine too."


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