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Vintage Synth Repair

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Ensoniq SQ-80 filter on one voice not reacting

2016-12-17 by nuwavboy@...

Hello everyone -


I have an SQ80 that has lost resonance on one voice - I've swapped the CEMS and the problem stays with the same voice, so its not the chip. When I run the filter calibration routine one of the voices comes up zero instead of between 145-155.


Thoughts on where to look?


thanks in advance

tom

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