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The OP-1 is a portable music workstation incorporating a synthesizer, sampler, sequencer, multitrack recorder, drum machine, mixer, and controller. It was released in 2011.

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Why is my volume knob stuck at one volume?

Hey there,

My OP-1 Just stays at one volume. The knob that controls the volume stays at the loudest even if I turn it all the way down. Not totally sure what to do, or how to repair.


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Hy kapptv,

I had the same issue from time to time. Also, the power on/off switch was behaving weirdly. After exchanging the connector board, the volume knob failure disappeared aswell. Maybe that helps.

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kappytv will be eternally grateful.
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