Sequential Circuits Pro One - power to pcb but audio has issues

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Dancedance
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Joined: Fri Jul 03, 2020 2:21 am

Sequential Circuits Pro One - power to pcb but audio has issues

Post by Dancedance » Fri Jul 03, 2020 2:31 am

Hey there,

I'm a Pro One owner - I recently fixed it's keybed and troubleshooted the power components to get power to the pcb. Now I have trouble with audio. When I turn it on it has an audible hum that isnt coming from the drone function. Keys only produce light thud sounds, sortof like a kick drum. Not any of the dials seem to change anything about the audible noises I'm able to get from it.

The gate and memory banks light up the red light and the keys do as well when pressed. There's no audible functionality from them though.

Does any have any idea what could be going on?

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