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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

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Re: Roland MC-4 issues with CV Output

2013-07-06 by monads

Thanks Scott.  I'll take a look.  I can confirm it's not the power supply lines.  There is an onboard oscillator (Toyocom 8.0000) but I don't think it's the issue as it's purpose is not used in the CV outputs upon examining the service manual.  I could be wrong though.

monads

--- In vintagesynthrepair@yahoogroups.com, scott frye <painintheamp@...> wrote:
>
> Check ALL power supply lines to see if they are stable FIRST.
> 
> Check oscillator stability anywhere there IS one.
> 
> Either one of those may give you a clue
> 
> -- 
> Scott Frye
> 
> Audio-fixation.net
> 
> Vermont
>

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