The LED does light on that voice. I checked voltages on IC35 and Q5 as you suggested and found two discrepencies with the other working voices. I'm measuring -1.495V on pin 1 of IC35 on the problematic voice, where I get -0.02ish on pin 1 on the working voices. Also, I'm getting -1.2V on the base of Q5 where I'm getting around -0.02V on the bases of Q5 on every other voice.
--- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
>
> Hi,
>
> When you switch to EG mode does this non-sounding voice still light the LED?
> As a generic answer, you might want to perform some comparative measurements
> around bi-lateral switch IC35 and around emitter follower stage Q5 with the
> other working voices. My guess is that there is a problem somewhere in this
> vicinity.
>
> Good luck and don¹t forget to tell us how you get on.
>
> Cheers,
> Andy
>
>