Discussion about the Korg PolySix synthesizer

Thanks Andy,

I rechecked the connections and everything was good. The battery voltage was low, however, so I swapped in a new one. Now, the Octave switch and the Program 1 LED are back to normal. But, the VCA Attenuator is still not working. The switch tests good, and so do the diodes connected to it. I've also checked the verified the connections from DO3 to the KLM-367.

Where should look next?

-Alexis

--- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
>
> Hi,
> 
> Make sure line DO0 terminates at all the places on the schematic where it is
> supposed to (CN06, IC22, IC28, etc). The P1 LED will light on active low, so
> that suggests this line is disconnected! Also make sure the latch input to
> IC28 (P24, pin 5) is connected to the CPU. This track runs right underneath
> where the battery spill usually occurs. Let us all know how you get on.
> 
> Cheers,
> Andy
> 
> 
> On 26/01/2011 05:19, "Alexis V. Rogers" <alexis.v.rogers@...> wrote:
> 
> >  
> >  
> >  
> >    
> > 
> > I have a PolySix that suffered from battery leakage that I'm trying to bring
> > back to life for a friend. This is the fourth or fifth P6 I've worked on in
> > the past year. It had the least amount of battery damage but has taken the
> > most work. 
> > 
> > Anyway, here are my unresolved issues. The Program 1 LED is always on, the VCA
> > attenuator doesn't work, and neither does the Octave switch. Any help?
> > 
> > Thanks,
> > Alexis
> > 
> >  
> >    
> > ]
> 
> 
> 
> [Non-text portions of this message have been removed]
>