Discussion about the Korg PolySix synthesizer

Are you refering to the trimpot on the computer board ?

I don't know very much about it but on my Trident it did the same 
when I set it to a cetrain position. This is how it was when I first 
got it - powered it up and all banks/presets lite up. By ritating the 
trimmer a bit it booted up correctly finally (bank 1 / preset 1)


--- In PolySix@yahoogroups.com, "u3dreal" <u3dreal@y...> wrote:
>
> Hello all;
> 
> I bought a polysix in rather bad condition...
> 
> I did the batteryreplacements and checked to circuits...they seem to
> be OK for both sides of teh PCB 
> ...many things were still wrong then I replaced the IC31...and the 
octave 
> knob and the sub osc were working again.
> 
> The Controls are better now but still don't work correctly..
> 
> the MG....Delay doesn't work at all and Level gets controlled by the
> VCO PW/PWM knob...? the EG doesn't seem to work either..
> only the sustain can be controlled via the LFO resonance knob..
> 
> all the other things like the preset section / loading saving 
progamms
> or even sending and receiving banks form external casset recorder
> works....!!!!!
> 
> when i try to do the testing procedure with the 56k resistor...the 
> following happens.....when i turn the trim clockwise there is a 
point 
> where is jumps from bankA prog1 to all eight proglights.....this 
doesn't 
> happen 
> for me the two first ( prog 1+2) don' light...sometimes 
> its only the first one which doesn't light...
> when i remove the resistor it switches back to prog1 bankA
> 
> I have no idea what could be wrong...could it be IC30 or even the 
> processor ?? Did you have something simlar ? 
> 
> How much would a new proc cost?
> 
> I really would aprichiate it a lot if you could give me some 
advice...
> 
> 
> thanks in advance
> 
> Gregor
>