Discussion about the Korg PolySix synthesizer

Old Crow has a lot of information on his site regarding the P6 
servicing including the service manual, which includes all 
initializing/clibrating procedure. It also has a nice article of 
which chip commonly get defected on vintage synth and such.

You can check volatges to see if anything is wrong, as a start. 


--- In PolySix@yahoogroups.com, "dotwav" <rob19@e...> wrote:
> Further to my recent question about warming up time. Anyone know 
> what is the chip that is affected by the warming up, (or does this 
> depend on what problem someone might be having).
>  My P6 takes a good few hours (at least 2) to warm up. I get sound 
> out of it straight away, but I can't get any editing done. In the 
> first couple of hours, the VCF and EG sections do nothing. They do 
> respond once it's warmed up, but can't do anything until then. 
(when 
> I say they respond, the cutoff and res make a different tonal 
> change, but I wouldn't say they were working to their full ranges.)
> So, I'm thinking, is there any chip (or chips) I can replace to 
help 
> remedy this.
> I had to change a SSM2056 recently, I'm wondering should I have 
> changed all 6 at the same time. (The 6 that were in it, all had a 
> number on (other than the 2056), that were the same, now 5 are the 
> same and one is different (obviously the replaced chip), does this 
> make much difference.
> 
> Finally, I have to ask again, coz I didn't get much response last 
> time, is there anyway this can be calibrated or re-initialized if 
> serviced.
> 
> Thanks if anyone can help....   Rob