Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

Hi Andy,

Guess you´re right. Damn, no luck. Still no data out of pin 4! When trying to adjust the D/A, in Test Mode, the Program LEDs that light up are 4 and 8, and VR6 and 7 don´t do a thing.
In Normal Mode everything works as it should...

Well, my reasoning is that both VR6 and 7 are connected to pin 4 of the DAC, and subsequently I´m not reading anything out of IC27, the buffer, that should go into ICs 18 and 19. These two should "translate" incoming data into continuous voltage control, but there´s nothing arriving at them.
No response from tweaking the continuous controls such as Resonance and Effect Speed is the main problem of this synth.

So what do you think? Maybe this DAC is the real culprit?

Cheers,
Paulo