Hello everyone, This is my first post since installing the chip upgrade. I believe my 3P sounds a lot different since the upgrade and i see here it has to do with the tuning of the dco's. I assume my board was factory tuned with an oscilloscope and might need to be adjusted now? If i use the DCO 2 fine tune to lock in there is still some phasing and it has to be timed with the slider perfectly, still then it goes out of phase eventually.

Have you tried to tune the DCO? I am curious about this process and if it will get me the "FAT" back!

Thanks, Quentin

--- In kiwitechnics@yahoogroups.com , Florian Anwander <fanwander@...> wrote:
>
> Hello Bernard,
>
> > I think the hardware tuning of DCO2 is very hard to get fine. Depending of this, you will have more or less "swirling". Like a built-in phaser.
> >
> > This parameter is easily programmable in a patch (DCO2 detune), but for built-in patches it is not... so these sounds will feel "dull" or "lively" depending of this hardware setting.
> You are right. I never thought about this.
>
> The tuning of the DCOs depends finally on the tuning of the two master
> clocks, which is set by the two coils L1 and L2. I have never touched
> those, so I don't know, how hard or easy it is to get a better tuning.
> But as I have now two JX-3P I might try it.
>
> The two board layouts do not affect the sound. Roland changed only
> between two pin housing types of the same chip.
>
> Florian
>