Discussion about the Korg PolySix synthesizer

Did you use 22pF and 10pF for C23 and C22 near the 6 MHZ ceramic resonator? Many people have found that the new boards are very unstable with these values, and you need to use 10pF for both capacitors to get the clock running properly. I have also used both the original standoffs and the new ones. Just drill the hole out a bit bigger if they do not fit.
Don Backshall

From: mailto:PolySix@yahoogroups.com 
Sent: Sunday, February 7, 2016 12:10 PM
To: PolySix@yahoogroups.com 
Subject: Re: [PolySix] Re: The Post I didn't want to make....

  
Check the reset input to the CPU, and the oscillator waveform.
Also, there is a test pt on the side of the CPU towards the effects bd
that I think should have a pulse on it every so often if the code is running
normally. Of course check 5V at the logic chips.

Lots of other things to check with a scope if it's really not working.
The DAC output is one, as it should be doing the succ approx on 
the pots over and over.

Bob

--------------------------------------------
On Sun, 2/7/16, jw_dewdney@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:

Subject: [PolySix] Re: The Post I didn't want to make....
To: PolySix@yahoogroups.com
Date: Sunday, February 7, 2016, 3:38 AM


 









or is this fairly normal behaviour before one has
any patches loaded in perhaps....?









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