Discussion about the Korg PolySix synthesizer

Do not short reset to ground, since there is an op amp 
output driving it.   You could damage that.    Just check it with a scope
(or a meter if you don't have that) to see that it is normally sitting high. (>3.5V)
I just looked at the code again, and the first thing the CPU does is to 
turn off all the program LEDs.  Then it checks the DAC calibration 
switch.  So if you put that switch in the calibrate position (on?  not sure)
then the CPU should jump to that code and most of the LEDs should be off.
If that doesn't work, then your CPU is not executing, which means you either 
are asserting or pulsing reset, or the oscillator is not working properly, as 
mentioned before.   I think I took the osc caps off of the old board as I didn't 
want to run into that issue.   

    Bob

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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, 3:20 PM
 
 
  
 
 
 
   
 
 
     
       
       
       Okay thanks sorry I was being a bit sloppy with my
 language i guess. But what sort of signal is the reset pin
 expecting to see? That's all i'm asking... should i
 try shorting it to ground? or... shorting it to the +5V
 supply, etc? or it needs some sort of binary signal?
 (i'm a bit out of my ken here)
 
     
      
 
     
     
 
 
 
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