Discussion about the Korg PolySix synthesizer

Hi Peter,

I am afraid we can't make that assumption until the logic that controls 
IC31 has been tested. This device is basically a switch. You apply a 
binary pattern to lines A, B, C and INH and this determines which one 
of the outputs is connected to the input. The input is marked X the 
outputs marked X0, X1, X2, etc. It is the outputs which we just tested 
and which don't seem to move. Tell me, do the voice LEDs (D10) come on 
in order in Unison mode? Everytime you press a key an alternate voice 
LED should light up. I suspect not?

Can you lay your hands on a logic probe at all?

Cheers,
Andy