Yamaha CS80

slammah2006 wrote:
> I heard that there was a spot on the M boards where you could connect a 
> LED which would indicate which oscillator was sounding in Rotation....
>
>   
I built a board for this and talked about it here a couple of years
ago.  Here are pictures of the board:
http://launch.ph.groups.yahoo.com/group/yamahacs80/photos/browse/7279

Here you can see where the 8 gate wires, plus power and ground, attach
to the KAS board (ribbon cables in lower right).  I just tapped the
TR1-TR8 outputs of the KAS board. I didn't want to attach the LEDs
directly, since it could be too much load.

I suppose you could put the circuits on the M boards, attached to the TR
inputs. I think it was easier, and more easily removable, to have it all
on one separate board.

Here are the original messages:
http://launch.groups.yahoo.com/group/yamahacs80/message/112
http://launch.groups.yahoo.com/group/yamahacs80/message/122
> This would be usefull to me in tuning....
>   
Yes
> Does anyone have information to this...
> Would this LED alter any of the sonics of the Synth
>   
Not at all.