[sdiy] cs30 trigger input

[Scott Juskiw]

I don't think this is possible. The sequencer in the CS30 cannot be 
clocked from any of the jacks on the back, unless you do some 
hardware hacking on the inside. The EXTERNAL input jack is expecting 
an audio signal, not a gate signal, which it processes to generate a 
trigger to fire the EGs, but not the sequencer.

>i am in the process of trying to trigger a yamaha cs30 sequencer 
>from the external input. it looks like the sequencer needs +15v 
>pulses to step, and the external input is converted to a trigger 
>that my cheap meter is reading as negative-going from +10v to +4v. 
>this seems weird to me. i had heard that the yamaha triggers were 0 
>to -15 or some such thing. anyone know what i should be getting? 
>supposing my reading is correct, how would i go about converting 
>this to +15? i've converted s-trig to v-trig, it must be similar. 
>any ideas?
>