[sdiy] yamaha cs30 external clock mod

[gregory zifcak]

hi all,
i modified a yamaha cs30 to allow use of the external input to clock the 
sequencer. it still allows you to use the internal clock to fire the 
envelopes, so you gain an extra modulation timing source.
instructions are posted at userwww.sfsu.edu/~gzifcak/cs30.html .
please let me know if i overlooked something stupid or if you have any 
questions. so far it's working flawlessly!
thanks,
greg