Page 1 of 1

C1P sound board question

Posted: Thu Aug 10, 2017 1:49 am
by lowrybt1
I've come across what looks to be a tone generator for the C1P: home made using two IC's: NE555N and UA555TC. There are four wires that look like they should connect to the 600 Board: red and black (power) and white and green. Anyone have thoughts on where the white and green leads might attach? Anyone have thoughts on whether this board/project was documented anywhere? I can only find documentation of a more sophisticated sound card produced by Jeff F.