From what I can tell, circuit bending Casio PT-10 may not be the most rewarding thing to do. However these board scans and tip lines may be handy for anyone getting started. Also note that even though Casio PT-10 and Concertmate 350 have similar external looks their boards are not the same as pointed out by the Univac. The above boardscans were posted on the benders forum as links to here , and now they are also archived on GetLofi.