The PC-1000 is basically the fully developed version of the Yamaha PS-35 , so a PS-55 with additional card reader (kid sis being the PC-100). A very powerful machine with solo section, orchestra section, arpeggio, different accompaniment variations, etc. Like in the devices PS-25, 35 and 55, the FM sound production was put into effect through the combination of several singular chips with open, tamper-friendly architecture.
Same thing goes for the drum sound production, which is executed by a control CPU and a ROM chip with stored PCM samples (?). The great range of functions and separate volume controls for the components make the devices from this series enormously versatile. A dream come true for every circuit bender, if you like the sound. Up to now I've implemented the following modifications:
- "Synthesizer" matrix consisting of 7 switches for manipulating the FM sounds
- "Drum" matrix consisting of 8 switches for altering the drum sounds
- Tempo fine controller
- Distortion switch
- Break controller for "wrecked" beats