circuit bent casio cz230s
May 12th, 2008 clavicz23x - 2000
my first circuit bending project. the cz230s is basically a non-programmable cz101 with a bunch of presets and a built in rz1. i initially added 4 switches to distort the drum sounds and distortion on the keyboard voices with a knob for amount that takes it from fuzz to overdrive. later on i went back and built in a 555 lfo to the pitch (connected to the bend wheel) with speed control. i also added a switch to turn the speaker off for late night rockin.

1 broken key.. some ghetto body contacts on lower right

l-r: lfo led, lfo on, lfo rate, dist amount, dist on w/ led, 4 drum dist w/ leds, speaker off.

drum chip.. interconnect pins for distortion and other effects..
keyboard voice with distortion and lfo:
drums with distortion: