| model No |
function module | volume/sw |
| RVB-1 | Reverb | Lgain/Rgain/Depth |
| MX-1 | 4Input Mixer | Gain1/2/3/4 |
| LFO-1 | LFO | Frequency/Symmentry |
| ADSR-1@ | Envelope Generator | A/D/S/R |
| AD-1 | Envelope Generator | A/D |
| EA-1 | Exponential Amp/Mixer | Vibrato In1/2 |
| VCF-1 | Multimode VCF | Input gain/ Tune/ resonance/Blend |
| EF-1 | Envelope Follower/Pre AMP | Gain/Decay/Thresh |
| VP-1 | Volrage Processor/Mixer | Gain/Offset |
| DVCA-1 | Dual VCA | A1-/A1+/A2-/A2+ |
| SH-1 | Sample & Hold | Sample rate/Signal Freq |
| LP-1 | Lag Processor | Gain/Time Constant |
| PS-1 | Power Supply | . |
| NS-1 | Noise source/Random Voltage Generator@ | Pink gain/White gain |
| KB-1/KB-2 | Keyboard Electronics | Oct Fine/Oct Coarse/Tp/Glide |
| VCO-1 | VCO | Input select/Octave/Tune/Wave/(On/Off)/Gain@ |