A customer sent us the uniPulse trigger points for the Roland TR-66. Thank you very much! Installing is very simple, just connect the unipulse to the trigger points as shown and upload the config file via the tool.
As you can see there are 9 instruments you can trigger:
BD = Bassdrum
SD = Snare Drum
HH = Hihat
CY = Cymbal
HC = High Conga
LB = Low Bongo
HB = High Bongo
C = Conga
RS = Rim Shot
Just connect uniPulse outputs P1 .. P9 to these points, configure these outputs using the configurator as ’15V, negative, Open Rect’ and you are good to go.
The CB (Cowbell) sound can be achieved by connecting the CB shunt point to GND. You could install an additional switch to achieve this. Alternatively you might use an NPN transistor to pull that point low, controlled by an uniPulse digital output. We have no way of testing, so this is some experimentation left to you.
uniPulse needs some Power and you can get it by connecting uniPulse GND to G1 or G2, and connect uniPulse V+ to B0 of the voice board as shown in the next picture.