Board schematics for the B3606 top and bottom boards were done by user flex on the EEVblog forum. This should help immensely with figuring how to drive all the components.

I've already managed to drive the CV/CC leds, partially successful with the 7-segment display. Still unsuccessful with the output enable part and the buttons.

I did manage to get the PWM sorted but without the output enable it doesn't help.