Hello, I have a Roland SPD-S that wasn't used much by its previous owner, but having turned it on and hooked up an output as per the manual, none of the pads respond to being hit, i.e. none of the red lights light up when I hit the pads and it makes no sound. It is in patch mode and I have tried changing the sensitivity, to no effect. Is there anything else I should try before I give up and send it to be repaired?
thanks
