That was exactly the issue (facepalm).italofrans wrote:have you checked the polarity of the led's ? it is unlikely that all led's or drivers ic's are not working.
I should have caught that. I lined them up t the picture, but not, as I should have to the screen.
I'll call this solved. Thanks ot everyone who helped, and I apologize for making such a dumb mistake and not catching it.
I still have issues with the noise circuit as the snare and clap don't work, and there is cross triggering between clock and crash, but I'll research that tomorrow. Again, thanks for the kind assistance, I am eternally grateful to the DIY community. Even though this is only 80% complete, I am loving it so far.