First time posting. I’ve been trying to set up my “shake and boom” that I purchased a while ago and finally have had a chance to build. I cannot get it to fully start up. I’m trying to diagnose I connected a monitor and I get a lightning bolt I’m the upper right corner which means undervoltage. I’ve tried two high quality lower supplies and neither works. Is there something that could be configured incorrectly or incorrectly connected causing this?
Also, are there written instructions somehwere for assembly for me to check? I found the video hard to follow because the builders hands were often blocking the shot. Thanks for your ideas!