Wonder if anyone else has seen this problem. I've searched the forum but can't find anything similar. A couple of weeks ago, my PX 5s died while playing an outdoor gig, and I could not get it to power on again. I always carry a spare power supply but that also did not make it work. Strange thing though, when I hit the power button, the display lit up for about a half a second and then went back out. When I got home that night, I disconnected all cables and inserted 8 AA batteries, but still the same result. Display would come on for a moment and then go off. I also found that if I continuously hit the power button repeatedly very fast, the display would stay lit as long as I kept pressing the power button. However, no matter how long I did this, the screen would stay lit, but also stay blank. That is, there is no boot up or anything but a blank screen. Any insight as to what's going on would really be appreciated. I am on OS 1.13.