CallMeEddie
New member
My MKII machine went black a couple months ago. There was power to the monitor, but none to the pcb. I finally have time to work on it and was surprised when it powered up. However, it gave me 10 code tones, then made a horrible screech out of the speakers. I thought no big deal since that seems like a sound board short, but after turning it on and off a couple times, its back to the same issue of power to the monitor but none to the pcb. You can hear the hum from the monitor, but other than that its dead. Both fuses are intact. Sometimes its working, most of the time not. Power supply is the main issue I know nothing about. Where should I start checking to troubleshoot this? Thanks for any help!