I just bought a 1987 Mitsubishi DWC 90C Wire. It took about 4 weeks to get it hauled home, get my phase convertor hooked up, and get the machine hooked up. Now when you turn the power on the screen comes up fuzzy and none of the led lights on the controller come on. It was under power and I ran it before I bought it. Its been about 6 weeks now and its sitting in my shop not burning. Can anyone tell me what I need to do or look for?