Was working a tot lot this evening things were going pretty could was finding some clad, hit a target went to pin point with the dx all of a sudden it started screaming no matter which way i pointed it, turned it back to coil, went back to swinging then the spectrum made a loud noise and the screen went blank. Turned it back on seemed ok for about 2 min then another loud noise boom. screen went blank. Any suggestions. was running rx at 9 am at 70 and disc at 85