Real Newbie Here,
I have acquired a unit and I would like some guidance in which direction to follow to try to get this unit into reasonable shape.
It is rock solid below 10v, quite impressive. The problem is that as soon as I go to 10v and over, it is way off. In the order of 20%. In the 50v, I have to null at 60v. Since the lower voltages work well, which section of this unit should I be troubleshooting as I don't really want to upset the lower ranges.
Hopefully it is something evident or discernible. I have not tried any calibration of the higher ranges yet.