This scope has me scratching my head. I had it running all night without any problem, I doubt part number 160-2393-00 is actually the culprit despite the occasional startup error. I suppose I should scrutinize the PSU more.
I have a question. What is the best way to measure ripple on the LV supply. When I checked it the first time, I had the 2247A on an isolation transformer with my 2245A connected directly to mains AC. I used a x1 probe on my 2245A to check for ripple and clipped the ground lead of the probe to the chassis of the 2247A.
Would it be more accurate to connect the probe ground to the ground on the LV test header (J1204) instead of the chassis?
