I have a 54645D scope that appears to have a dead power supply board (plug unit in, turn it on and nothing happens, the fan does not spin, and nothing appears on the screen). I don't know the history of the unit and I don't know when it stopped working and what happened to cause it to stop. The part number for the power supply is 0950-2735. I know this power supply board is used in the following products: 54615B, 54615T, 54616B, 54616C, 54645A, 54645AN, and 54645D. I am looking for a schematic for this supply board to try to troubleshoot it. I would also be interested in a source to purchase a new (or used) power supply board from. Also any tips you might have on troubleshooting this board would be much appreciated. Thanks in advance for any information you can provide.
Look for any low voltage (<100v) electrolytics on the mains side of the PSU and replace it/them (use 105 deg types).