All:
I am going through a HP 3562A Dynamic Signal Analyzer. Many years ago this was thrusted upon me by a former employer, with the threat of it going to the dumpster if I did not take it. The unit actually looks to be in excellent condition, so I thought I would at least take a stab at it.
At this time the Analyzer is completely dead. I suspect the issue is a PSU Fault. I have looked online for a reasonable schematic, and I am not finding a suitable service manual. The ones I have found online, the schematics are incomplete, or half missing.
At the moment the PSU Board (A18) is giving me a TTL High on OTEMP and PWRDN, while giving showing a TTL Low on the PWRUP test point. I suspect fault monitoring has caused the above indication, but the schematics I have been able to locate do not show enough detail to understand exactly where to start looking.
Thanks in advance!
Rich
