HP E3631A another one comes to life

[Rick]

I almost finished repairing one of those. Only the "unreg" issue mentionned remains and the optoisolators are ordered.


Big thanks to free_electron who explained it all and all I had to do was to follow the explanations and the advices.
Great forum!

[idpromnut]

One of the Agilent supplies that I repaired recently had one (or more) of the output pass Fets blown and the UNREG annunciator was lit. But in that case there was no output on the faulty channel.

[idpromnut]

Hmm, I'm not sure what to expect in that case.  I ail try to have a glance at the schematics for this supply at lunch.