I have an HP 8591A with completely "dead" power supply. This part was apparently contracted out from HP to MicroENERGY INC and people I have talked to at Agilent support here i Sweden say that they never repaired these supplies at HP, they sent the bad part back to MicroENERGY for replacement to a repaired or new one. I have looked everywhere i possibly could think of to find a schematic without any success. This power supply was not designed with service considerations as prio nr.1 and if anyone have any kind of information about this part it would be helpful. It could be info about where to look after schematics or hints about which components and/ or solderings worth take a closer look at.
Any help appreciated.
Peter
Any help appreciated.
Peter
Welcome to the forum!
Many HP/Agilent power supplies were built as assemblies that were never intended to be customer serviceable. In many cases HP/Agilent never published power supply schematics as part of having a non-serviceable safety policy.
I don't recommend attempting to service the power supply yourself, and please take all necessary precautions if you ever work on any high voltage circuits while they are live.
Best regards,