I just purchased an Agilent (not HP) E3620A dual power supply from eBay. This is a "made in Malaysia" unit with Agilent part number circuit boards inside. This model is still in production and is fully supported.
The supply is working fine, but for future reference I wanted a service manual. I downloaded one (July 2013 edition) from the Agilent web site. In the manual are references to the schematic at the back of the manual. However, there is no schematic included in the manual.
So I wrote to Agilent support to ask about schematic availability and provided the serial number. This was their response:
"The E3620A is presently supported by whole unit exchange. In light of this support model, certain elements of the User/Service guide have been eliminated - even where the[y] previously existed, they have not been maintained and contained too many inaccuracies. So, the division that supports this instrument decide[d] to withdraw/eliminate them from the documentation. No schematics or parts lists for this instrument are available."
Not available? Am I to believe that Agilent does not maintain schematics for a current product? Or is it that they simply do not want me to have a copy, perhaps to push me into buying a maintenance contract?
This is not making me feel good about Agilent. I guess I'll see if I can find a schematic in some dark corner of the Internet.
Any comments?
Thanks