Some progress:
There are only 4 ICs in that PSU. They have three different logos (see below).
I've identified the last one as being Micro Linear (
http://www.microlinear.com/ ), but the other two are still evading me.
The first one looks like the Fujitsu logo.
Either way, I can't match the part numbers with any of their products. The closest match to MicroLinear, is an optical IC part, working in the 5 MHz range. The closest match to Fujitsu is an ASIC.
So I contacted the Houston distributor for Lite On, but since this is a Compaq part, they referred me to HP.
[edit] but I was asking for schematics. I called them back and I got the Compaq p/n, woohoo!
(it's 148789-001) [/edit]
Hp says: we need either a Compaq p/n or a server model.
So I searched the HP website, with no luck.
I then left a message with Directron, to see if they could get me more info.