Hi,
I took me 3 days to successfully repair my HP53132a PSU that failed recently (relay clicking frantically)
1 resistor was open loop, 1 resistor was shortened, 1 capacitor was shortened (on the -12V output).
The image of the schematics (found on this site) was very helpful.
I found the drawing accurate regarding the identification and placement of components,
but however there were errors or misplacement on labels.
If someone could send me a copy of the electronic file I could update it.
A bit long-lasting and tedious experience, but rich (and finally successful !)
Lessons learned :
- It takes time, don't give-up...
- Good to be retired => time is life (and not money...)
- Please short-circuit the pins of the main cap (C1 with 150ohm resistor) before touching the board (300 Volts looming !...)
-> It never happened to me.....

- Start with the outputs : If there are still talking a bit, but one is full zero Volt => focus on this one
- Focus on the larger, power dissipating resistors... and the electrolytic caps naturally
- Thanks to the good old times board design : through hole components and everything labeled !
Gilles.