Sun4 370 PSU Maintenance/Schematics

aswood at aswood at
Tue Jun 21 11:40:58 CDT 2016

It's a Zyrtec 925Watts psu.

Any Zyrtec schematics, service or repair manuals anywhere?

I do like the Astec service manuals, e.g. for the SMBX 36xx series psus. 

-- Andreas

> Am 21.06.2016 um 16:36 schrieb "aswood at" <aswood at>:
> Hello all,
> I do have an Symbolics UX1200 plugged into a Sun4 370 host.
> Before powering the host, just to be secure, I'd like to check the psu - or 
> if the psu will be broken, I'd like to try to fix it.
> Yesterday I'd a look into the psu - very complicated layout!
> Is there any known documentation, servicing and maintenance documentation 
> or schematics for psus used in Sun server/workstation available, of course 
> esp. for psus used in Sun4 370 systems?
> -- Andreas

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