Power supply EA-PS 9080-50 T

[Kopernik]

HI!
Does anybody have service manual for power supply EA-PS 9080-50 T ?
I really need it, because it doesn't start up. The main relay it doesn't turn on.
I check all power trasistors but, they are ok.. all caps looks OK.
but the cuircuit is too large to look all elements and check them.
so I don't know what to measure...
Does anybody repair power supply like this?

[oldway]

http://www.pewa.de/DATENBLATT/DBL_EA_EA-PS9080-50_ENGLISCH.PDF

Without schematics, knowledge and experience in repairing SMPS, it is dangerous to try repairing such a powerfull power supply.
If you should have such knowledge, you would not ask such a question here.

See 8.5 Demounting (p 13): !!Caution!! The unit can't be repaired by the user....Working on the open unit is allowed only for the trained electric engineer.