41hz AMP15-PS-XP kit HELP ANYONE?

Hi all, I've looked at all the links and the're all old.
Im a bit of a noob and defo not an electronics person, but I did manage to build a LM3886 Dual mono chip amp and it sounds awesome.
Clearly, this amp (AMP15-PS-XP)
is a different kettle of fish, but I've managed to put it together and someone is trying to test the housekeeping voltages for me, but without a shematic he's going in blind.
No links appear to exist for any documentation, even someone having built it could help.
Anyone out there?
Thanks in advance.