[Amps] AMP Supply LK800-NTC Tuning?

[klahaie at centricata.com]

I'm helping a friend with his Omega TNY modified LK800-NTC amplifier (the
'no tune' or what I call 'fixed tuned' model.

I think it needs the preset tuning adjusted, is there a bulletin or
service manual for this amplifier??

Looks a little daunting, since half of the capacitors are behind the
filter cap and rectifier board.

I come to this conclusion since when driving it to 1500ma of plate current
@ 2700v on key down, it's only putting out about 1500 watts.  Last service
at Omega showed 2.5kw into dummy load.

Something is not right. Not finding a lot of documentation so far.

Any leads out there?

Thanks

Kevin K7ZS