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I have a gen 2 Orion 250 hcca that appears to need extensive power supply repairs, at least.

It appears that one side of the clamped transistors (FETs I think for this amp) are gone (several show a short), and perhaps several on the other side. The board shows some related damage, but looks to be usable. I think rectifiers are in this area too and may need to be replaced.

The small transformer standing on end is burnt up, I will probably have to order and wind a new one.

Several fluid electrolytic caps are obviously in bad shape. I already have all such caps for this amp on hand.

I do have access to several working versions of this amp, which should help.

Questions are:

1.) How best to start with repair.

2.) Replacement part suggestions for FETs, rectifiers, transformer core/winding, etc. I suppose I may be able to figure this out but any suggestions are appreciated.

Thanks in advance for any help or feedback.