I would first remove the cover and see if there are any fuses on the circuit boards... could be PS but could also be a fuse.
Audio Refinement Complete integrated amp service
I have an Audio Refinement Complete integrated amp which need service. I think it is the power supply. The amp comes on but the pre-amp side doesn't. None of the source lamps light. Anyone know of a very good repair shop. I am very attached to this amp.