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.
Neil James repaired my Audio Refinement Integrated amplifier. He is located in the SF Area.
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.
I removed the cover. Nothing appears to toasted and there is only the main power fuse, which is fine.  I will contact Neil.  Thanks for the lead.