I recently bought a Marantz SR5100 receiver at an auction, mainly because I had this same receiver years ago, and it was really my first good stereo system. So a little nostalgia kicked in! It does work, but has some issues, and I think the power supply might be giving out. After a little internet research, my memories of this receiver having great sound and a good amount of power, 100 wpc, were confirmed. I would like to check into having it repaired and cleaned up. Does anyone know who I could contact about this? I see lots of restored Marantz receivers on eBay, not sure if I should contact one of those sellers, or if anyone on this forum knows of someone good to contact.