I just picked up this marantz pmd420 and everything looks very mint. I’m trying to find the proper belts to fix this unit and bring it back to life.
Sorry, I checked the SM and OM and don't see any belt sizes listed, my Marantz Official Repair Parts has no belts listed in it. Mine's a shelf queen for now so I don't know the belt size. I have a boxload of belts but I finally got a unit and I have no belts for it, I'm going to try these guys https://marvac.com/ they carry the PBR line (Russel Industries). They sell on the website and Ebay.