Harman Kardon Model HD500 CD Player Technical Manual | eBay
Serviced 1986 HARMAN KARDON HD500 Single CD player w/ original manual & remote For Sale - Canuck Audio Mart
pecan on Twitter: "picked up three Harman/Kardon components today. hk 590i receiver (1983-86) HD 500 CD player (1985) CD 391 tape deck (1982-85) https://t.co/DfWRz721yN" / Twitter