User manual DeLonghi PrimaDonna ESAM 6650 (English - 17 pages)
Teardown Repair Delonghi Prima Donna ESAM6600 part 1 - YouTube
DeLonghi ESAM 6600, data, comparison, manual, troubleshooting, repair and member rating at Bean2cup.org
DeLonghi ESAM6600 Gran Dama Super Automatic Espresso Maker - 1.8 Liter Removable Water Tank, Single Touch System, Direct to Brew System, Decalcification System, Stainless Steel Construction at TigerDirect.com