gtr777HCD-GTR333 GTR555 GTR777 GTR888 DIAGRAMA SONY. Antonio TR Diagramas. Manual de Servicio Reparación de Sony Genezi modelo (MHC) o HCD-GTR333 GTR555 GTR777• HCD-GTR777 is the ampli fi er, USB, CD player and tuner section in MHC-GTR777. • HCD-GTR888 is the ampli fi er, USB, CD player and tuner section in MHC-GTR888. Photo: HCD-GTR888 (E2 Model)