Function Menu Input Selector black rotary Knob for Sony receiver:
STR-DH540
STR-DH550
STR-DH740
STR-DH750
STR-DH770
STR-DN1040
STR DN1050
STR-DN1060
STR-DN1070
STR-DN1080
STR-DN840
STR-DN850
STR-DN860
STR-ZA810ES
Part no: 444285902 (replaces the old part no 444285901)