This depends on which version of Beolink 1000 you have. I think this is covered elsewhere in this forum, but in order to simplify things - here is my cheat sheet:
Beo 4 Beolink1000 MkI & II Beolink 1000 MkIII & IV
[red] [SHIFT] [<] [SHIFT] [\/]
[blue] [SHIFT] [>] [SHIFT] [/\]
[green] [SHIFT] [<<] [SHIFT] [<<]
[yellow] [SHIFT] [>>] [SHIFT] [>>]
[MENU] [SHIFT] [TEXT] [MENU]
[LIGHT] [SHIFT] [LINK] [LIGHT]
[GO] [PLAY] [PLAY]
[DTV] [SATELLITE] [SAT]
[DVD] [SHIFT] [CD] [SHIFT] [SAT]
[PC] [SHIFT] [STORE] [SHIFT] [STORE]
[DVD2] [SHIFT] [V.TAPE] [SHIFT] [V.TAPE]
[V.AUX] [SHIFT] [TV] [SHIFT] [TV]
[A.AUX] [SHIFT] [RADIO] [SHIFT] [RADIO]
[N.RADIO] [PHONO] [PHONO]
[N.MUSIC] [SHIFT] [A.TAPE] [SHIFT] [A.TAPE]
[FORMAT] [PICTURE] [PICTURE]
[SPEAKER] [SOUND] [SOUND]