Hi Peter and welcome to Beoworld! I see in the manual that the SOUND menu disappears when the Audiomaster is in A.OPT 0. Are speakers connected?  I am not sure whether the BM5 defaults to A.OPT 0 if no speakers are connected (like BS9000).  Try connecting powerlink speakers. Alternatively, have you tired all the other A.OPTs of 1, 2, 5 and 6? Is the BM connected to anything else by Masterlink?  If so, try disconnecting and re-set the A.OPT. EDIT:  And I think that the A.OPT has to be set in both the BeoSound and the Beomaster.  If you haven't already got a copy, search for the 'BeoSound 5 Installation Manual' and lave a look at pages 20/21.

Hi Guy, Thanks for your reply. The system is set up as a stand-alone system, with speakers connected to the power-link connectors, however the speakers are not B&O but work similarly. I don't think this could cause the issue. Set-up exactly as system 1, shown on page 6 of the BeoMaster 5 BeoSound 5 Installation Guide. AudioMaster is set to: YES AM Option is set to 1 AM Option 0 (speakers turn off), 2, 5 and 6 has been tried but does not bring up the Sound menu. In BeoMaster 5 BeoSound 5 Installation Guide, page 25, is shown how to set speakers, a sub item in the sound menu - this does not bring up the SOUND menu either. Issue still unresolved. Best regards Peter