Some other information would be useful too. What are you connecting to the Scart input? Is it B&O or non B&O? Is it definitely outputting a signal? Are you using a fully wired Scart cable? Did the Beo4 remote come with the TV? Some of the older MX 6000s were controlled by a Beolink 1000 (no screen on the remote).
Connecting anything to B&O TVs is not as intuitive as other TVs in that you have to set each input to correspond with a button on your remote as opposed to scrolling through the inputs as on a standard TV. Also, on the MX TVs there are different options per Scart socket too and each is controlled by a different button on the remote! So a Scart could be opened via DTV, DVD, V.Mem etc depending on how you set it. Then on top of that, some of the “buttons” have to be added to the list in the screen to use!
The easiest way to see if you can get it working is to choose to set up the DVD button on the AV-2 Scart socket (even if it is not a DVD player you are attaching).
1. Plug your component into the AV-2 socket.
2. Go into the Setup Menu in the TV. Turn AV-1 to OFF. Step through AV-2 until it says DVD.
3. Save the settings.
Turn on the TV using the TV Button. Turn on your attached component using its own remote. Press the DVD button and you should then see the picture.
If you want to connect something to AV-1 as well, I suggest you download the user manual for the TV from this site or you can use “trial and error”.
Good luck
Stoobie