Unless I'm missing it Emil, BeoBod doesn't mention the DVD player is a DVD1. Of course it may be!
Surely though the sound should be OK via scart only?
BeoBod, is the sound from the TV fine in all other respects and the problem from the DVD is only sound ouput and not picture?
Not being familiar with the BV5, does the same problem occur in with other scart sockets? Does the scart socket need to be assigned to a DVD in the settings menu?
Finally, is the scart cable faulty?