for unrelated reasons I did it on my BV8-32 this morning ....
this is what I did (coached over the phone by B&O)
1/ press menu --> get left side menu
2/ press 4 --> get SETUP menu (in middle)
3/ scroll to OPTIONS
4/ press red <= on the B&O diamond and "GO" --> get CUSTOMER SERVICE MENU (in middle)
5/ scroll to RESET TO DEFAULT
6/ press "GO" --> get RESET TO DEFAULT menu with warning "RESET TO THE DEFAULT SETTINGS FOR THE MODULE"
7/ press >> to start the scan
Hope that helps a little
First B&O (1976) was a Beogram 1500 ... latest (2011) change has been to couple the BL11 with the BL6Ks *sounds superb*