I have a Beosystem 3 from a Beovision 9 type 9600 item 8150010. I got it partly working with my new LG G9 only the digital sound is still a problem. Is there a way to reset the BS3 to clear the monitor information from the BV9. Under display connection 1 (DVI 1) it sees that an LG monitor is connected. The Reset when going to the system menu with Menu 0 0 Go dit not clear monitor information. Selecting Configuration stays empty.