Reply To: Beosound 9000 Audio Problem January 17, 2023 at 9:03 am #14458 Rajkumar-CatBRONZE Member Topics Started 1Total Posts 8 By the way, MK3 service manual available online not updated schematic, mine type 2572 but PCB32 Rev-V, service manual has Rev-N, where I can find updated schematics. Thanks.