https://archivedforum.beoworld.org:443/forums/42.aspxAdvanced Technical Forum for discussion of Bang & Olufsen products at component level.enCommunityServer 2008 SP2 (Build: 31104.93)https://archivedforum.beoworld.org:443/forums/thread/292583.aspxThu, 02 Sep 2010 00:59:22 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:292583Peter0https://archivedforum.beoworld.org:443/forums/thread/292583.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=292583<p>Here we have the problem. B&amp;O did not release a circuit diagram as the BC1 is repaired by module replacement. We have all there is to have. Very short sighted in my view. </p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/292564.aspxWed, 01 Sep 2010 15:00:59 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:292564Maurice 0https://archivedforum.beoworld.org:443/forums/thread/292564.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=292564<p>Hello ALL I live in hope somone may be able to offer some advice for the following fault on my beocenter 1 type 8523 which i obtained from ebay as spares /repair. All i have is the red stby light when i apply power but nothing else in responce to the beo4 remote. I have been advised by the previous owner that B&amp;O have done an assesment on the item and advised a PCB fault, so to confirm this i removed the tube neck pcb and applied power and&nbsp; still only red standby led,&nbsp; presumibly then that would confirm the fault is elsewhere perhaps on the power supply PCB4. I have tried to find a wiring diagram for PCB4&nbsp; with no joy this site only has a block diagram for all the various module connections.&nbsp; Does anyone have any idear were to start looking for the fault and even a wiring diagram for PCB4 so i can start to enjoy watching this lovely TV.</p> <p>Regards Maurice.</p><div style="clear:both;"></div>