https://archivedforum.beoworld.org:443/forums/13.aspxThe main Meeting Place for BeoWorld members, and the place for General Questions, Answers and things to say! If you have any questions about anything Bang &amp; Olufsen related - please ask. If you have anything to say - please tell!enCommunityServer 2008 SP2 (Build: 31104.93)https://archivedforum.beoworld.org:443/forums/thread/292894.aspxSat, 04 Sep 2010 16:48:06 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:292894Maurice 0https://archivedforum.beoworld.org:443/forums/thread/292894.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=13&PostID=292894<p>Hello anyone 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 no responce via beo4 remote not even a blink from the red standby light. I have been advised by the previous owner that B&amp;O have done an assesment on the item and advised a PCB power supply fault, so to confirm this i removed the tube neck pcb and applied power and still only red standby led,&nbsp; presumibly then that would confirm the fault is elsewhere perhaps on the power supply PCB4. There is some 380 voltage @ C4 on pcb4 and with other caps&nbsp; however this varies wildly from 170 -380, I have also checked for a&nbsp; -8V&nbsp; stby on pin 9 socket 514 of pcb 72&nbsp; and nothing there, 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>