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/355709.aspxWed, 25 Jan 2012 10:18:08 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:355709machineage0https://archivedforum.beoworld.org:443/forums/thread/355709.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=355709<p>Immense thanks to Solderon29!</p> <p>After some tennis messages - he correctly located the problem - which could be another common fault.</p> <p>After checking all caps - and other components it was found that tr33 was shot. Having replaced this - and powered up - another arcing sound and the set then just displayed a vertical line in the middle of the screen. Solderon29 correctly suggested the fault would be on the horizontal scan coil pcb. You need to disconnect the connector - and carefully unclip the pcb and bend the pcb up to access the rear. As you can see below - the cause of the arcing - a burnt out joint. I cleaned the join - re-soldered and re-assemebled - et voila! I re-flowed the other joints as well whilst I was there.</p> <p><img src="http://forum.beoworld.org/emoticons/02.gif" alt="Big Smile" /><img src="http://forum.beoworld.org/emoticons/02.gif" alt="Big Smile" /><img src="http://forum.beoworld.org/emoticons/02.gif" alt="Big Smile" /></p> <p>Huge thanks to Solderon29!!</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/353358.aspxMon, 09 Jan 2012 04:44:18 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:353358machineage0https://archivedforum.beoworld.org:443/forums/thread/353358.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=353358<p>Thanks for the replies :-)</p> <p>&nbsp;</p> <p>Well it&#39;s been powered down for a few days now - so I feel brave enough to venture inside <img src="http://forum.beoworld.org/emoticons/emotion-60.gif" alt="Lightning" /></p> <p>&nbsp;</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/353172.aspxSat, 07 Jan 2012 13:37:55 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:353172solderon290https://archivedforum.beoworld.org:443/forums/thread/353172.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=353172<p>Very common problem sir.There is a capacitor in the lopt stage that becomes dry jointed and arcs.This can eventually cause the lopt transistor to fail too,hence the dead set,as the psu shuts down.</p> <p>Mail me for more info,if you are confident to repair,don&#39;t go there otherwise!!!</p> <p>Nick</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/353105.aspxSat, 07 Jan 2012 03:43:12 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:353105Die_Bogener0https://archivedforum.beoworld.org:443/forums/thread/353105.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=353105<p><a href="http://forum.beoworld.org/forums/p/24571/191760.aspx#191760">http://forum.beoworld.org/forums/p/24571/191760.aspx#191760</a></p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/353099.aspxSat, 07 Jan 2012 02:00:07 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:353099machineage0https://archivedforum.beoworld.org:443/forums/thread/353099.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=353099<p>Can anyone help? It&#39;s looking like a skip job alas.. [:&#39;(]</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/352636.aspxTue, 03 Jan 2012 11:11:25 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:352636machineage0https://archivedforum.beoworld.org:443/forums/thread/352636.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=352636<p>It&#39;s been coming for a while - and today it happened!</p> <p>I&#39;ve been hearing an arcing sound coming from the TV for a while now. Perhaps once every few days - a few small arcs which spiked the picture - then normality. However today it arced a few times and then died <img src="http://forum.beoworld.org/emoticons/emotion-60.gif" alt="Lightning" /></p> <p>I&#39;m fairly competent with electronics and certainly competent with a soldering iron - so I thought I might give it a go to save it from the skip. I&#39;m going to assume it&#39;s something around the LOT? Anyway - could anyone give me some pointers - tips etc?</p> <p>The set is currently dead with no red standby led.</p> <p>&nbsp;</p> <p>Thanks!</p><div style="clear:both;"></div>