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/294758.aspxTue, 21 Sep 2010 11:04:31 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:294758Dillen0https://archivedforum.beoworld.org:443/forums/thread/294758.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=294758<p>Cracked solder joints at the driver transistors.<br />Cracked solder joints between the processor and display modules.<br />Cracked solder joints at connectors related to the signal path.<br />A noisy transistor or opamp in the signal path.<br />- Pretty much in that order.</p> <p>If you can swap the signal leads/plugs from the left/right amplifier modules, that will<br />tell you if the problem lies within&nbsp;one amplifier module or the preamp etc.</p> <p>Martin</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/294755.aspxTue, 21 Sep 2010 10:37:12 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:294755Premiumverum0https://archivedforum.beoworld.org:443/forums/thread/294755.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=42&PostID=294755<p>Hi all,</p> <p>My beomaster 8000 has started making crackling noises in the left channel. Swapped speakers, I am sure it is in the amplifier. Volume control has no effect so I guess the problem is in the power amp? It has all new capacitors except for the 4 big 10000uF cans in the power supply.</p> <p>The crackling gets worse as the amp warms up.</p> <p>Any suggestions what the problem might be?</p> <p>Thanks!<img src="http://forum.beoworld.org/emoticons/01.gif" alt="Smile" /></p><div style="clear:both;"></div>