General Forumhttps://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)Re: Beomaster 2400 Humming in the boxes, specially on radiohttps://archivedforum.beoworld.org:443/forums/thread/165230.aspxWed, 10 Dec 2008 15:27:49 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:165230Dillen0https://archivedforum.beoworld.org:443/forums/thread/165230.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=13&PostID=165230<p>TR27 is not the reason for the humming.</p><p>Aging capacitors and&nbsp;the&nbsp;board mounted&nbsp;rectifier are the&nbsp;greatest candidates.</p><p>Martin</p><div style="clear:both;"></div>Re: Beomaster 2400 Humming in the boxes, specially on radiohttps://archivedforum.beoworld.org:443/forums/thread/165149.aspxWed, 10 Dec 2008 09:43:42 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:165149science490https://archivedforum.beoworld.org:443/forums/thread/165149.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=13&PostID=165149The humming continues in 220V or 240V setting. What ist "Tr-27"? Maybe I first change this?<div style="clear:both;"></div>Re: Beomaster 2400 Humming in the boxes, specially on radiohttps://archivedforum.beoworld.org:443/forums/thread/165134.aspxWed, 10 Dec 2008 09:07:01 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:165134Dillen0https://archivedforum.beoworld.org:443/forums/thread/165134.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=13&PostID=165134<p>Welcome to Beoworld !&nbsp; <img src="http://forum.beoworld.org/emoticons/21.gif" alt="Yes - thumbs up" /></p><p>Check that the mains voltage setting switch is set according to your local mains voltage.</p><p>Still no luck -&nbsp;replace capacitors. A kit is available.&nbsp;</p><p>Martin</p><div style="clear:both;"></div>Beomaster 2400 Humming in the boxes, specially on radiohttps://archivedforum.beoworld.org:443/forums/thread/165031.aspxWed, 10 Dec 2008 02:53:21 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:165031science490https://archivedforum.beoworld.org:443/forums/thread/165031.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=13&PostID=165031I´ve a Beomaster 2400, really great looking in oak in whith a good sound. But there is a humming in the boxes, specially when radio is on. I opened it from the bottom, "TR-27" looks a little bit unusual. What can I do?<div style="clear:both;"></div>