https://archivedforum.beoworld.org:443/forums/30.aspxA Forum for Technical Help and Support on Bang & Olufsen products over 25 years old.enCommunityServer 2008 SP2 (Build: 31104.93)https://archivedforum.beoworld.org:443/forums/thread/161476.aspxThu, 27 Nov 2008 02:09:01 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:161476Dillen0https://archivedforum.beoworld.org:443/forums/thread/161476.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=161476<p>Sounds like a capacitor problem. In this case, I would concentrate on the smaller caps in the power supply area and the caps on the processor module. It&#39;s the control signals from the processor that goes through to the signal path.</p><p>Martin</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/161461.aspxWed, 26 Nov 2008 21:49:21 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:161461Jacoll960https://archivedforum.beoworld.org:443/forums/thread/161461.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=161461<p>Hello -</p><p>I purchased a Beomaster 5500 and some related pieces last year from the original owner.&nbsp; All of them were in pristine condition, and they sound great (over a pair of RL 140&#39;s).&nbsp; Within the past few weeks the receiver has started to transmit a high-pitched noise whenever I adjust the volume.&nbsp;&nbsp;The sound comes from both speakers, and&nbsp;lasts only so long as the red volume-level lights on the receiver are on.&nbsp; Given its transient nature, I can live with the problem.&nbsp; I&#39;m curious, though, as to whether anyone has an idea what&nbsp;the cause may be.&nbsp; Is it possible that it&#39;s the beginning of a bigger problem (i.e., a continuous high-pitched sound)?</p><p>&nbsp;Thanks for any input.</p><p>John&nbsp; </p><div style="clear:both;"></div>