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/220406.aspxFri, 07 Aug 2009 01:33:14 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220406NathanS0https://archivedforum.beoworld.org:443/forums/thread/220406.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220406<p>Martin,</p> <p>which is the signal cable ? I have lots to choose from !</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220404.aspxFri, 07 Aug 2009 01:31:00 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220404NathanS0https://archivedforum.beoworld.org:443/forums/thread/220404.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220404<p>POP IN L POWER AMP!!!</p> <p>Could not see any visible blowouts or cracks in the solder, though I may be looking in the wrong place, can you point me to the right place. I suspect I will have to get an engineer to look at it if it is not a solder problem.</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220403.aspxFri, 07 Aug 2009 01:27:41 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220403NathanS0https://archivedforum.beoworld.org:443/forums/thread/220403.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220403<p>Have done this (mute..mute...etc), no effect. There is definitely &#39;current&#39; comming trough as there is a noticable chage in atmosphere when the speaker is plugged/un-plugged</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220391.aspxThu, 06 Aug 2009 15:57:36 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220391Dillen0https://archivedforum.beoworld.org:443/forums/thread/220391.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220391<p>As I understand it, neither SPK1 nor SPK2 or headphones produce any sound in the left channel, which<br />rules out the relay. The relay fault only affects SPK1.</p> <p>It&#39;s very common to see lots of cracked solder joints in the connector bay.<br />It&#39;s also possible to flip the signal cable to the power amplifier left/right<br />to help diagnose but if you are not into servicing electronics, and particularly B&amp;O,<br />I suggest you leave it to someone who is. It doesn&#39;t sound like a very costly repair.</p> <p>Martin</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220383.aspxThu, 06 Aug 2009 15:03:30 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220383lausvi0https://archivedforum.beoworld.org:443/forums/thread/220383.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220383<p>Faulty mute relay? (Try switching mute on and off several times)</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220372.aspxThu, 06 Aug 2009 13:50:23 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220372Peter0https://archivedforum.beoworld.org:443/forums/thread/220372.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220372<p>Well something has gone pop in the L power amplifier. You will need to track the signal.I would look for a burnt component or a crack in the solder. Check that both the metal loops are both there connecting the pre and power amplifiers though! </p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/220312.aspxThu, 06 Aug 2009 07:01:53 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:220312NathanS0https://archivedforum.beoworld.org:443/forums/thread/220312.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=220312<p>Having added a 5500 system to my ever growing collection, I have noticed a sudden loss to all sound comming out of the Left hand channels. SPK1, SPK2 and Headphones - irrespective of audio input.&nbsp; Have switched speakers round - not a speaker issue</p> <p>The line out channels are fine.</p> <p>Any idea as to whether this is a capacitor issue or just loose solder ?</p><div style="clear:both;"></div>