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/336255.aspxSat, 27 Aug 2011 12:07:30 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:336255ablaumeise0https://archivedforum.beoworld.org:443/forums/thread/336255.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=336255<p>So after fixing the power supply and the left amp I&#39;m finally testing the Beolab.</p> <p>One thing I noticed - both the AUX and Tuner connections were not working. I just assumed there was a fault in the preamp, but then I remembered that upon receiving the Beolab I had actually used the AUX-input for testing - though by using a RCA-Cable rather than a DIN one. So I used RCA again - and they both work fine. Used a needle to see if the DIN connectors would at least produce a hum - they did, but the pinout was reversed (1&amp;4 rather than 3&amp;5)? Checked the schematics, and that&#39;s how it&#39;s supposed to be?</p> <p>Could anybody enlight me as to why exactly? I guess I just don&#39;t see the point. I don&#39;t have the matching Beomaster here right now, but as I tested it on a Beolab 1700 (which has the non-reversed connection) and it worked fine, I&#39;m pretty sure the Beomaster has the &quot;wrong&quot; pinout for this connection (although it has the original B&amp;O-cable). I&#39;m tempted to just re-reverse the connections...</p> <p><img src="http://img830.imageshack.us/img830/8005/bildschirmfoto20110827u.png" alt="" /></p> <p>.</p><div style="clear:both;"></div>