https://archivedforum.beoworld.org:443/forums/29.aspxHave a specific BeoGram Record Deck related question? Ask here.enCommunityServer 2008 SP2 (Build: 31104.93)https://archivedforum.beoworld.org:443/forums/thread/335294.aspxThu, 18 Aug 2011 09:30:05 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:335294tournedos0https://archivedforum.beoworld.org:443/forums/thread/335294.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=29&PostID=335294<p>All four channels are carried over in the same 5-pin DIN cable. However, the cables that actually have wiring for all four channels should be noticeably thicker. While quadraphony went out of fashion, I believe the option became more theoretic towards the end of the production run, and only 2-channel wiring may have been installed.</p> <p>I think opening the top and taking a look is the only sure way to know the decoder has been installed - but the thinner cable and/or a missing &quot;CD4&quot; switch under the right edge should confirm it is <i><b>not </b></i>there!</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/335292.aspxThu, 18 Aug 2011 09:13:47 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:335292Keiko50https://archivedforum.beoworld.org:443/forums/thread/335292.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=29&PostID=335292<p>Does a Beogram 4002 that has the&nbsp;optional built-in CD4 demodulator have different&nbsp;wires and plugs than the standard 4002?&nbsp; When I&nbsp;used to run CD4 in the mid-70s my turntable two wires&nbsp;plugged into the Panasonic CD4 demodulator which then had&nbsp;four wires that plugged into a 4 channel preamp.&nbsp; Does a CD4-capable 4002 also have four wires (plus a ground) to feed directly into a 4 channel amp?&nbsp; Other than removing the top and checking for the presence of a CD4 circuit board, is there another way to positively ID a CD4 capable 4002?</p> <p>&nbsp;</p> <p>Kevin</p><div style="clear:both;"></div>