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3D TV, High Definition Television, HDTV 4K and AV
Hi Fi section
Phono Stage noise on my amp
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<blockquote data-quote="jeallen01" data-source="post: 992601" data-attributes="member: 176704"><p>May I suggest that the problem could be the "dreaded" and "infamous" "hum loop!</p><p></p><p>That often happens (been there!) when the AV receiver and all the connected units (CD player, Skybox, etc., etc.) are all "Class II (yes "II", not "2") Double-Insulated units that don't need, and don't have, a connection to the mains supply earth conductor.</p><p></p><p>I "solved" this issue by connecting a conductor from the earth pin of a 13A plug inserted into one of the mains wall sockets to the AV receiver chassis, and then linking the chassis' of all the other units, including the t/t, to that - doing this creates an "equipotential" situation between the chassis' of all those units, which eliminates the potential (voltage) differences between the various units in the system.</p><p></p><p>Try that and see if it works.</p><p></p><p>Edited: Sorry, missed the intervening posts but they, sort of, relate the same issue/solution.</p></blockquote><p></p>
[QUOTE="jeallen01, post: 992601, member: 176704"] May I suggest that the problem could be the "dreaded" and "infamous" "hum loop! That often happens (been there!) when the AV receiver and all the connected units (CD player, Skybox, etc., etc.) are all "Class II (yes "II", not "2") Double-Insulated units that don't need, and don't have, a connection to the mains supply earth conductor. I "solved" this issue by connecting a conductor from the earth pin of a 13A plug inserted into one of the mains wall sockets to the AV receiver chassis, and then linking the chassis' of all the other units, including the t/t, to that - doing this creates an "equipotential" situation between the chassis' of all those units, which eliminates the potential (voltage) differences between the various units in the system. Try that and see if it works. Edited: Sorry, missed the intervening posts but they, sort of, relate the same issue/solution. [/QUOTE]
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3D TV, High Definition Television, HDTV 4K and AV
Hi Fi section
Phono Stage noise on my amp
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