I have a new samsung led tv model und406000sfxza. I have it connected via hdmi cable to a DirectTV HE receiver. When i try to connect my external speakers vai a AV amp I get a loud humming in the speakers. The amp is connected to the TV through the supplied 3 to three connector from the TV audio/video output port. I am only connecting the audio cables. When I connect the amp to my Direct TV receiver, they work fine, but are out of sync with the TV speakers and I cannot control the volume with my remote. I really want to connect the amp to the TV but it just makes the humming sound. I have tried two different amps with same result. This set up worked with my old analog Sony TV and a std def satellite receiver.
Any ideas what I need to do to fix this?
TIA
Anyone hav

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