Static Hum in speakers - traced to cable connection

dpowell
dpowell Posts: 3,068
edited June 2009 in Electronics
I have found that my upgrade bug and its subsequent equipment purchases for me has been, in the short term, nothing short of the hopeful naivety of Plug and Play when it was first released to the PC market.:eek:

First, it was backwards inpatibility with my Denon 3910 over HDMI and the amp or maybe the projector (I won't really ever know without another HDMI display entering the house) and most-recently a new hum in the speakers that somehow seems to be being transmitted from my Samsung HDTV tuner through the HDMI cable and affecting the Blu Ray player.:(

The crazy thing is that I don't get the static hum when the receiver is set to TV/SAT and receiving the HD signal from the tuner. I get it when I'm turned to other HDMI and non-HDMI inputs on the receiver (it's not all of them). The dimmer switches for the lights on separate circuits make the sound go crazy.

I tried grounding my amp to one of the RT3000 plate amps (which I had done in the past for a similar problem) since it is the only grounded piece of equipment in my whole setup but no dice. I finally traced it to the cable connection by unplugging the coax cable from the tuner and all of the sudden, problem gone.

Now what to do? This problem did not exist 2 days ago (that I'm aware of).
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polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
Post edited by dpowell on
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