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I have gotten my new Samsung 32 inch LCD TV hooked up with Samsung DVD Player. PQ is Awesome!! I ran a cable from my digital out on the DVD player to my DAC on my 2 Channel Audio System, and now have a Ground Hum. I had this before with my VCR and never was able to solve it.I have solved Ground Hum problems before, by using cheater plugs etc. - But this time, I have no clue what to do.
If I disconnect the TV antenna the ground Hum is slightly reduced. Unplugging the Surge Protector (3 Prong) with the TV, HD Tuner, and DVD PLugged into it removes the Ground Hum Completely. The 2 channel Audio System consists of a Pre-amp, Pair of 45 SET Monoblocks, Tuner, CD Player and DAC. When the Surge Protector (containing all the TV Components) is unplugged, I can connect the TV antenna and the Ground Hum Returns. Then plugging in the Surge Protecter it gets even louder.
I cannot use my audio System with my TV until I solve this. It appears I have 2 problems - The Plug in of the Surge Protector and the Antenna.
Any Ideas? - Thanks.
Cut-Throat
Follow Ups:
Would the ground loop be returning thru the shield of the coaxial? maybe using an optical would "float" the ground?
nt
Cut-Throat
You could try leaving all components hooked up as is, power wise, and disconnect only the coaxial from your DAC. If the hum disappears then, it might be worth it to try to beg, burrow, or steal some type of coaxial to toslink digital converter.There are some very inexpensive converters available. I have one toslink and one coaxial output from two HDTV receivers going to a Monarchy DIP 24/96 to drive a long 50' coaxial cable to my HT receiver's internal DAC. It isolates the ground to remove problems like yours. If you are using PCM digital, you probably need the Classic version. You can get it from Audio Advisor, and return it if it doesn't work out.
Another thing you can do is buy a pack of lightweight jumper wires with alligator clips from somewhere like Radio Shack. I found that sometimes different components need extra hard wire grounds between the two to stop hums. You can also try connecting one end of the cables to the outer case/shields of certain interconnects, connecting to the chassis of other components. If the jumpers not long enough, just piggyback them together. Then you can replace them with regular 14-12 awg ground wires, connected to chassis screws with eyelet terminal connectors.
My audio system is still connected to my Attic Antenna via the Tuner, so this is not the problem.
Cut-Throat
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