I need help with my HK AVR 247 - AVS Forum
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post #1 of 3 Old 04-15-2009, 02:27 PM - Thread Starter
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If I have my subwoofer connected to the subwoofer pre-out and my tv connected thru ANY (hdmi, composite, component) video output there is a buzzing noise. If the pre-amp'd output is disconnected the hum goes away and if I unplug the video output the hum goes away. Assistance in this matter would be appreciated.
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post #2 of 3 Old 04-15-2009, 04:24 PM
 
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This sounds like a ground issue with you equipment, you can check your AC outlets to see if the ground wire's are properly connected.
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post #3 of 3 Old 04-15-2009, 06:03 PM - Thread Starter
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Thank you for the response. I ran an extention cord from another part of the house and the hum was still present. I also tryed two different subs and tested all the pre amp'd outs. It seems any combination of pre-amp outs and monitor outs cause the unit to hum.

I bought this unit as a refurb from the HK ebay store. I emailed them and they are suppose to respond withing two days. I am just worried because they state they will not cover the cost of shipping but hopefully they will if it is infact a defective unit.
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