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Loud humming noise from new hdtv

I just bought this new tv:

Right of the box, as soon as I turn on the power and connect the speakers, there is a very loud hum coming out of the speakers. Normal sound is functional but the hum is almost loud enough to drown out the TV when it is at a low volume. Even with no cable/antenna attached, the TV hums by itself as long as the speakers are connected. I have tried using computer speakers and subwoofer and those do not produce any humming noise.

The only possible reasons I've thought of are: 1) I use a small indoor antenna to receive tv signals, or 2) the electric outlets in my house do not have the 3rd prong, so I have to use a cheater plug. Could these be causing the hum, or is my product just defective?

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Hello, the speakers are fualty or have a shorted connection if they came with the tv contac your seller and arrange for a replacement imediately dont wait. since they are giving you feedback dont use them they may cuase other fualts in your tv, any component thats cuases hum or noise when pluged into the tv should not be used at all.

one important thing is to have a grounded plug this also may cuase fualts down the line,
if posible get a power line conditioner or ups (uniteruptable power supply)

flat panels are very over protective you dont want the tv to start blinking. since flat panels have built in protection circuts any slight short or fualt may cuase the wide screen to go into circut shutdown mode and this will cost you more if the speakers create a short in your audio circut it may damage your widescreen internal boards and cuase a system shutdown circut (red light flashing no picture)

contac your sellers site let them know your speaker are cuasing a loud hum
and that you will need the speakers replaced these are definitely fualty
if you dont have any coverage or you got the set as is then dont take any chances use other speakers.
if you are electronically inclined you can open these up and find out whats wrong with them internaly it may be a loose connection, since opening up the equipment may void your warantee contac the store first see what they say..
good luck happy holidays

Posted on Dec 11, 2008

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