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Vizio 2.1 ch. Sound Bar with Wireless Subwoofer - Home Theater Systems Questions & Answers
Woofer is humming
Usually a faulty cable or blown speaker will cause a humming. If it is a constant humming I would surmise a faulty cable. On the other hand, if the humming comes and goes I would guess a faulty speaker.
Subwoofer is hummig what is this noise
Hum is a constant low-frequency buzz, usually at about 60 Hz or 120 Hz, which results from voltage differences between true "ground" (what you'd get shoving a copper pipe into the ground) and the electrical "ground" of your receiver's chassis When this voltage differential exists, it's called a "ground loop," and the hum it produces is darned annoying. You'll hear the hum mainly from the subwoofer because it's a low-frequency noise, you will need a ground loop insulator they are about $20 at any electronic store
Vizio remote control won't work with tv..
Just unplug the TV from the power outlet and hold down the power button on the side of the TV for 15 seconds. Doing this drains residual power and can clear up odd issues. Then plug the TV back in and power it on. Test the remote again to see if it's working.Mar 10, 2015
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