Question about Vizio m420nv 42 in. LCD HDTV
Have tried everything also the advice with the knop. still no sound
Check whether the audio is muted by accidently. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
Posted on Nov 07, 2014
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Posted on Jan 02, 2017
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