Question about LG Televison & Video
Taking power lead out and leaving it a while
If the picture is OK, and only he audio is absent, the fault should be with its audio output circuit; or its speaker/s. Check whether the audio is muted by accidental press at remote control button. 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.
If all are faound OK, checka nd replace its main power supply regulator board. Visit the site linked above to get more details.
Posted on Nov 21, 2014
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Posted on Jan 02, 2017
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