Question about RCA 20F420T 20" TV
Without knowing the specifics on this adapter - I can provide only provide some clues as to how this works.
Basically, the A/V jacks on a TV has a "fixed" audio output level - this means that the sound levels on the A/V jacks is NOT controlled by the volume control of the TV itself. You should be able to set the TV volume to minimum and then use the adapter's volume control to make the earphone / headphone sound louder and softer. Your TV however, may have a setting in the menu that can change the audio from "fixed" to "variable". If set to "variable", when turning the volume down for the TV's built in speakers will also turn the volume down on the A/V jacks as well. You do not want this to work like that as the sound in the headphones and the TV speakers will be same - instead of the TV speakers being off and the headphones on.
I hope this helps and good luck! Please rate my reply. Thanks!
Posted on May 26, 2011
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Posted on Jan 02, 2017
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