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First verify that the mute is disengaged (toggle the mute button). Second, check the sound configuration to make sure the internal speakers are on, or check the sound output to make sure it is going to the inputs of an external audio amplifier (stereo receiver) and that the external amplifier is working. Try a different input source - perhaps the problem is your cable feed or DVD player. If the internal speakers are on, the volume is up, and you still don't get any sound from a known-good source (TV channel, DVD player, etc.), then try running the sound to a stereo system as described above. If that works, you may have a shorted speaker amplifier (depending on the set's design, this may blow a fuse supplying power to both left and right amplifiers or a speaker protection circuit will keep the speakers disconnected). These aren't usually hard to repair, but if you find a blown fuse, fix the amplifier before replacing the fuse or you'll just waste another fuse.
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!
My sound goes out on one station and none of the others. The only to get the sound back is to shut the TV off and then turn it back on. I suspect something was pressed on the remote, but I can't figure it out.
Wharfedale LCD3210HDAF this tv was working fine the night before ..
when i turned it on in the morning the screen came on then instantly
went blank .. although the sound is fine i am unable to get any on
screen including menu an volume information and of course can any one help ??
First, NEVER turn the volume all the way up to see what's wrong. If HALF volume doesn't work you're only risking a catastrophic speaker blowout if you should suddenly flick the switch that's causing the problem with FULL volume on.
Look for the MUTE or Volume +/- controls on the remote and indicators.
The fault may be on the control board. Sometimes the button switches can be stuck, or there may be something causing some conduction on the control circuit board. It is also possible to have a component failure that is causing a continuous command to keep the volume to the high position.
Something that causes failures of controls in TV sets is when people clean the screen, they spray liquid cleaner on the screen. Some of it drips down in to the controls and on to the circuit board. This will usually cause damage, and thus the set will require shop service.