LG Plasma TV sets are manufactured with different input jacks to connect a variety of audio-video components, including self-powered speakers. You must use speakers with a built-in amplifier because the audio output on the LG television is line-level only. That means it does not produce enough power to drive the volume on a speaker. A set of desktop computer speakers make an ideal solution for expanding the audio of your LG TV since they take up little space, are self-powered and connect in seconds with a Y-adaptor audio cable.
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Things you need
Turn off the power to your LG television before connecting or disconnecting any device to the set.
Insert the white and red plugs on one end of the Y-adaptor cable into the colour-matching audio outputs on the back of the LG set.
Connect the smaller stereo plug on the other end of the Y-adaptor to the input jack for the external speakers, typically on the right-channel speaker.
Plug in the DC power cord to the external speakers and connect the other end to an electrical socket.
Turn on the LG television and press the "Menu" key until the audio options screen appears. You can turn off the set's built-in speakers by highlighting the "Speakers" option with the down arrow key, then press the right arrow key to switch them off.
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