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[LCD/LED/OLED TV] Connecting Digital Amplifiers

  • How to: Installation and Settings
  • Others
  • Troubleshooting
  • TVs
  • Last Updated 05/26/2014


Connecting Digital Amplifiers



Connect the digital amplifier’s digital sound input terminal and TV’s optical digital sound output terminal

with an optical cable.

 - Output from the digital amplifier should support the sound format.

 - Dolby Digital is surround sound system for theaters.


Connect the  product to a Dolby digital converter or a 5.1 channel amplifier for the best experience.





How To Use


When connecting to a  home theater system with a HDMI cable or connecting to a external sound device,

set TV speaker as external speaker as follows. When speakers of the TV and the home theater system or

the external device work at the same time, it will create an echo.


1. Press Settings and then Sound. Select Speaker Output andOptical digital/HDMI ARC.




2. Turn on the connected device.


  - Also refer to the manual of the audio device that you are connecting.
  - Before connecting this product to other devices, turn off all devices and pull the plug.
  - Adjust the sound volume of the receiver as the sound output of this product is broadband.

    A sudden high-pitched sound may damage the speaker.

  - Connecting TV’s optical digital sound output terminal with the digital amplifier’s digital sound input terminal
    and connecting  TV’s sound input terminal and the digital amplifier’s analog sound output terminal will create a
    loop and   damage the sound quality.  Remove one of the two connections (Same for the home theater system).

If the problem is not resolved, please call  LG Support representative on 1800-180 -9999 (Toll Free)


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The solutions provided herein  might vary based on the models, please verify before implementing.
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