Step-By-Step Procedure:

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1. Press Quick Setup Menu button to access the menu

2. Press V button on the D-pad to select Settings

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3. Press OK button to enter Settings menu

4. Select Sound

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5. Go to Advanced Audio Settings

Under TV Speaker: Disable the TV speaker when you are using a sound bar, Select ARC or external audio amplifier [Nakamichi]

 

 

Digital Audio Out: Choose RAW (which is uncompressed audio in RAW form) if you have 5.1 Channel Surround Sound Speaker set up.

 

Audio Out: Select ARC or external audio amplifier [Nakamichi]