Amplifier/speaker connection problem

How to turn off the TV speakers and only let the speakers play sound？

 

1.    Go to the Home Screen.
2.    Select [All Settings].
3.    Navigate to [Sound].
4.    Choose [Speakers] and set it to Off.

What Connection Methods Does the Speaker Support?

1. 3.5mm Connection
2. HDMI ARC/eARC Connection
3. Optical Connection