LG USC9S Owner's Manual page 4

Manually connecting the sound bar to the wireless subwoofer or wireless
receiver ([ See "Connecting the wireless subwoofer manually", "Manual
connection" on page 8, 10.)
If you see a red LED on the wireless subwoofer or on the front of the wireless receiver, it means that the
sound bar is not connected to the speakers. If this is the case, connect them in the following order.
A Press the Power
B Press the Pairing (PAIRING) button on the back of the disconnected wireless subwoofer or wireless
receiver. Check if each LED blinks green.
- If you still see a red LED on the wireless subwoofer, press and hold the button on the back of the
subwoofer again.
C Press the Power
D When the connection is established, you will see a green LED light on the wireless subwoofer or on
the front of the wireless receiver light up green.
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button on the sound bar to turn it off.
button on the sound bar to turn it on.