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TROUBLESHOOTING | 27
Problem
Solution
No sound in HDMI ARC
mode
• Make sure the input source is set to ARC; the LED will display 'ARC'.
• Make sure your TV or external device supports ARC function and connect the HDMI cable to the ARC
port of the TV or external device.
• In the TV or external device setting menu, turn on the ARC function and the CEC function.
• In the TV or external device setting menu, find the audio output settings and change the audio output
mode to 'PCM' mode (instead of Auto, RAW, etc.)
• Make sure both ends of the HDMI cable are fully plugged into the sockets.
• If your TV or external device is muted or no sound output, the LED will flash 'ARC'; once audio signal
is available, the LED will display 'ARC'.
• If none of these solutions work, try changing the HDMI cable.
No sound in HDMI/
Optical/ Coaxial mode
• Make sure the input source is set to the correct mode; the LED will display 'Hd-1/Hd 2', 'OPTI' or
'COAX'.
• Increase the volume of the soundbar to make sure it’s not muted.
• In the TV or external device settings menu, find the audio output settings and change the audio
output mode to 'PCM' mode (instead of Auto, RAW, etc.)
• For optical, make sure you remove the small caps on either end of the optical cable, and both ends
are fully plugged into the sockets.
• If your TV or external device is muted or no sound output, the LED will flash 'OPTI' or 'COAX'; once
audio signal is available, the LED will display 'OPTI' or 'COAX'.
• If none of these solutions work, try changing the optical or coaxial cable.
• Make sure the input source of HDMI IN 1 or HDMI IN 2 is not over 2K video resolution.
No sound in BT mode
• Increase the volume of the soundbar to make sure it's not muted. Make sure Bluetooth is connected
successfully - if not connected, the LED will flash 'BT'; once connected, the LED will display 'BT'.
• Make sure the external Bluetooth device is playing normally and its volume is turned up.