24 | TROUBLESHOOTING
Problem Solution
No sound in HDMI 1 and/or 2
• The unit may not be able to decode all digital audio formats from the input source. In this
case, the unit will mute. This is NOT a defect. Ensure that the audio setting of the external
device is set to PCM or Dolby Digital.
• Ensure that the input source is set to HDMI 1 or 2. The LED will display Hd1/Hd2.
• Check that the HDMI cable is securely connected to the HDMI 1 / HDMI 2 ports.
No sound in USB mode • Make sure the USB drive is in FAT32 file format, and it’s no greater than 32GB;
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, press the mute button on your TV’s
remote control to unmute.
• If none of these solutions work, try changing the HDMI cable.
No sound in Optical mode
• Make sure the input source is set to the correct mode; the LED will display 'OPTI'.
• Increase the volume of the soundbar to make sure it’s not muted.
• 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 none of these solutions work, try changing the optical cable.
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