There is no sound. What should I do?

• If there is no sound when you expect it or the volume is too low or high, try the following solutions:

  • Adjust the projector's volume settings.
  • Press the  mute button on the remote control to resume audio if it was temporarily muted.
  • Check your computer or video source to make sure the volume is turned up and the audio output is set for the correct source.
  • Check the cable connection between the projector and your video source.
  • If you do not hear sound from an HDMI source, set the connected device to PCM output.
  • If you want to output audio from the projector's speakers, check that the Sound Output setting is correct in the Sound menu.
  • If you want to output audio to an external audio device using an HDMI cable, try the following solutions:
    • Make sure the HDMI cable is connected to the projector's HDMI2 (ARC) port
    • Make sure the sound is output from the projector's speakers or Optical Out port
    • Enable HDMI CEC in the Settings menu
    • Enable HDMI2 ARC in the Settings menu
    • Set Other Than HDMI3 (Game) to ARC/Optical (PCM) in the Sound menu.
    • Make sure the HDMI cable is compliant with HDMI ARC

    Note: When outputting audio to an external audio device that does not support HDMI ARC using an HDMI cable, disable HDMI CEC in the Settings menu.

  • If you want to output audio to an external audio device using an optical digital audio cable, check that the Sound Output setting is correct in the Sound menu.
  Related references
  Projector Feature Settings - Settings Menu
  Sound Quality Settings - Sound Menu