Infocus IN3924 ユーザーズマニュアル

Connect the audio source to the Audio In or Audio L/R connectors to hear audio 
through the projector speakers. You may use the projector’s speakers by connecting 
a microphone to the Microphone input connector.

Amplified speakers may also be connected to the projector using the Audio Out 
connector.

To adjust the volume, press the Volume buttons on the remote.

If you aren’t hearing the audio, check the following:

•

Make sure the audio cable is connected to the Audio In or Audio L/R 

connectors on the projector, and that the other end of the cable is connected to 
an Audio Out connector on the source (not a “line-in” or “microphone” 
connector).

•

Make sure the volume is turned up enough. Press the Volume button on the 
remote.

•

Make sure the correct source is active.

•

Adjust the audio source.

•

If playing a video, make sure the playback has not been paused.

connect PC audio cable

connect video source audio 
cable

connect microphone