Troubleshooting
• There is no sound output to the headphones or speakers:
Possible solutions:
1. The input selector switch ⑧ may be set to the wrong input source. Change the position of
the switch to see if normal output resumes.
2. Try disconnecting and reconnecting the power ⑬.
3. Disconnect and reconnect the USB cable to reinitialize the USB audio driver ⑩.
4. Check to see that the volume switch is turned on and set to a reasonable volume ④.
5. Your system’s audio format may be set to an incompatible format. Check your speaker
properties to set the format to either “24 bit, 48000 Hz” or “24 bit, 96000 Hz”. You may need
to restart your system after changing this setting (See Figure 1).
6. Your system may be set to use the built-in sound device instead of the ARC. Check your
device manager’s sound properties to ensure the ARC is set as the default audio device (See
Figure 2).
• The speakers do not produce any sound or the sound is barely audible:
The ARC only allows the connection of powered speakers. If your speakers are not self-
powered or the speaker power is turned off, you will not have sufficient volume. Use the
volume control on your speaker system to set the volume to an appropriate level.
• The ARC doesn't seem to work with my Xbox or other system:
It's possible that your system's USB connection is not able to recognize the ARC as an audio
device. In this case you will need to use the optical TOSLINK connection ⑫ instead. Be sure to
move the input selector switch ⑧ to the optical position if using the TOSLINK connection.
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