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  • Updated

Prolink - Fix No Sound

  • Updated
No sound from ProLink may be caused by an incorrect USB audio output, a lost connection between the DG60L transmitter and AS70P receiver, low volume, or disconnected or faulty wired earphones.
1

Check the USB Audio Output

Make sure DG60L is selected as your computer's audio output device.

I'm Using Windows
  1. Open Settings → System → Sound.
  2. Under Output, select the DG60L USB audio device.
  3. Make sure the output is not muted.
  4. Increase the volume and test the audio.
I'm Using Mac
  1. Open System Settings → Sound.
  2. Under Output, select the DG60L USB audio device.
  3. Play music or a video and check the volume.
DG60L Doesn't Appear as an Audio Device
  1. Unplug the DG60L from the USB port.
  2. Reconnect it directly to the computer, without a USB hub.
  3. Try another compatible USB port.
  4. Restart the computer and check the audio output settings again.
Important: A powered USB port does not necessarily support USB audio output. Check compatibility if you're using ProLink with a device other than a computer.
2

Check the DG60L and AS70P Connection

Connected

The DG60L and AS70P are connected. Go to Step 3 if there is still no sound.

Alternating Red / Blue

The device is in pairing mode. Follow the reconnection instructions below.

AS70P Won't Reconnect to DG60L
  1. Unplug the DG60L from USB.
  2. Turn off the AS70P receiver.
  3. Reconnect the DG60L to the USB port.
  4. Turn on the AS70P and keep it close to the transmitter.
  5. Wait for the devices to reconnect.
How to Reconnect ProLink
AS70P Keeps Connecting to My Phone
  1. Open your phone's Bluetooth settings.
  2. Disconnect Avantree AS70P.
  3. Temporarily turn off Bluetooth on the phone.
  4. Restart the AS70P receiver.
  5. Wait for it to reconnect to the DG60L.
3

Check the Earphones and Volume

  1. Make sure your wired earphones or headphones are fully plugged into the AS70P's 3.5 mm headphone jack.
  2. Press Volume + on the AS70P receiver.
  3. Increase the volume on your computer or audio source.
  4. Play music or a video again.
Still No Sound? Try Different Wired Earphones
  1. Unplug the current earphones from the AS70P.
  2. Connect another working pair of compatible wired earphones or headphones.
  3. Play audio and gradually increase the AS70P volume.
If the replacement earphones work: The original earphones or their cable may be faulty.
Still Not Connecting? Reset ProLink

If restarting the devices does not restore their wireless connection, you can clear their saved Bluetooth pairings.

Reset the DG60L transmitter:

  1. Keep the DG60L plugged into a powered USB port.
  2. Hold the Multi-Function Button for 2 seconds until the red and blue LEDs illuminate together.
  3. Double-click the same button.
  4. The LED appears pink for about 2 seconds, then flashes red and blue alternately.

Reset the AS70P receiver:

  1. Turn on the AS70P.
  2. Press and hold Volume + and Volume − together for 5 seconds.
  3. The LED appears pink for about 2 seconds, then flashes red and blue alternately.
Important: Resetting clears saved Bluetooth connections. You'll need to reconnect the DG60L and AS70P afterward.
Complete ProLink Factory Reset Guide

Still Need Help?

Please tell us which computer or audio source you're using, the LED behavior on the DG60L and AS70P, and whether you've tested another pair of wired earphones.

ASK A QUESTION

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