HT381 - Troubleshooting: How to Fix No sound / Not Working Issue? – Avantree Support

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HT381 – No Sound / Not Working

If you cannot hear the TV through your HT381, follow these steps in order.

Step 1 – Turn OFF Ambient Mode

Look at the receiver LED. A solid RED light means Ambient / Hearing Assist Mode is activated.

Solid RED = Ambient Mode activated

To switch back to regular TV listening mode, simply press the Ambient button.

Ambient Mode is for hearing sounds around you. It is not the normal TV listening mode.

Step 2 – Check the Receiver Connection

Turn ON the HT381 transmitter and receiver.

Solid GREEN = Receiver connected

If the receiver is not solid GREEN:

Keep the receiver close to the transmitter.
Turn the receiver OFF.
Turn it back ON.
Wait a few seconds for a solid GREEN light.

Step 3 – Check the TV Connection

Using Optical

TV OPTICAL / DIGITAL AUDIO OUT → HT381 OPTICAL

In your TV Sound settings, select Optical / Digital Audio Out.

Digital Audio Format → PCM / Stereo

Find Your TV PCM Setting

Using AUX

TV Headphone / Audio OUT → HT381 AUX

Set the TV Sound Output to Headphones / Audio Out, then turn up the TV volume.

Optical: If there is no sound with Dolby, DTS, Bitstream, or Auto, select PCM.

Step 4 – Turn Up the Receiver Volume

Play something on the TV, then turn up the volume on the HT381 receiver until you can hear the audio comfortably.

Something Doesn’t Look Right?

Streaming App Has No Sound

Start playing the movie or show first. Then open your TV's Sound settings and select Digital Audio Format → PCM / Stereo.

View Streaming Device Settings

Using a Soundbar with HDMI ARC?

If the HT381 stops receiving TV audio while a soundbar or AV receiver is connected to HDMI ARC, check your TV Sound Output settings. Most TVs recognize only one audio output at a time.

Need More HT381 Help?

See all setup and troubleshooting guides for this product.

View HT381 Support

Still No Sound?

Contact Avantree Support and include your TV brand and model, whether you use Optical or AUX, the receiver LED status, and whether you use a soundbar or AV receiver.

Contact Avantree Support