Orbit Pro - Fix No Sound – Avantree Support

No sound from Orbit Pro is usually caused by an incompatible TV audio format, an incorrect audio connection, or disconnected Bluetooth headphones. Start by checking the audio signal indicator, then follow the steps below.

Check the Audio Signal Indicator and TV Settings

A flashing red indicator means Orbit Pro is not receiving a valid audio signal, which may happen when your TV's digital audio format is not set to PCM.

Play a program with sound on your TV and check Orbit Pro's red audio-signal indicator.

Solid Red

Audio signal detected. Continue to Step 3 to check your headphones.

Flashing Red

No valid audio signal. Check your TV settings below.

If the indicator is flashing red, check the audio settings for your connection.

Optical (OPT)

Set the TV's Digital Audio Output to PCM / Stereo.

Find PCM Settings for Your TV Brand

Using a cable box or streaming device? If regular TV channels have sound but streaming apps do not, the streaming device may be using an incompatible audio format. Set its audio output to PCM / Stereo when available.

How to Set PCM for Streaming Devices / Cable Boxes

HDMI ARC

Select HDMI ARC / External Speaker as the TV's sound output.

Set Digital Audio Output to PCM / Stereo. If needed, turn eARC OFF and test again.

AUX / RCA

Select Headphone / Audio Out on the TV, if required.

Increase the TV's headphone output volume.

Still flashing red after changing the settings? Continue to Step 2 – Check the Audio Connection. If the indicator is now solid red, skip to Step 3.

Check the Audio Connection

If the indicator is still flashing red, Orbit Pro may be using the wrong operating mode, input selection, or audio connection.

Set Orbit Pro to TX (Transmitter) mode.
Select OPT, HDMI, or AUX to match your audio connection.
Reconnect the audio cable securely at both ends. Make sure it connects the TV's audio output to Orbit Pro's matching input.
Play TV audio again. If the indicator is still flashing, try another compatible audio cable.

Connection reminder: For HDMI ARC, use the TV port labeled ARC / eARC. For RCA, use Audio OUT, not Audio IN.

Once Orbit Pro detects the audio signal, continue to Step 3 to check your headphones.

Check the Headphone Connection and Volume

If Orbit Pro is receiving TV audio but you still cannot hear anything, your Bluetooth headphones may be disconnected or the volume may be too low.

Check Orbit Pro's LCD screen for your headphone name and connection status.

If Your Headphones Are Not Connected

Turn Bluetooth OFF on nearby phones or tablets previously connected to your headphones.
Put your headphones into Bluetooth pairing mode.
Short-press the Search button on Orbit Pro.
Select your headphone name on the LCD screen and wait for Connected.

How to Put Bluetooth Headphones in Pairing Mode

If Connected but Still No Sound

Increase the volume on your Bluetooth headphones and press Orbit Pro's Volume + button to raise the output level. Then play TV audio again.

Still Need Help?

Tell us your TV and headphone models, whether you're using Optical, HDMI ARC, or AUX, whether the red indicator is solid or flashing, and the Bluetooth connection status shown on Orbit Pro's LCD screen.

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