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HT5009 Plus - Fix No Sounds

  • Updated
NO SOUND TROUBLESHOOTING

HT5009 Plus – No Sound From Headphones?

Follow these steps to restore TV sound on your HT5009 Plus.

Before You Start: Turn on the transmitter and headphones. Play a TV channel or video with sound.

Step 1 – Check the TV Audio Cable

  1. Make sure the cable is firmly connected at both ends.
  2. Connect the TV's audio OUT port to the transmitter's INPUT port, not OUTPUT.
  3. Use only one audio connection – Optical or 3.5 mm AUX, not both:
    • OPT – Optical cable.
    • AUX – 3.5 mm cable.

Step 2 – Check TV Audio Settings

Select your connection:

Using an Optical Cable
  1. Connect TV Optical OUT to transmitter OPT IN.
  2. Set TV Sound Output to Optical / Digital Audio Out.
  3. Set Digital Audio Format to PCM / Stereo.
  4. Set the transmitter input to OPT.

Can't find PCM? Use the guide for your TV brand.

Find PCM Settings for Your TV →
Using AUX / 3.5 mm
  1. Connect TV Headphone / Audio OUT to transmitter AUX IN.
  2. Set TV Sound Output to Headphones Out.
  3. Increase the TV volume.
  4. Set the transmitter input to AUX.

Step 3 – Check the Audio Signal Light

Check the transmitter's OPT / AUX indicator while the TV is playing.

Solid White – Valid TV audio detected.
Flashing White – No valid TV audio detected.

If flashing white:

  1. Optical: Set TV Sound Output to Optical and Audio Format to PCM / Stereo.
  2. AUX: Set TV Sound Output to Headphones Out and increase the TV volume.
  3. Check the audio cable and make sure the transmitter input is set to OPT or AUX to match your connection.
Step 4 – Check the Headphone Connection
  1. Turn on the transmitter and headphones.
  2. Keep them close together and wait for them to connect.
Headphones – Solid Blue – Connected.
Transmitter – Solid White – Headphone 1 connected.

Headphones not connected? Follow the Pair & Lock guide.

HT5009 Plus Pair & Lock Guide →
Step 5 – Check the Volume
  1. Increase the headphone volume.
  2. Make sure the TV program is not muted.
  3. Try another TV channel or video.

Optical volume too low? Turn on the transmitter's Volume Boost switch for an extra 6 dB.

Only Certain Apps, Channels or Cable Box Have No Sound?
  1. Play the affected program.
  2. Set the TV or streaming device's audio format to PCM / Stereo.
Cable Box Audio Settings Guide →
Still No Sound? Restart the Connection
  1. Turn off the transmitter and headphones.
  2. Reconnect the TV audio cable.
  3. Turn on the transmitter.
  4. Turn on the headphones and test again.

Still No Sound?

Tell us your TV model, cable type, and transmitter/headphone LED colors.

Contact Avantree Support →

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