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Fix a TV that has eARC that will not work

We'll check the eARC port, CEC, cable, and settings—or tell you when to call a technician.

Troubleshooting · Home electronics
5–15 min
What you'll need
  • TV remote
  • Soundbar or receiver remote
  • Ultra High Speed HDMI cable (HDMI 2.1) for full eARC
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Steps

Goal: Confirm the eARC port and CEC, then rule out cable and settings.

  • Confirm the soundbar is connected to the TV HDMI port labeled eARC. eARC only works on that port.
  • Good: You have confirmed the connection. Proceed to Check eARC port and CEC.
  • Bad: No sound at all from TV—see fix-tv-has-no-sound.

Check eARC port and CEC

Goal: Confirm the HDMI eARC port and HDMI-CEC are enabled.

  • Check the soundbar HDMI cable goes to the TV port labeled eARC.
  • Enable HDMI-CEC in TV Settings. Enable it on the soundbar too.
  • Good: eARC port and CEC enabled. Sound appears. Done.
  • Bad: Still no sound—proceed to Check cable and settings.

Check cable and settings

Goal: Confirm the cable supports eARC and the TV sends audio to eARC.

  • Use an Ultra High Speed HDMI cable (HDMI 2.1) for full eARC.
  • Open TV Settings > Audio. Select HDMI eARC or external speaker.
  • Reseat the HDMI cable at both ends.
  • Good: Cable and output correct. Sound appears. Done.
  • Bad: Still no sound—proceed to Power-cycle.

Power-cycle

Goal: Reset the eARC handshake between TV and soundbar.

  • Unplug the TV and the soundbar from power. Wait 30 seconds. Plug both back in. Turn on the soundbar first, then the TV.
  • Good: Power-cycle fixes the issue. Sound appears. Done.
  • Bad: Still no sound—try ARC fallback or call a technician.

When to get help

Call a TV or audio technician if:

  • You have checked port, CEC, cable, settings, and power-cycle and eARC still does not work.

Verification

  • The TV sends audio to the soundbar over HDMI eARC.
  • The soundbar plays sound from the TV (built-in apps, antenna, other HDMI sources).
  • CEC is enabled on both TV and soundbar.
  • The HDMI cable is firmly connected and supports eARC.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. eARC port and CEC Confirm eARC port; enable CEC on TV and soundbar.
  2. Cable Use Ultra High Speed HDMI cable; reseat at both ends.
  3. Audio output Set TV audio output to HDMI eARC or external.
  4. Power-cycle Unplug TV and soundbar for 30 seconds; plug back in.
  5. Call a pro eARC does not work after all checks.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • TV model
  • Soundbar or receiver model
  • HDMI cable type (Ultra High Speed, High Speed)
  • Steps already tried

Is the soundbar connected to the TV eARC port?

eARC only works on the port labeled eARC or ARC.

Check the HDMI cable from the soundbar. It must go to the TV port labeled eARC or HDMI (eARC/ARC). Connected to eARC port: check CEC and cable. Wrong port: move cable to eARC port, then test.

Yes No

You can change your answer later.

Move cable to eARC port

Move the HDMI cable to the TV port labeled eARC. Use Ultra High Speed HDMI cable. Enable CEC on TV and soundbar. Set TV audio output to HDMI eARC. Test.

Done

Is HDMI-CEC enabled and cable Ultra High Speed?

eARC needs CEC and a capable cable.

Enable CEC on TV and soundbar. Use Ultra High Speed HDMI cable (HDMI 2.1) for full eARC. Set TV audio output to HDMI eARC. Both done: power-cycle. Cable or CEC issue: fix and test.

Yes No

You can change your answer later.

Enable CEC and use Ultra High Speed cable

Enable CEC on TV and soundbar. Replace cable with Ultra High Speed HDMI. Set TV audio output to HDMI eARC. Power-cycle TV and soundbar. If sound appears, done. If not, try ARC fallback or call a technician.

Done

Power-cycle and test

Unplug TV and soundbar for 30 seconds. Plug back in. Turn on soundbar first, then TV. If sound appears, done. If not, try ARC fallback or call a technician.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would TV eARC not work?
Wrong HDMI port, CEC disabled, wrong audio output, cable not supporting eARC (need Ultra High Speed for full eARC), or handshake issue. eARC has higher bandwidth than ARC.
Can I fix TV eARC that will not work myself?
Yes. Check the eARC port, CEC, audio output, and cable. eARC needs a capable cable—Ultra High Speed for full eARC. Many issues are port, CEC, or cable related.
When should I call a technician for eARC that will not work?
If you have checked port, CEC, settings, cable, and power-cycle and eARC still does not work. The HDMI eARC circuit or soundbar may need repair.

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