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Onkyo · Cables & Connections · 2026-02-26

Onkyo tx nr6100 arc not working

Onkyo tx nr6100 arc not working

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Quick Answer

Symptoms

You might notice the following issues when trying to use ARC with your Onkyo TX NR6100:

Quick Checks

Before diving into detailed troubleshooting, perform these quick checks:

Step-by-Step Fix

  1. Check HDMI Connections: Make sure the HDMI cable is plugged into the HDMI ARC port on both the TV and the Onkyo receiver.
  2. Enable ARC in Settings: On your TV, navigate to the audio settings and ensure ARC is enabled. Similarly, check the Onkyo receiver settings for ARC activation.
  3. Use the Right HDMI Cable: If you're not using a certified HDMI cable, consider upgrading to a Certified Ultra High Speed HDMI cable (paid link) to ensure compatibility.
  4. Update Firmware: Check if there are any firmware updates available for your Onkyo receiver. Updating can resolve compatibility issues.
  5. Restart Devices: Power off both the TV and the Onkyo receiver. Unplug them for about 30 seconds, then plug them back in and turn them on.
  6. Test with Another Device: If possible, connect a different HDMI device to the ARC port to see if the issue persists. This can help identify if the problem lies with the TV or the receiver.

If It Still Doesn't Work

If you've followed the steps above and ARC is still not functioning, consider the following:

FAQ

Q: What is ARC?
A: ARC stands for Audio Return Channel, which allows audio to travel both ways through an HDMI cable between a TV and a receiver.

Q: Can I use any HDMI cable for ARC?
A: While standard HDMI cables may work, it's best to use a certified High Speed or Ultra High Speed HDMI cable for optimal performance.

Q: Why is my TV not recognizing the Onkyo receiver?
A: This could be due to incorrect settings, a faulty HDMI cable, or a compatibility issue. Double-check all connections and settings.

Q: What should I do if my audio is out of sync?
A: Check the audio delay settings on both your TV and receiver. Adjusting these settings can help synchronize the audio.

Q: Is there a difference between ARC and eARC?
A: Yes, eARC (Enhanced Audio Return Channel) supports higher bandwidth and more advanced audio formats compared to standard ARC.

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