Quick answer
- The "ng lr" error code indicates a problem with the left and right speaker connections.
- This error can occur due to loose cables or incorrect speaker settings.
- Check the speaker wires and connections to ensure they are secure.
- If necessary, reset your Onkyo receiver to restore factory settings.
Symptoms
When you encounter the "ng lr" error code on your Onkyo receiver, you may notice:
- No sound coming from the left or right speakers.
- The receiver may display the error message on the screen.
- Other audio-related issues, such as distortion or intermittent sound.
Quick checks
Before diving into more detailed troubleshooting, try these quick checks:
- Ensure that all speaker wires are connected properly and securely.
- Verify that the speakers are powered on (if applicable).
- Check if the receiver is set to the correct audio mode for your setup.
- Inspect the HDMI cables for any visible damage.
Step-by-step fix
- Turn off the receiver: Unplug the power cord from the outlet to ensure safety while you check connections.
- Inspect speaker connections: Open the receiver’s speaker terminals and check that the wires are securely connected to both the receiver and the speakers. Look for any frayed or damaged wires.
- Reconnect the cables: If any wires are loose, reconnect them firmly. If you notice damage, consider replacing the cables with a high-quality option like a Certified Ultra High Speed HDMI cable (paid link).
- Check speaker settings: Power on the receiver and navigate to the speaker settings menu. Ensure that the left and right speakers are enabled and configured correctly.
- Reset the receiver: If the error persists, perform a factory reset. Refer to your receiver’s manual for instructions on how to reset it.
- Test the system: After resetting, reconfigure your settings and test the audio output to see if the error has cleared.
If it still doesn't work
If you have followed the steps above and the "ng lr" error code remains, consider the following:
- Check for any firmware updates for your Onkyo receiver and apply them if available.
- Test the speakers with another audio source to rule out speaker malfunction.
- Consult Onkyo customer support for further assistance.
Thinking About Upgrading Your AV Receiver?
If your receiver is causing recurring HDMI, eARC, or audio issues, it may be worth evaluating whether a newer model solves the problem at the hardware level. Our best AV receivers under $500 guide covers current picks with HDMI 2.1, eARC, and Dolby Atmos — including the Denon AVR-S770H and Yamaha RX-V4A which handle modern 4K/120Hz passthrough reliably.
FAQ
Q: What does "ng lr" mean?
A: It indicates a problem with the left and right speaker connections.
Q: How can I reset my Onkyo receiver?
A: Refer to your user manual for specific instructions on performing a factory reset.
Q: Can damaged cables cause this error?
A: Yes, damaged or loose cables can lead to the "ng lr" error code.
Q: What should I do if my speakers are still not working?
A: Test the speakers with another device to ensure they are functioning properly.
Q: Is there a way to troubleshoot HDMI issues related to this error?
A: Yes, you can check our guides on HDMI issues, such as the Denon receiver eARC HDMI issues troubleshooting guide.