How to Fix Sony Soundbar HDMI ARC Not Working
If your Sony soundbar is connected by HDMI ARC but still not producing TV audio, the problem usually comes down to settings, cable compatibility, or a handshake issue between the TV and soundbar.
This guide walks through the most reliable fixes so you can restore sound without guesswork.
What HDMI ARC does on a Sony soundbar
HDMI ARC, or Audio Return Channel, lets your television send audio back to a soundbar through the same HDMI cable used for video input on the TV.
On newer setups, eARC adds higher bandwidth and broader support for formats such as Dolby Digital Plus, Dolby Atmos, and uncompressed PCM.
For Sony soundbars, ARC depends on the TV’s HDMI ARC or eARC port, correct input selection, and enabled control features such as Bravia Sync or HDMI-CEC.
If any part of that chain is disabled, the connection may appear to work while audio never reaches the soundbar.
Check the basics first
Before changing advanced settings, confirm the physical setup is correct.
Many HDMI ARC issues are caused by a cable in the wrong port or a TV setting that was never enabled after installation.
- Connect the soundbar to the TV’s HDMI port labeled ARC or eARC.
- Use a high-speed HDMI cable, and for eARC use a certified Ultra High Speed HDMI cable if possible.
- Make sure the soundbar is set to the correct input source, usually HDMI ARC, TV, or TV Audio.
- Turn the TV and soundbar off, unplug them for 60 seconds, then reconnect power.
Verify the TV audio output setting
The TV must be told to send audio through HDMI ARC instead of internal speakers or optical output.
The exact menu names vary by brand, but the setting is usually found under Sound, Audio Output, or Speakers.
Look for options such as:
- Audio System
- External Speakers
- HDMI ARC
- eARC: Auto or On
If the TV is still set to internal speakers, the soundbar may stay silent even though the HDMI cable is connected correctly.
After changing the output, test with live TV, a streaming app, and the TV menu sounds if available.
Enable HDMI-CEC and Sony Bravia Sync
HDMI ARC typically relies on HDMI-CEC, the control feature that allows devices to communicate over HDMI.
On Sony soundbars and Sony TVs, this control layer is often labeled Bravia Sync, while other brands may call it Simplink, Anynet+, VIERA Link, or HDMI Control.
To troubleshoot properly, make sure HDMI-CEC is enabled on both devices.
If CEC is off, the TV may not recognize the soundbar as an audio device, which can prevent ARC from initializing.
- On the TV, enable HDMI-CEC or Bravia Sync.
- On the soundbar, enable Control for HDMI if that option exists.
- Restart both devices after making the change.
Cycle the ARC handshake
HDMI ARC can fail because the devices did not complete a clean handshake during startup.
This is common after a power outage, firmware update, or cable swap.
To reset the connection, follow this sequence:
- Turn off the TV and soundbar.
- Unplug both devices from power.
- Disconnect the HDMI cable from both ends.
- Wait at least one minute.
- Reconnect the HDMI cable to the ARC or eARC ports.
- Plug the devices back in and power on the TV first, then the soundbar.
This process forces the devices to renegotiate the ARC link and often restores sound immediately.
Confirm the HDMI cable is not the problem
Although ARC uses standard HDMI wiring, damaged or low-quality cables can interrupt the return-audio path.
A cable may still pass video while failing on ARC, which makes troubleshooting confusing.
If you suspect the cable, test with another HDMI cable that is known to work.
Keep the run as short as practical and avoid adapters, switch boxes, or wall plates until the system is working normally.
For Sony setups using eARC, cable quality matters even more because eARC relies on tighter signal integrity and broader bandwidth.
A cable that works for regular ARC may not be stable for eARC audio formats.
Check Sony soundbar firmware and TV software
Firmware bugs can break compatibility between a Sony soundbar and a TV, especially after major software updates on either device.
Updating both devices is one of the most effective fixes when the hardware appears correct but ARC still fails.
On a Sony soundbar, check the Sony Support app, the system menu, or the official support page for your model.
On a Sony TV, go to Settings and search for system software update or check for updates over the network.
- Install the latest soundbar firmware.
- Update the TV operating system.
- Restart both devices after updates complete.
Switch between ARC and eARC settings
Some TVs default to eARC, but not every soundbar or connected device handles it perfectly.
If audio is missing or unstable, try toggling eARC off and testing standard ARC.
Useful combinations include:
- eARC: Auto or On when both devices support it.
- eARC: Off when compatibility problems persist.
- Digital audio output: Auto, Pass Through, or Bitstream depending on the TV.
If your Sony soundbar supports only ARC, forcing eARC on the TV can sometimes cause dropouts or no sound at all.
Matching the TV setting to the soundbar’s capabilities often resolves the issue faster than replacing hardware.
Check the TV audio format settings
Incorrect audio format output can make a Sony soundbar appear broken even when ARC is active.
Some TVs default to a format the soundbar or source app does not handle well, especially with Dolby, DTS, or PCM settings.
Test the following options one at a time:
- Auto
- Bitstream
- PCM
- Dolby Digital
If the soundbar works in PCM but not in Auto, the issue may be a codec compatibility problem.
If one streaming app works and another does not, the problem may be with the content format rather than the HDMI ARC connection itself.
Test with another HDMI ARC source
If possible, connect the soundbar to a different TV with ARC or eARC support, or test a different soundbar on the same TV.
Cross-testing helps you identify whether the fault is in the TV, the cable, or the Sony soundbar.
Use this simple rule:
- If the Sony soundbar works on another TV, the original TV settings are likely the issue.
- If another soundbar works on your TV, the Sony soundbar may need a reset or service.
- If neither setup works, the cable, port, or audio settings are the most likely cause.
Reset the Sony soundbar if nothing else works
A factory reset can clear corrupted settings that block ARC communication.
Reset instructions vary by model, so check the user manual for your Sony soundbar before proceeding.
Typical reset steps include holding specific buttons on the unit or remote until the display confirms the reset.
Afterward, you will need to pair the soundbar again, re-enable HDMI control, and reselect the correct input source.
Only use a factory reset after trying the simpler steps above, because it removes saved preferences and custom sound modes.
When to contact Sony support or the TV manufacturer
If the soundbar still has no audio after trying different cables, verifying ARC and CEC settings, updating firmware, and resetting the system, the problem may be a hardware fault in the HDMI port or main board.
At that point, official support is the best next step.
Have these details ready when you contact support:
- TV brand and model
- Sony soundbar model
- HDMI cable type
- Which ARC or eARC settings you already tested
- Whether the issue happens on all apps and inputs
That information helps support agents narrow the cause quickly and determine whether you need a repair, replacement part, or a model-specific settings fix.