Audio Return Channel (ARC) is a feature for HDMI-equipped TVs that allows the TV to send audio data “upstream” to your A/V receiver via the HDMI cable, eliminating the need for a separate audio cable. This feature allows you to enjoy the Dolby Digital/DTS surround sound from your ARC-enabled TV through a compatible sound bar or home theater system.
If you’re having trouble with your Samsung TV’s HDMI ARC not working, there are a few things you can try to fix the problem.
First, make sure that all external devices (like STBs, OTT devices, etc.) are disconnected from the TV. Then try again to play.
Next, ensure that your TV and audio devices are compatible with ARC. Many TVs released after 2012 should have ARC capabilities, but it’s always good to check your TV’s manual or product specs just to be sure. If you’re using an A/V receiver, it also needs to be HDMI-ARC compatible in order to work with your TV.
If your devices are compatible but you’re still not getting any sound, check to see if the HDMI output on your TV is set to “receiver.” To do this, go to Settings > Sound > Sound Output on your TV and choose Receiver (HDMI) from the list.
If you’re still having trouble, try running an HDMI diagnosis test on your TV. This can usually be found in the Settings menu, but again, consult your TV’s manual for specific instructions.
Finally, make sure you’re using the correct audio format. If you’ve changed the audio format on your TV, it may no longer be compatible with your sound bar or home theater system. To fix this, go to Settings > Sound > Expert Settings on your TV and change the audio format to one that is supported by your device.
You also reset your Samsung TV to factory settings to fix the problem.
With these troubleshooting tips, you should be able to get your ARC-enabled TV up and running in no time!
If you’ve tried all of the above and you’re still having problems, there may be a hardware issue with your TV. In this case, it’s best to contact Samsung customer support for further assistance.
How to Use the HDMI-ARC port on a Samsung TV?
Audio Return Channel (ARC) is a feature of the HDMI specification (HDMI version 1.4 and later) that allows audio to be returned from a television to an audio/video receiver or sound bar, without the need for a separate audio cable.
The HDMI-ARC port is typically labelled ‘ARC’ on the back of the TV or One Connect Box. In order to take advantage of this feature, the HDMI-CEC protocols need to be enabled.

The name of the protocol is HDMI-CEC Anynet+ Follow these steps to make sure your Samsung TV is set up right for HDMI-ARC:
- Press the Home button on your TV remote, then go to Settings.
- Tap Menu > External Device Manager on the Settings screen.
- After choosing External Device Manager > Anynet+ (HDMI-CEC).
- To turn on or off Anynet+, you can highlight it and press Enter on your remote. With HDMI-ARC, you can use PCM (2 channels), Dolby Digital (up to 5.1 channels), or DTS Digital Surround to play audio (up to 5.1 channel).
- When ARC is turned on, you can get high-quality sound from your TV without needing a separate audio cable.
How to reset your Samsung TV to factory settings
If your Samsung TV is acting up, you might want to try resetting it to factory settings. This will clear all of your personal data from the TV, as well as any custom settings you’ve made.
To reset your TV, open the Settings menu and select General. Then, select Reset and enter your PIN (0000 is the default). Finally, select OK to confirm the reset. Your TV will restart automatically.
After the reset, your TV will be like new, so you’ll need to set it up again just like you did when you first got it. But if you were having problems with your TV, reset should fix them.

Samsung TV factory reset without remote
If your Samsung TV has turned off and you don’t have a remote for it, don’t worry! There is a way to reset the TV without a remote. First, turn the TV off at the power point. Then, hold start button on the back of the TV or under the front panel for 15 seconds. Lastly, turn TV on at the power point. By following these steps, you should be able to reset your Samsung TV without a remote.
How to run a self diagnosis test on your Samsung TV
If you’re having issues with your Samsung TV, it’s often helpful to run a self-diagnosis test to see if there’s a problem with the hardware or software.
To do this, navigate to Settings and select Support. Then, select Device Care and choose Self Diagnosis. On some models, you may need to open Settings and select Support, and then select Self Diagnosis directly.
Finally, select Start Sound Test to run the test. This will help you determine if there’s a problem with your TV so that you can get it fixed.