Fix: LG G1, C1, and Z1 Sound Not Working or Audio Cutting Out

TVs are getting smarter these days; with features like Dolby audio, Screen Mirroring, and many more, this entertainment box is your daily companion. One of the biggest electronics companies globally, LG is a leader in the Global TV market. Despite being the best brand, people do occasionally face several issues with the Audio output, or they don’t get any sound back from the TV. In this article, we will try to help you fix LG G1, C1, and Z1 sound not working or audio cutting out issues. This problem can be frustrating and can interfere with your viewing experience. If you are facing any sound issues, you can go through this article to fix them.

There is an audio feature in the LG TV, the HDMI ARC feature. This feature gives you an immersive sound experience with an external audio system. However, the internal speaker works fine for the TV most of the time, eliminating the need for any optical cable. The ARC system uses integrated applications in the TV to send the sound to the external sound system. Most of the users are facing the same issue, and there are some troubleshooting methods you can follow to fix it.

Fix LG G1, C1, and Z1 Sound Not Working or Audio Cutting Out

Fix LG G1,C1, and Z1 sound not working or Audio Cutting Out

LG TVs are some of the most popular and well-regarded televisions on the market today. With their sleek designs, stunning picture quality, and advanced features, LG TVs have become a mainstay in many households.

However, like any other electronic device, they can develop issues over time. One of the most common issues that LG TV owners face is a lack of sound or audio cutting out. If you are facing a similar issue, the methods below will help you.

Method 1: Reconfigure LG TV Sound settings

Configuring LG TV sound settings is the first step to fixing any sound-related issues. Most of the time, it is the settings that create problems like these. To make this right, you can follow the below steps:

  • Open the Settings menu on the TV by clicking on the settings menu by clicking on home>settings.
  • Click on the settings tab and tap on the smart sound mode.

  • Turn Off the smart sound mode.
  • Now go back & select the sound and select sound out.
  • Set Digital Sound to the PCM and turn off the LG sound sync.

  • Turn off AV sync.
  • Toggle the AV sync adjustment off.

Method 2: Power Cycle your TV

Power Cycling TV can fix certain issues and conflicts that are happening between the software and hardware. In this case, the Power cycle will fix the sound issues you are facing due to technical glitches.

  • Unplug your TV  from the power socket.
  • Wait for 60 seconds and press the power button on your TV for more than 15 seconds.
  • Plug in the TV again and power it on.
  • This will soft reset your TV.

Method 3: Turn On HDMI-CEC

If you are using the ARC system, you must also turn on the HDMI-CEC system. If you have turned on the HDMI-CEC, you can ignore this method.

HDMI control is known as the HDMI-CEC in LG, and Samsung calls it any net +. This function should be turned on to use the ARC.

  • Go to the sound settings of the LG TV.
  • Find the ARC system and turn it on.

Fix LG G1, C1, and Z1 Sound Not Working or Audio Cutting Out

  • If it is turned off, you can turn it on and turn it on again.

Method 4: Turn off DOLBY Atmos

Digital optical doesn’t support Dolby Atmos because it can not be used to transmit the Dolby audio codec, and sometimes it can create issues in the sound output. Due to this, many users face sound not working or audio cutting out issues on their LG G1, C1, and Z1 smart TV.

  • Go to the settings of the TV.
  • Go to sound, and select sound settings.
  • Toggle off the Dolby Atmos.

Method 5: Switch off sound out option

Fix LG G1, C1, and Z1 Sound Not Working or Audio Cutting Out

The LG TV G1, C1, and Z1 have various sound options, and they face this sound cut only when they turn on the Truer HD option. If you have an internal TV speaker that is having an issue with the sound output, you can turn it off and use the external speaker or audio devices.

Method 6: Change HDMI ports

These days, all the TV has multiple HDMI ports; sometimes, you can face issue with any single HDMI port, which can be the reason behind the sound issue you are facing. You can try changing the HDMI port to fix this. Just plug out the HDMI cable from your TV and plug in the HDMI cable again in a different port.

Method 7: Update TV Firmware

If the issue persists, it may be a problem with your LG TV’s software or firmware. You can try resetting your TV to its default settings or updating the firmware to see if this resolves the problem. You can usually do this through the settings menu on your TV or by downloading the latest firmware from the LG website.

Method 8: Contact LG Support

Another possible cause of sound issues on LG TVs is a faulty audio component. If none of the above steps work, you may need to have your TV serviced by a professional. They can diagnose the issue and replace any faulty components, such as speakers or audio processors.


This brings us to the end of this guide for fixing LG G1, C1, and Z1 sound not working or audio cutting out issues. You can try the methods above or visit a service center to fix your TV. You may call anyone from LG customer support, and they will fix your TV in the comfort of your home with a small servicing fee and enjoy your LG TV to its fullest potential.

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