Tcl tv sound cuts out

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Q. I bought my 10-year-old son a Roku TCL TV for his birthday and we really like the picture. But yesterday the sound suddenly went off but the picture is still on. Any ideas on how to fix this? — Carrie, Tulsa.

Carrie, congratulations on your purchase. TCL/Roku TV sales are rising rapidlyin the United States thanks in part to the model’s comparably low prices. For example, you can buy a 50-inch TCL Roku set for less than $300 while a 40-inch model goes for under $200.

(Above is an Amazon link. The TV Answer Man receives a small portion of sales related to Amazon links found on this page.)

There may be several reasons why the sound on your TV isn’t working, but let’s start with the most obvious one.

The Mute button.

TCL and Roku have decided to place the Mute button on the side of the TV’s remote. It’s quite easy to hit the Mute button without even realizing it. So, just to be sure, make sure the Mute button isn’t set to On. If Mute isn’t set to On, also check the Volume levels, which are located slightly above the Mute button. Make sure the Volume isn’t set to 0 or another low number that would make it difficult to hear.

If Mute and Volume isn’t the problem, try the Volume on a different channel or show. It’s possible that the problem is with the program, not the set.

If the show or channel isn’t the issue, check your cable connections. A slightly loose HDMI connection could interfere with either the audio or video. Since the Roku/TCL doesn’t require a separate cable, check any cables connected to a different device such as a Blu-ray player. That could still interrupt the audio and video on your Roku program.

If the cable connection isn’t the problem, go to the TV’s Settings and set the Audio Settings to Auto. That will ensure the TV will deliver the best audio format for whatever you’re watching. It’s possible that you have the TV set to Stereo and the show you are trying to watch isn’t available in Stereo. (You never know.)

Finally, after trying all those little things, re-set the TV by unplugging it from the wall. (Also unplug and disconnect any other devices connected to the TV.) After 20 seconds or so, plug everything back in. You would be amazed at how often this simple step resolves what seems to be the most perplexing TV issue.

However, if it didn’t fix it, there’s really nothing else you can do but return it if it’s still under warranty.

Carrie, hope that helps. Happy viewing, and stay safe!

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Have a question about new TV technologies? Send it to The TV Answer Man at [email protected] Please include your first name and hometown in your message.

— Phillip Swann


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The picture of your TCL TV is certainly the most important aspect of its functionality. Just as important though, is the sound accompanying that picture. What do you do if the sound on your TCL TV is not working?

If your TCL TV sound is not working, not syncing, won’t turn, or stays up and down check to see that your remote is working, turn the ‘Volume Mode’ off, confirm the audio settings, disable the speaker sound and install a soundbar, or control the sound through the Roku app on your smart device.

Remote pointed at TV

When the picture of your TCL TV is working in perfect order, you may be thinking you could want nothing more. That is until the sound is no longer functioning properly, which can be just as big of an issue as the picture malfunctioning when it comes down to it. IF you are having problems with your TCL TV sound not working, not syncing, not turning, or staying up or down, continue reading to find your problem with a solution attached to it.

TCL Sound Not Working/Stopped Working

Man watching TV on sofa

If you have a general problem of your TCL sound not working or it simply stopped working out of nowhere, it may feel like one of those issues that is going to cost some serious time and money. Before you bring in the experts though, try a few different troubleshooting methods to see if you can resolve the issue on its own. For many owners, the problem is typically rather obvious and simplistic, it just takes a bit of digging to discover.

If your TCL Sound is not working or has randomly stopped working, you want to first check your remote. For those TVs that have a Roku remote controller, there is a mute button which is located on the side, but it is rather small. Even with its small size, it is very easy to push and this is sometimes one of the biggest reasons that owners are experiencing problems with their sound not working.

If the mute button is not your problem, check to see if the channel you are on is causing the problem by switching to a different station of application. If this is not the issue, be sure that the HDMI connection on the back of your TV is very secure and that any other device connected to your TV is secure as well. Any loose cords can easily interrupt the audio of your TCL TV.

TCL TV Sound Doesn’t Match Picture

Couple sitting on sofa with man holding TV remote

Not having sound on your TCL TV is a huge inconvenience, but when it comes to frustrating situations that nearly make you want to crawl out of your skin, there are few things worse than the sound not matching properly with the picture. For most TCL TV owners, when the sound does not match, it is usually lagged behind the picture, causing the mouths and scenes to move faster than the audio output.

If your TCL TV Sound doesn’t match the picture, the problem may exist due to the ‘Volume Mode’ on your TV being turned on. To turn the “Volume Mode’ off, simply press the ‘*’ symbol on your remote control and go directly to the ‘Volume Mode’ setting. Once you are there and you notice that this setting is turned on, simply select the option to turn it off and your audio sync problem should be fixed.

If the volume mode on your TV is already turned off, then you know this is not the problem. If you are using a soundbar, turn off the soundbar and allow it at least 60 seconds to be off before turning it back on. If you are not using a soundbar, try completing a power cycle by unplugging your TV directly from the power source, allowing it to sit unplugged for 60 seconds, then plugging it back in.

TCL TV Doesn’t Have Sound/Keeps Losing Sound/Sound Not Working

TV remote changing channels

When you turn on your TCL TV and there is no sound, or it keeps losing sound, or the sound simply is not working, there are a few different solutions you can troubleshoot with to get the sound back in working order. Be sure to first make sure that the volume level is not set to (0) or that the TV is muted. To check this, you can either press the mute button on your remote or simply increase the volume level on the right side of the remote.

If your TCL TV doesn’t have sound, keeps losing sound, or the sound is not working and the volume is not the issue, confirm your TV’s audio settings. To do this, press ‘Home’ on your remote control > select ‘Settings’ > select ‘Audio’ > scroll and select ‘Audio Mode’ > scroll and highlight ‘Audio (Stereo)’ > then press ok to confirm your settings.

TCL TV Sound Won’t Turn Down/Up

Man sitting on white sofa and watching TV

When you are in the middle of an action-packed movie, there is nothing better than getting a total theatre effect by increasing the volume to a point that you can nearly feel it in your bones. Just the same, on a lazy Saturday afternoon, there is no need for the relaxing music you are playing to be set at 80, as a lower volume is more appropriate. What do you do then if your TCL TV sound refuses to turn up or down?

If your TCL TV sound won’t turn up or down, check to see if it is an issue with your remote or your control board. To do this, turn your TV off, and then, on the TV press the volume (-) button down as you turn the TV on. When the TV is turned on, if you don’t notice an automatic increase in the volume, then your remote button is stuck. If you do notice an automatic increase, then an issue within your control panel exists.

TCL TV Volume Keeps Going Up/Down

Bored man sitting on sofa scrolling through the TV channels

Perhaps even worse than the volume of your TV being stuck either too loud or too quiet is the problem of the volume randomly going up or down on its own. If you are sitting on the couch without even touching the remote and the volume randomly begins to increase, this can not only cause a quick scare, but it can also reach levels so high that you are unable to even be in the same room. What do you do if this problem persists for your TCL TV?

If your TCL TV Volume keeps going up and down, be sure that your remote is not the culprit by replacing the batteries to see if this stops the increase or decrease. If this is still happening, check to make sure that the Roku phone application is not being hit as you watch TV as volume can be controlled from here. You can also install a soundbar and disable the sound in your TV speakers to isolate the issue.

TCL TV Audio Keeps Cutting Out

Couple watching TV in the living room

If the volume on your TV is working, but all of the sudden it begins to cut out, this can leave you missing out on important scenes, beautiful melodies, and even more, leaves you wondering what exactly is causing such a sporadic issue. If your TCL TV audio keeps cutting out, read below to find a few solutions to such a problem.

If your TCL TV audio keeps cutting out, one of the most common problems is a loose cord on the back of your TV. Be sure that every cord is securely inserted into the TV so that your audio doesn’t experience interference. If this is not the problem, a reset of your Roku may be needed. To do this press the ‘Home’ button on your remote > ‘System’ > ‘Power’ > ‘System Restart’ > ‘Restart’ > ‘OK.’

TCL TV Sound Not Working in Apps

Smart TV apps

The beauty of a TCL TV is that you can just as easily watch cable or satellite TV while having the same quick accessibility to a multitude of different apps. If you are watching TV by either cable or satellite and have no trouble with volume, but once you switch to an app you find that the sound is no longer working, you’re left wondering what on earth could cause such an isolated problem.

If your TCL TV sound is not working when you are in apps, this may not be a problem necessarily with the volume, but with the firmware on your TV. This means that your TV may be in need of a firmware update to help resolve any glitches that are causing widespread problems with your application. To complete a firmware update press ‘Home’ > ‘Settings’ > ‘System’ > ‘System Update’ > ‘Check Now’ > then update.

How to Turn Up the Volume on TCL TV Without a Remote

Watching TV with a cup of coffee on lap

There are so many times when owners find themselves searching profusely for the remote control to their TCL TV to no avail, no matter how persistent their efforts are. When this happens, they are in need of a solution to not only get the TV on and change the channel, but to control the volume. What do you do if you cannot find your remote (or your remote is not working) and you need to turn the volume up?

To turn the volume up on your TCL TV without a remote and there are buttons on the bottom or back of the TV, simply press the (+) button on the remote to turn the volume up. If there are no buttons on your TV, you can install the Roku app on your smartphone by which you will be able to control the volume of your TV from. If you do not have a smartphone, a new remote will need to be purchased to turn up the volume.

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If you own a TCL Roku TV, you may have come across a problem whereby you see a video from the player on the TV but cannot hear the associated sound.

Whenever you see a video, it means the TV is working well. But if your TCL Roku TV does not have sound, you need to figure out the cause and fix it to continue watching your content.

One way to get the sound back on your TV is to press the mute button on your remote. Even if you do not remember to have muted the device, someone else may have done it.

Also, press the volume up button and determine the TV’s current volume meter. This problem is different from the one where sound works but images don’t show.

If you can hear a sound as you increase the volume, then somebody had turned it low. But many more issues can cause the problem.

The following are some steps you can use to fix sound issues on your TCL Roku TV.

How to fix no sound on TCL Roku TV

Some methods of fixing the problem include:

1. Unplug the speakers hooked up to the TV

If the in-built speakers are not producing any sound, start by unplugging the speakers you have hooked up to the TV.

The step allows you to determine whether sound can play on the device itself instead of the auxiliary output speakers. That way, you will know whether the external devices are defective or the TV itself.

2. Change the channel

Try changing the channel to a different one to determine whether the loss of sound is on every channel or the current one you are watching.

If the other channel has sound, then the current one is experiencing some technical issues. That also means your TV is working well.

3. Check your cable connections

If you are using a composite cable, ensure you have attached the audio connectors snugly at both ends. A slightly loose HMDI connection can interfere with either sound or video.

Note that the TCL Roku device does not need a separate cable. Therefore, check all the wires connected to a different device like a Blu-ray player.

External devices can also interrupt the sound on your Roku.

4. Change the TV’s audio settings

If there is no audio on TCL Roku TV, try to change the audio settings. Here are the steps to follow:

  • Press the Home button on your Roku remote.
  • Scroll up or down and select Settings.
  • Select system, then Audio.
  • Select S/PDIF and ARC, and make a selection.

At this point, you will have two options for making a selection. These include Auto Detect and Auto Passthrough. Choose Auto Detect.

It is the default setting that allows your device to detect the capabilities of your surround sound system automatically. But your connection has to be on HDMI for this to work well.

5. Disconnect and reconnect all the cables

Disconnect and reconnect all cables to try and fix the sound on your TCL Roku TV. These include the power cable, HDMI, and more. Once done:

  • Press the Home button on your remote.
  • Scroll up or down and select Settings.
  • Select Audio.
  • Set Audio mode to Stereo.
  • Set HDMI to PCM-Stereo.

If your Roku player has an optical port, change the HDMI and S/PDIF options to PCM-Stereo.

6. Turn sound leveling off

You can turn TCL Roku TV volume leveling OFF using the steps below:

  • Press the Star button on your remote.
  • Under the Menu, scroll down to Volume Mode.
  • At the Volume Mode, turn the option OFF.

Once done, restart your TV and try again to see whether you have fixed the sound not working problem.

7. Change the optical cable

Changing the optical cable is necessary if the TCL Roku TV sound cuts out. The optical cable you are using may be defective. Consider buying a new one and try again –we recommend this cable from Syncwire.

You can also try to troubleshoot the problem using the following methods:

  • Press the Home button on your remote.
  • Scroll down to Settings.
  • Select Audio > HDMI or HDMI and S/PDIF if you are using the player with an optical connector.

At this point, you will see the option Auto Detect. But instead of choosing Auto Detect, select an option that matches the capabilities of your TV. That could be a soundbar or AVR.

Once you choose the right option, restart your device and check whether you have solved the sound distortion option.

8. Restart your TCL Roku TV

When you are watching a video and notice no sound on the apps, consider restarting your device. You can do it in different ways:

  • Unplug your TV from the power source.
  • Wait for at least 20 seconds.
  • Plug it back and try again.

Alternatively, you can go to System > Settings > System Restart > Restart.

Another option is to change Auto Detect to PCM – Stereo. Go to Settings > Audio > HDMI. At HDMI, set it to PCM – Stereo.

9. Change Audio Mode to Dolby Digital

If you have connected your Roku player to a soundbar or AVR using an optical cable, consider changing the audio mode to Dolby Digital.

  • Press the Home button on your remote.
  • Scroll up or down and select Settings.
  • Select Audio.

At this point, set HDMI and S/PDIF to Dolby D. The option should give you a solution to no sound when streaming.

10. Change the input on the soundbar AVR

You can also try to connect your Roku device to a different input on the soundbar or AVR to see whether it works for you. If it solves your issue, the previous input was not the correct one. While at it, try changing the cables one at a time.


When you are playing videos on your TCL Roku device and hear no sound, several things might have caused the problem. First, press the mute button and see if it works.

You can also adjust the volume up to try and solve the issue. Or, try to get the sound back on your TV by disconnecting and reconnecting all the cables.

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