Television

Why Does My TV Have No Sound on One Channel

I recently discovered that a sound suddenly went out on my TV.

If you are also frustrated due to this audio issue, the TV screen works fine, but you cannot hear a single thing on a few or all local network channels.

Don’t panic; I have discussed all working methods to diagnose the problem when the TV emits no sound on one of few local channels.

Either you can try every single method to resolve the issue or find the root cause of why the TV isn’t playing any sound but showing pictures and then implementing the right solution.

Within minutes, you will recover audio on your TV without missing your favorite show on TV.

Let’s get started…

TV Have No Sound on One Channel? Quick-Fix

If your TV shows pictures but no sound for local channels, it may be muted, the volume may be low, SAP is turned on, or an external speaker or headphones is plugged in. The quickest troubleshooting option can be to change the channel or restart the Television. Additionally, you can try to check the TV’s firmware, speakers, cable connection, or input settings.

Why Does My TV Have No Sound on One Channel

This is a common issue that occurs with Samsung, Sony, LG, Vizio, Philips, Sharp, Panasonic, and other brands where sounds go off on one or multiple channels but pictures keep showing with no sound.

These methods will work fine regardless of the type of TV, like LCD, LED, OLED, Plasma, Smart TV, 8K, 4K, QLED, 32-inch to 110-inch TV. So, start reading and implementing these methods to figure out what’s causing the TV sound not to work correctly while the picture is showing and resolve it ASAP.

Before considering replacing the TV with sound but no picture, try to figure out what is causing the TV to produce no sound but only picture. Because, primarily, a simple troubleshooting method can bring back the thAudiot audio of the TV.

Potential Reasons for No Sound on TV

  • Secondary Audio Protocol is Turned on
  • Volume turned to Zero
  • Problem with sound settings
  • Improperly connected devices
  • Volume muted and forgot to unmute
  • A restart of the TV is pending
  • Signal source connector damage
  • External speakers or headphones are attached
  • Internal speakers are damaged and need replacement
  • Examine connection cables
  • TV Software needs to be updated

Fix TV Have No Sound on One Channel

#1: Customize Audio Settings

The first technique you should try when your TV gives silence on some or all local network channels is to customize the audio settings.

All you have to do is check the audio input settings.

Just to let you know, the audio input sends audio signals to the TV.

So, one of the reasons when TV gives no sound on some channels but pictures is when audio input settings are not set correctly.

You have to check if the SAP ( Secondary Audio Protocol ) isn’t enabled from the TV audio settings.

If SAP is enabled, that meaAudioe audio is routed towards the AUX or HDMI ports, and if they are connected with the TV, you wonAudiot audio from TV speakers.

So, from the TV’s on-screen menu, you need to check if the audio input goes to the internal speakers, not external speakers or any other input source.

You may have pressed it accidentally, but with compromised input settiAudiof audio, you won’t listen to a thing from the TV.

You can change the SAP to PAP ( Primary Audio Protocol ).

Depending on the TV brand, the process will slightly differ, but a significant part of this process is identical for all types of TV.

For TCL and Roku TV, try this method.

Remote > Home > Settings > Audio > Audio ( Stereo )

For Samsung TV

Support > Self Diagnosis > Start Sound Test

If there is an issue, reset the sound settings

Settings > Sound > Expert Settings > Reset Sound

#2: Unmute TV

What if you are the reason behind your TV giving you no sound on one or many channels but pictures?

Do you usually put the TV on Mute during commercial breaks? Because 1 out of 3 people do,

Did you put the TV on mute and forget to unmute it? So, double-check the mute status before getting panicked.

If TV is on Mute, grab the remote controller and press the “Mute” button to unmute the TV.

Or increase the volume up to disable the mute automatically, and you will start hearing sound from your TV channels with pictures.

#3: Check the TV Volume Level

A common reason TV shows pictures, but no sound on any network is when the TV volume is set to zero or low.

It’s an essential thing that can happen due to mistakes, and you can use the remote controller to check the sound level on the screen, and you will gAudioe the audio back.

But, if you increase the volume and the sound problem still occurs, try to find below what’s restricting the sound output from the TV, and you will find the reason for the absence of sound from the TV with the solution.

But mostly, the TV’s audio problem is sorted by simply increasing the TV volume or the cable box.

 

#4: Reboot TV

The next possible solution to fix the TV with the picture but no sound on one of the many channels is to reboot the TV and all the connected devices with the TV.

Restarting seems simple, but he wonders if it’s the underlying issue of no sound from the TV with the picture.

How to Reboot TV?

  • Step1: Disconnect the TV from the AC power
  • Step2: Unplug the TV from the wall
  • Step3: Press and hold the power button
  • Step4: Wait for at least 30 seconds
  • Step5: Plug it back and press the power
  • Step6: Connect the devices with the TV and turn them on as well

Once done, play anything on YouTube or Netflix and check if you hear the sound.

Rebooting the TV refreshes the settings, and all the glitches or issues get resolved during this process, and that’s why you will mostly restore the TV audio after this process.

 

#5: Examine Headphones Port

Another big reason for no sound on one channel is when something external ( Headphones or speakers ) is connected to the TV, and due to that TV won’t play audio in the internal speakers.

When wired or wireless headphones/speakers are connected with TAudioe, audio is routed to these connected devices or devices like Bluetoothaccessoriess or any other audio output devicAudion audio will be transmitted into these devices in the internal speakers.

If, due to back luck, you cannot hear sound in the headset or speaker plugged into the headphones jack, then make sure the connector is inserted correctly or clear the jack from any debris which can cause problems.

If the TV intercepts audio, check for any other wireless headphones in your home because they can override the audio preferences. So the sound of streaming media will be playing in any other headphones altogether.

Where do I find the headphones jack?

The headphone jack is mainly installed on the rear side of the TV for most brands and models, but for some, the location can be different, and you may have to find that yourself depending on the brand and model you have.

Another scenario can be when you are using your TV as a monitor for playing games where you have connected your gaming devices like your PC, console, PS4, or NVIDIA Shield,f you face probation audio; you can check whether the streaming devices are correctly connected.

 

#6: Examine Connection Cables

HDMI test for Samsung TV, make sure TV is on the HDMI settings

Settings > Support > Self Diagnosis > Signal Information > HDMI Cable Test > Start Test

damaged cables can be replaced; when the TV seems to produce no sound, check if cables are secured, not any cable is cut, removed, disconnected, or loose,

Double check the connection cables when TV is giving no sound but pictures because when the external media devices or hardware devices like gaming consoles, satellite receivers, Blu-Ray players, and cable TV boxes are not connected properly, the TV struggle with audio.

Similarly, when you connect different cables with the TV, like HDMI cables, SCART leads, Phono cables, Optical cables, Auxiliary cables, RCA connections, Coaxial Audio cables, or any specific cable or component that controls audio, you should check the physical connection.

If not, check that the wire isn’t disconnected, cut, damaged, or loose because these are the potential reasons why the TV doesn’t produce sound for all channels.

The simple option can be to unplug everything, plug them back, and reconnect firmly to avoid any more issues.

You can try the HDMI test for Samsung TVs by going into the HDMI settings.

  • Go to TV settings
  • Scroll to Support
  • Find Self Diagnosis
  • Find Signal Information
  • Click on HDMI Cable Test
  • Click on Start Test

By doing so, you will make sure that HDMI isn’t causing the audio problem with the TV. Any problem there is will be taken care of by the built-in TV program.

 

#7: Check Internal and External Speakers

Until now, if nothing has worked for you to fix the TV audio on channels, It could be possible that the internal speakers are damaged or there is some issue.

It could be a reason if you have been using the TV at total volume or using an amplifier that is more potent than speakers and can push the TV’s internal speakers to limits.

Similarly, due to any reason, the IC of the speaker could have been damaged.

By the way, IC drives the internal speaker and can heat up and fail. So, you may have to replace either the IC or the mainboard/motherboard of the TV, which is beyond an ordinary person’s skills. So, it’s better to get the help of a technician for that.

The motherboard part number is 1AA4B10N260A0, and the number of the IC is LV4906, in case you purchase them.

Now, if you have been using external speakers with your TV, you should also check if those speakers are working fine or not. Otherwise, you will keep saying that the TV has some issues, which is why the TV gives no sound but pictures.

For sony TV, you can follow the process below when using an external soundboard or A receiver audio system.

  • Set “Control for HDMI” for both audio systems to “On.”
  • Turn on Audio Return Channel on Soundbar
  • Set the audio output destination from the TV to “Audio System.”
  • Press Input or TV from remote
  • Turn on the TV, Turn on the Audio system
  • Set TV’s digital audio output setting to PCM

For LG TV

  • Go to the scenes on the TV
  • Find All settings
  • Locate to sound
  • Click on Sound Out
  • Choose HDMI ARC, Optical, or Bluetooth

For Samsung TV

Settings > Sound > Sound Out > Sound Expert > HDMI ARC, Optical, Bluetooth,

#8: Change Channel

The quickest fix for the TV volume can be changing the channel because sometimes, one channel is not working correctly, so changing the track solves the problem.

#9: Check for TV Software Updates

In some cases, update the TV software/firmware to fix the TV with no sound but a picture.

Updating the TV’s old or outdated OS/firmware from the previous version to the latest version can remove all the issues and glitches within the TV. Hopefully, the sound issue will also get resolved after this.

The firmware update procedure can be different for different TV manufacturers.

Either you can connect the TV to the internet to download the latest firmware version or install the software on your laptop/PC, copy it into the flash, and insert the moment into the TV’s USB port to install it.

After upgrading the TV software, the TV should play snow if that was why the TV was not producing sound.

#10: Perform an Analog Broadcast

Another quick fix for a TV is not giving sound but the picture to perform an analog broadcast.

When you use a TV with an analog broadcast, you will listen to the noise while turning, which means the TV is working fine. If no sound comes, that means the TV has an issue.

#11: Verify MTS settings for Television

You can verify MTS settings for Television when you play with the settings of the TV Stereo.

When you see that the TV is giving the lowest sound if only one speaker is working, that means TV is not set to stereo. And it’s not able to transmit signals from stereo settings.

You can replace or adjust the source device.

#12: Reset the TV settings

What worked for me was to reset the TV to its factory settings.

I must tell you that resetting the TV does remove all incompatibility issues, glitches, or faults in the TV.

But a factory reset will erase all the data, preferences, information, and configurations you had done previously.

After the reset, the TV will act like a brand-new device with new audio settings that will eliminate the audio loss issue.

When you reset the TV, it clears the short-term memory of the TV and resolves all other issues, which is why the sound is restored after this process.

You can follow the on-screen instructions to reset the TV for factory settings.

To factory reset, you can go to the

Settings of the TV > Click on Reset Factory Settings

Once done, check the sound; you will see the audio playing smoothly.

 

#13: Signal Source Damage

Another possible reason for a TV with no sound but pictures can be the damaged signal source.

The source of the TV signal should be more than 20dB.

Luckily, Samsung TV allows you to do that yourself by

Going into the settings > Support > Self-diagnosis > Signal information.

#14: Mainboard Elements Damage

The mainboard, also called the motherboard the rich, is the backbone or the spine of the TV set; if it turns into an error or problem, the TV will surely lose the ability to produce sound with a handful of other issues.

The bad news is that you cannot do anything here because playing with a TV’s technical parts is beyond a regular person’s skills unless you are a TV technician.

Recovering the mainboard can help you restore the sound of the TV.

 

#15: Check for hardware problems.

Finally, you can check for any hardware problems with the TV, like if the signal source is damaged, internal or external speakers are damaged, or the mainboard is damaged. In this case, all you can do is get help from a professional TV expert.

The best part is that we have discussed and ensured these methods are for all brands like Samsung, LG, Sony, Vizio, TCL, Element, Insignia, Sharp, Hisense, Philips, Loewe, Mitsubishi, Panasonic, Toshiba, RCA, Sanyo, Emerson, Olevia, Funai, Sceptre.

Conclusion

Hopefully, after implementing these techniques, you should get sound back on all the local network channels. If not, then try to contact the cable operator in your area to figure out the reason.

 

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About the author

Robert Smith

Robert Smith is a technology lover and loves to write about laptops, monitors, printers, tablets, Apple products and anything that's related to computers and games. He is passionate enough that he maintains this blog regarding tech updates on a daily basis.