Fix LG TV Turns On But No Sound or Picture/Black Screen

A smart TV is part of every home. There are different TV brands. One of the best smart TV is LG. It is stylish and durable. However, it may develop some picture and sound issues. Because electronic devices are always vulnerable to technical errors or software issues.
When you turn your LG TV on, it gives no picture and no sound. You may face different situations. For example, the power light is on but the screen is black and no sound comes.

Another case is that you switch on the TV but it does not turn on. We will provide you the solution to all such problems. Surely, by the end of this article, you will fix your LG TV with no sound or picture.

Table of Contents

1. A Faulty Power Outlet

First of all, you need to check the power indicator on your LG TV. If it is not glowing then your wall power outlet has got some fault. Sometimes, the TV turns on at one moment and turns off at the next. This also happens due to a faulty power outlet.

The power supply or voltage is lower than your LG TV’s requirement. So, connect your LG TV to another power supply. Now, check if the power light turns on and the TV gives sound and picture. If this does not help, move on to the next solution.

LG TV Turns On But No Sound or Picture

2. Damaged Cables

Another reason for no sound and black screen on your LG TV is faulty cables. Either the power cable or the HDMI cable is damaged. A damaged HDMI cannot deliver sound and video signals. So, you need to check both.

Disconnect all the cables from your LG TV. Insert them again after a few minutes. Maybe you have connected the HDMI cable into the wrong port or it is loosely connected.

So, plug all the connection cables properly. If it does not work then you should replace the HDMI cable. Try another cable and check your LG TV’s performance.

3. Issues in the Input Source

A non-responsive input source may also be the reason behind the black TV screen and no sound. You may have connected your LG TV with a cable box, set-top box, Fire Stick, or any other streaming device.

First of all, check your input source is turned on. Next, confirm that it is sending signals efficiently. The signal issue can cause a black TV screen. Make sure you have plugged in the input source in the relevant port. Troubleshoot or reset your input device. Check sound and picture settings on the input device.

4. Problems in the Settings

Settings also affect the normal functioning of your TV. For example, the Energy Save Mode is on. It causes the TV screen to turn black with no sound. You can turn on the normal mode by pressing the button on the remote.

Also, check the mute button to release the sound. Fault in other settings such as picture mode and brightness can also cause a black TV screen. Change these settings in your LG TV’s menu by the following method;

Open the menu on your LG TV screen.
Next, open the ‘Picture’ settings and select picture mode.
Turn on the ‘Standard’ picture mode.
Now, go to backlight settings and set it from 10 to 30.
Reduce the brightness to 50.

After making these changes in settings, restart your LG TV. This solution can solve the issue of no picture and no sound.

5. Power Cycle Your LG TV

Power cycling is another helpful trick to solve the issue of the black screen and no sound. You can do it by the following methods;

First, unplug your LG TV from the power source.
Wait for 10 to 15 minutes.
Plugin the power cord again.
Force reset your LG TV by holding the power button for 10 to 20 seconds.

6. Reset Factory Settings on Your LG TV

If your LG TV is not giving pictures and sound, restore factory settings. It is the best working solution. Restoring to factory settings deletes all the data. The software bugs and malware are removed. It restores your TV to default settings.

So, your LG TV reboots. Be sure to unplug all the devices before resetting your LG TV. Follow the instructions given below to restore factory settings on your LG TV;

Press the menu button on the remote or LG TV.
Open the Settings and go to ‘All Settings’.
Navigate to the ‘Reset to initial settings’.
Finally, confirm the restore by clicking the ‘OK button.
Turn your LG TV on again. Now, check the picture and sound.

7. Install Pending Updates

The reason for the black TV screen may be an outdated version or pending updates. It interferes with the normal functioning of your LG TV. Therefore, your TV gives no sound and no picture but turns on. So, you should install all the pending software updates.

You can update the software by following the instructions given below;

Go to ‘General Settings’ on your LG TV’s menu.
Navigate to the “About this TV”.
If software updates are available, they will be visible in this section.
Finally, update the software by downloading the latest software version.

8. Contact LG

We have suggested all of the solutions. Most of the time, these solutions work, and no sound no picture issue is resolved. But, if these tricks do not help you, there is a hardware issue in your LG TV. You should contact LG Company to seek technical support. The company helps if your TV is under warranty.

However, you can consult a local technician if your TV has exceeded the warranty period. The circuit or power board or any other internal hardware damage causes a black TV screen with no sound. Mostly, the older TV faces these hardware issues. A professional mechanic can find the real fault.

Final Words

We come with the best solutions to resolve your problems. These solutions are tried and tested. So, one of them must solve the issue of the black LG TV screen with no picture and no sound. Keep giving us your feedback. We are open to any recommendations and queries.