June 18, 2024

Ever experienced the frustration of having sound but no picture on your LG, Samsung, or Roku TV? Let’s troubleshoot what might be causing this issue.

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Overview of Common Causes

One common cause of a TV having sound but no picture is a loose or faulty connection. Check all cables and connections to ensure they are secure and undamaged. If using HDMI, make sure the cable is plugged in properly and try using a different HDMI port on the TV.

Another possible cause could be a problem with the power supply. Check if the TV is receiving power by ensuring it is plugged in and the power outlet is working. Try unplugging the TV for a few minutes and then plugging it back in to see if that resolves the issue.

Issues with the backlight or image settings could also be to blame. Adjust the brightness and contrast settings on the TV to see if that restores the picture. If the backlight is faulty, it may need to be replaced by a professional.

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Software glitches can sometimes cause a TV to have sound but no picture. Try performing a factory reset on the TV to see if that resolves the issue. This will restore the TV to its original settings and may fix any software-related problems.

Quick Fixes to Try First

TV remote control

  • Check all connections
    • Make sure all cables are securely plugged in
    • Check for loose connections or damaged cables
  • Reset the TV
    • Unplug the TV from power for at least one minute
    • Plug the TV back in and turn it on
  • Adjust the picture settings
    • Access the picture settings menu on the TV
    • Adjust the brightness, contrast, and other settings as needed

Verifying Connections and Inputs

TV with sound but no picture

To verify connections and inputs when troubleshooting a TV that has sound but no picture on LG, Samsung, or Roku devices, the first step is to check all cables and connections. Make sure that the HDMI, AV, or other video cables are securely plugged in on both the TV and the device.

Next, inspect the power supply. Ensure that the TV is receiving power and that the outlet is functioning properly. Use a multimeter to check for any electrical issues that may be causing the problem.

If the connections and power supply are all in order, try a factory reset. This will reset the TV to its original settings and may resolve any software glitches that are causing the issue.

Additionally, check for any interruptions in the signal. Make sure that the input source (such as a cable box or streaming device) is working correctly and that there are no issues with the signal being received by the TV.

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Finally, if all else fails, contact the manufacturer for further assistance or consider seeking help from a professional technician. It’s important to address the problem promptly to ensure that you can continue enjoying your home cinema experience without any interruptions.

Troubleshooting Power Supply and Backlight Issues

If your TV has sound but no picture, the issue could be related to the power supply or backlight. To troubleshoot this problem on LG, Samsung, or Roku TVs, follow these steps:

Check the power supply: Make sure the TV is plugged in and the power outlet is working. Inspect the power cord for any damage or loose connections. Try plugging the TV into a different outlet to rule out any electrical issues.

Inspect the backlight: Shine a flashlight on the screen to see if there is a faint image. If you can see an image, the backlight may be the problem. In this case, the backlight may need to be replaced.

Check the connections: Make sure all cables are securely connected to the TV and any external devices. Inspect the HDMI, USB, and other ports for any damage or debris that may be causing a poor connection.

If these steps do not solve the issue, it may be necessary to contact a professional technician for further troubleshooting.


How do I reset my TV when the screen is black?

To reset your TV when the screen is black, try unplugging it from the electrical outlet for 60 seconds, then plug it back in and turn it on. This is known as a soft reset.

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How do I fix the black screen of death on my TV?

To fix the black screen of death on your TV, you can try power cycling it, checking cables for damage, disabling sleep timers and Power-Saving Mode, and trying different ports on your TV.

Why is my Samsung TV screen black but sound still works?

Your Samsung TV screen is black but the sound still works because there may be a connection issue or a software problem. You can try unplugging the TV, checking the HDMI cable, or performing a factory reset to troubleshoot the issue.

Why is my TV dark all of a sudden?

Your TV may be dark all of a sudden due to settings such as the picture mode, Energy Saver settings, or the AI Brightness function.

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