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How to Sync the Picture and Sound on Your LG TV — LG Help Guide

If the TV audio is out of sync, first, check if the issue occurs on only one specific channel. If the audio is out of sync on all channels, go to [Match Screen and Sound] and turn on [Bypass]. If the issue continues, turn off [Bypass] and adjust the speaker delay setting.

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TroubleshootingTVs

What to Check First

  1. If the issue occurs on only one channel.
  2. If the issue occurs on all channels.
  3. 2021 and later TVs (webOS 6.0 and later): Press Settings on your remote control, select All Settings, Sound, Advanced Settings, Match Screen and Sound, and turn on Bypass.
  4. 2020 and earlier TVs (webOS 5.0 and earlier): Press Settings on your remote control, select All Settings, Sound, Additional Settings, AV Sync Adjustment, and turn on Bypass.
  5. If the picture and sound are still out of sync, turn off Bypass.
  6. Select TV Speaker Delay and adjust the value until the sound matches the lip movements on the screen.
  7. If the TV audio is out of sync, first, check if the issue occurs on only one specific channel. If the audio is out of sync on all channels, go to [Match Screen and Sound] and turn on [Bypass]. If the issue continues, turn off [Bypass] and adjust the speaker delay setting.
  8. On your TV remote, press the [Settings] (gear icon) or [Mute] button three times in a row.
  9. If the issue persists after following the steps above, you can get further support through LG Chatbot on our website or by requesting a technician visit.
  10. This guide is based on standard models. The settings menu may vary by model.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for How to Sync the Picture and Sound on Your LG TV?

If the issue occurs on only one channel.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

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Read the Official LG Guide