Try playing a different video source to determine if the issue occurs with other connected devices.Make sure all cables are securely connected to the TV and the source device (set-top box, DVD player, BD player, home theater system, or game console).Note: If the issue occurs on one channel only, contact the broadcast network provider. If watching a TV program, try changing the channel to see if the problem occurs on other channels if it only occurs on one channel, then the issue is with the broadcast.Note: For how to update the TV, refer to the article How to perform a software update. Make sure that the TV has the latest system software (firmware) installed.Common troubleshootingīecause each of the steps below represents a possible solution to this issue, check if the issue is resolved after completing each step. Note: If there is an input lag issue when using a game console with a Google TV or Android TV, refer to the article How to reduce input lag when using the Game setting. In such cases, there are no issues with the TV speakers.
If the TV is connected to a soundbar or home theater system (with an HDMI cable or optical cable), the sound may be delayed due to audio processing delays in the soundbar or home theater system.There may even be a setting on the TV itself causing this issue.
When connected to a home theater system with a digital optical cable, then there may be an audio delay that requires a manual adjustment on the home theater system.If a DVD or Blu-ray Disc® player is connected, a poor connection or the disc itself could be the cause.
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