Help Library: Help Library: [LG TV] Excessive Noise From TV: How to Perform Sound Test

[LG TV] Excessive Noise From TV: How to Perform Sound Test

Troubleshooting LIFESTYLE SCREENS, TVs 18/08/2025

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<p class="info-subject">Is your TV making unusual or excessive noise?</p>

<h2 class="tit">Let's find out more.</h2>
<p>Noise may be caused by the broadcast signal or a problem with your TV. Use the Sound Test feature to check for issues.</p>

<h3 class="sub-tit">Are you hearing noise while watching a channel?</h3>
<p class="info-desc idt">➔ Check for TV sound issues using the Sound Test in the Settings menu.</p>

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<strong class="tip-tit">How to Perform the Sound Test</strong>
<p><strong>[2020] WebOS 5.0</strong></p>

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Press the <img style="vertical-align: bottom;" alt="Settings button image" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=YKAyBcgjXhV4n3o7219g&amp;portalId=P1"/> button on your remote → [All Settings] → [Support] → [Additional Settings] → [Sound Test]<br/>
Turn on the TV and press the Settings button on your remote.<br/>
Select [All Settings] from the Settings menu.
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① Select [Support].
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② Select [Additional Settings].
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③ Select [Sound Test] from the Additional Settings menu.
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④ Check your TV sound.
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<p><strong>[Before 2019] WebOS 4.5</strong></p>

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Press the <img style="vertical-align: bottom;" alt="Settings button image" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=YKAyBcgjXhV4n3o7219g&amp;portalId=P1"/> button on your remote → [All Settings] → [Sound] → [Sound Test]<br/>
Turn on the TV and press the Settings button on your remote.<br/>
Select [All Settings] from the Settings menu.
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① Select [Sound]
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② Select [Sound Test].
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③ Check your TV sound.
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<p><strong>[Before 2013] Netcast</strong></p>

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[Smart] or [Settings Menu] → [Settings] → [Support] → [Sound Test]
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<p><strong>General TVs</strong></p>

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[Settings Menu] → [Support] (Press the red button at the bottom of the remote) → [Sound Test]
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If the sound plays correctly during the test, the issue is likely with your broadcast signal, not the TV.<br/>
Contact your set-top box provider (cable, satellite, IPTV, etc.).<br/>
If the sound does not play correctly during the test, contact LG customer support for assistance.
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<p class="help-txt">This guide was created for all models, so the images or content may be different from your product.</p>  </div>

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[LG TV] Excessive Noise From TV: How to Perform Sound Test

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