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Why is there no sound on LG TV?

2025-12-03 05:02:28 science and technology

Why is there no sound on LG TV?

Recently, many users have reported that LG TVs suddenly have no sound problem, triggering widespread discussion. This article will combine hot topics and user feedback from the entire network in the past 10 days, analyze possible causes and solutions, and provide structured data for reference.

1. Analysis of common causes

RankingCause of failurefrequency of occurrence
1Wrong volume setting35%
2HDMI/audio cable is loose25%
3System software failure20%
4Damaged speaker hardware12%
5External device compatibility issues8%

2. Summary of solutions

According to LG’s official technical support forum and actual user feedback, the following solutions are more effective:

stepsOperation contentsuccess rate
1Check mute status and volume settings89%
2Restart the TV (unplug the power cord for 1 minute)76%
3Update system software68%
4Factory reset52%
5Contact official after-sales service100% (hardware problem)

3. Recent user hotspot feedback

By analyzing social media data, we found the following high-frequency discussion points:

platformfocus of discussionNumber of related posts
WeiboSuddenly no sound after system update1,200+
RedditARC/eARC function abnormality800+
ZhihuRepair disputes during the warranty period500+

4. Professional maintenance suggestions

1.Basic troubleshooting:It is recommended to try connecting a Bluetooth headset to test it first to confirm whether it is a problem with the TV speakers or signal output.

2.Software maintenance:The 05.30.35 firmware released by LG in the third quarter of 2023 is known to have audio bugs. It is recommended to upgrade to 05.30.40 or higher.

3.Hardware detection:If the TV indicator light flashes normally but is silent, the audio decoding chip (model ALC1220) may be faulty and requires professional testing.

5. Preventive measures

measuresEffectDifficulty of implementation
Clean system cache regularlyReduce software conflicts★☆☆☆☆
Use surge-proof outletsProtect audio module★★☆☆☆
Turn off automatic updatesAvoid BUG firmware★★★☆☆

Summary:LG TV silent problems are mostly soft faults, which can mostly be solved through system reset, firmware update and other operations. If the problem persists, it is recommended to obtain customized solutions through the online diagnostic tool on LG's official website (serial number required). For recent concentrated complaints, please submit reports on the website of the Defective Product Management Center of the General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China.

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