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这款 42 英寸等离子电视配有 2 个扬声器(输出功率 200 瓦),支持 SRS Trusurround XT 音效。它拥有 100 个节目或频道,具备画中画 (PIP)(单调谐器)、自动关机、自动音量平衡和屏幕菜单 (OSD) 等功能。其动态对比度为 10000:1,亮度为 1500 cd/m²。屏幕分辨率为 852 x 480 像素。该设备配有 2 个复合视频输入、1 个 S-Video 输入、2 个分量视频输入、PC 输入和 2 个 HDMI 输入。

Why does the sound go off after some minutes of powering it?

why does the sound of the TV go off after some minutes of powering it

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@kelvinchinda there are a couple of things that can cause this. My first suspect is always the audio IC since those are not of great quality. Anyhow, you did not tell us what exact model your TV is. You've selected the LG Plasma TV 42PC7RV-TA as your device. For sound issues with that, you do want to go ahead and perform the troubleshooting according to the LG flowchart

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It talks about no sound but it also applies to cases that lose the sound. Essentially it is the same check.

Now, if you get stuck on that, remove the back cover from your TV and take some really good pictures of your boards. That way we can look at those and verify (as well as mark) any issues we discover.

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