中文
含义
LED指示灯闪烁4次，表示音频系统故障。该代码表示电视的音频处理芯片、功放（Amplifier）或扬声器输出电路出现异常，可能导致无声音、声音失真或噪音等问题。
常见原因
- 音频功放芯片（Audio Amplifier IC）过热或损坏，触发保护电路
- 扬声器音圈短路或阻抗异常导致功放过载
- 音频信号处理DSP芯片工作异常，I²S数据总线故障
- 主板至扬声器的连接线松动或接触不良
- 软件音量控制或音频模式设置严重异常
自助排查
- 检查设置菜单中音频输出是否为正确模式（电视扬声器 vs 外接音响）
- 使用耳机连接电视耳机接口（如有），判断是否主板音频输出正常
- 进入工程菜单查看音频功放保护状态是否被触发
- 如耳机有声而扬声器无声，检查扬声器连接线是否脱落
English
Meaning
The LED indicator blinks four times, indicating an audio system failure. This code indicates an abnormality in the TV’s audio processing chip, amplifier, or speaker output circuit, which may result in no sound, distorted audio, or noise.
Common Causes
- Audio amplifier IC overheating or damaged, triggering protection circuitry
- Speaker voice coil short-circuited or impedance abnormal, overloading the amplifier
- Audio DSP chip malfunction or I²S data bus failure
- Loose or poor contact in the wiring between main board and speakers
- Severely corrupted audio volume or audio mode settings in software
Self-Check Steps
- Check that the audio output mode in settings is set to TV speakers (not external system)
- Connect headphones to the TV headphone jack (if available) to test if main board audio output is functional
- Access the service menu to check if the audio amplifier protection flag has been triggered
- If headphone audio works but speakers do not, inspect the speaker connection wires for detachment