中文
含义
LED指示灯闪烁10次，表示电源板温度过高。该代码表示电源板（PSU）上的温度传感器检测到异常高温，通常是内部功率元件散热不良或负载过大导致。电源过热会缩短电源板寿命，并可能触发热保护关机。
常见原因
- 电源板散热片表面积灰过多，阻碍热量的有效散发
- 电源板主开关管长时间工作在大电流状态，超出散热设计
- 电视周围环境温度过高或通风不畅
- 电源板温度检测电路（热敏电阻）老化导致误报
- 电源板高压侧整流桥或PFC电感效率下降，发热量增大
自助排查
- 关闭电视并等待30分钟冷却后重新开机，观察是否恢复正常
- 清理电源板及散热片上的积尘，确保通风顺畅
- 检查电视安装环境：避免阳光直射、远离热源、确保四周通风空间
- 如频繁复现且环境正常，需更换电源板或检查负载电路有无异常
English
Meaning
The LED indicator blinks ten times, indicating the power supply unit is overheating. This code indicates that the temperature sensor on the PSU has detected abnormally high temperatures, typically caused by poor heat dissipation or excessive load on internal power components. PSU overheating reduces lifespan and may trigger thermal protection shutdown.
Common Causes
- Excessive dust accumulation on PSU heatsinks, impeding effective heat dissipation
- Main switching MOSFETs operating under high current for extended periods, exceeding thermal design
- Ambient temperature around the TV too high or poor ventilation
- Temperature detection circuit (thermistor) aged, causing false positive readings
- Reduced efficiency of the PFC inductor or rectifier bridge on the high-voltage side, increasing heat output
Self-Check Steps
- Turn off the TV and allow 30 minutes of cooling before powering on again to see if normal operation resumes
- Clean dust from the PSU components and heatsinks, ensuring unobstructed airflow
- Check the installation environment — avoid direct sunlight, keep away from heat sources, ensure adequate ventilation clearance
- If the issue recurs frequently under normal conditions, replace the PSU or check the load circuit for anomalies