中文
含义
扫地机器人激光雷达（LDS/LIDAR）异常。E8 表示机器人的激光测距传感器不旋转或数据异常。激光雷达是机器人导航和地图构建的核心传感器，其故障将导致机器人无法建图、定位和规划路径。
常见原因
- 激光雷达头被头发或灰尘缠绕，转动受阻。
- 激光雷达驱动电机碳刷磨损或电机损坏，雷达不转。
- 激光雷达供电电压异常，激光管无法正常工作。
- 激光雷达的霍尔（零位）传感器故障，无法确定旋转原点。
- 雷达接收透镜被灰尘遮挡，接收信号弱。
- 激光雷达与主板之间的排线松动或断裂。
自助排查
- 检查激光雷达（机器人顶部突出圆塔）是否能自由转动——用手轻轻拨动，应有顺畅的转动感。
- 用小毛刷清理雷达顶盖和透镜上的灰尘。
- 检查雷达周围的缝隙是否有头发缠绕——用镊子清理干净。
- 将机器人移动到光线不太强的地方测试——强阳光中的红外线可能干扰激光雷达。
- 重启机器人。若 E8 持续存在，说明激光雷达硬件损坏，联系 TCL 售后更换激光雷达组件。
English
Meaning
The laser distance sensor (LDS/LIDAR) is abnormal. E8 indicates the robot’s laser ranging sensor is not spinning or data is abnormal. The LIDAR is the core sensor for navigation and map building; its failure prevents the robot from mapping, localizing, and planning paths.
Common Causes
- The LIDAR head is entangled with hair or dust, restricting rotation.
- The LIDAR drive motor carbon brushes are worn or the motor is damaged; the LIDAR does not spin.
- Abnormal LIDAR supply voltage; the laser diode cannot operate normally.
- The LIDAR Hall (zero-position) sensor is faulty, unable to determine the rotation origin.
- The LIDAR receiver lens is covered with dust, weakening the received signal.
- The ribbon cable between the LIDAR and main board is loose or broken.
Self-Check Steps
- Check whether the LIDAR (the prominent round tower on top of the robot) spins freely — gently spin it with your hand; it should rotate smoothly.
- Use a small brush to clean dust from the LIDAR top cover and lens.
- Check for hair wrapped around the LIDAR gap — remove it with tweezers.
- Move the robot to a location with less intense light to test — strong sunlight infrared may interfere with the LIDAR.
- Restart the robot. If E8 persists, the LIDAR hardware is damaged. Contact TCL after-sales for LIDAR assembly replacement.