超声是医院常用的诊断设备。本文首先分析GE Logiq S8超声诊断系统的部件构成，然后列举了3例该设备的典型故障，分 别是彩色图像花屏故障、轨迹球光标来回跳动、增益旋钮不能正常使用，并将故障的分析与排查方法进行总结。此三类故障为 超声诊断系统常见故障，我们通过学习这三个故障的排除方法，可以快速地对相似的故障进行及时维修。

As we all know, ultrasound is a common diagnostic equipment in hospitals. Firstly, the components of GE Logiq S8 ultrasonic diagnosis system were analyzed, and then three typical faults of the equipment were listed, which were the fault of color image screen, trackball cursor bouncing back and forth, and gain knob not being used normally. At the same time, the fault analysis and troubleshooting methods were summarized. These three types of faults are common faults of ultrasonic diagnosis system. By learning the troubleshooting methods of these three faults, we can quickly carry out timely maintenance of similar faults.