Abstract：Objective This paper aims to improve the maintenance ability of the equipment through the maintenance of three
cases of Vivid E9 failure. Methods According to the fault phenomenon and circuit principle, the possible cause of fault was
determined. Then the parts suspected to be faulty were replaced with other normal equipment to locate the fault point. Results
With detailed analysis to find out the root cause of failure to boot, such as low-voltage power supply failure and mainboard overload,
etc., the equipment can normally boot after troubleshooting. Conclusion PIt is true that even the same fault phenomenon may be
caused by a variety of reasons. However, in the case that the failure cannot be started, most of the faults occur in the back end.
Only by fully understanding the relevant circuit principles can provide a strong guarantee for quick and efficient maintenance.
卢亮亮. GE Vivid E9彩超诊断系统故障维修三例[J]. 中国医疗设备, 2019, 34(5): 170-172.
LU Liangliang. Three Cases of Fault Maintenance of GE Vivid E9 Color Ultrasonic Diagnosis System. China Medical Devices, 2019, 34(5): 170-172.
