Abstract：This paper analyzed two typical hardware failures of Siemens Definition AS intraoperative CT. In one case, the scanning
frame was not powered on due to power failure, and F1 switch tripping. After reset, the device restarts normally. As the number
of power outages increases, it was difficult to reset the F1 switch. The solution to the problem was to replace the industrial relay
SIEMENS SIRIUS 3RS1800-2BP00 after normal operation. Another fault phenomenon was that the display screen of the scanning
frame was gray stripe, and the fault code 216 was found in the fault log. The fault phenomenon described that the fault point
existed in the XDC module. The troubleshooting method was to replace the DC-DC module with brand TDK-Lambda and model
PH50S280-5. The failure maintenance method and its technical rules based on CT circuit board were used to find and repair two
typical hardware faults, which provides reference value for the effective improvement of medical electronic equipment maintenance
technology level.
孔康辉，赵东升，张龙. 西门子Definition AS 术中CT两例硬件故障维修分析[J]. 中国医疗设备, 2022, 37(11): 176-179.
KONG Kanghui, ZHAO Dongsheng, ZHANG Long. Two Cases of Hardware Failure Maintenance in Siemens Definition AS Intraoperative CT. China Medical Devices, 2022, 37(11): 176-179.
