島津ＷＨＡ 1 0移动Ｃ形臂Ｘ线机高压部分是该机的故障多发部位 ,经常表现为该机高压逆变电路大功率三极管2ＳＤ1 0 66及耐高压光耦ＰＣ52 5的击穿。这 2种器件市场上都不容易购买到。为了尽快修好机器 ,也为了节约经费 ,笔者通过研究该机电路原理 ,发现可用其他器件及电路板来 Shimadzu WHA 1 0 mobile C-arm X-ray machine high-voltage part of the aircraft is the machine’s fault-prone parts, often showing high-power inverter circuit high-power transistor 2SD1 0 66 and high-voltage optocoupler PC52 5 breakdown. Both of these devices are not readily available on the market. In order to repair the machine as soon as possible and also to save money, the author studied the circuit principle of the aircraft and found that other devices and circuit boards can be used.