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故障现象:开机后踩下脚踏开关实施治疗时,开始正常,几秒钟后只听“啪嗒”一声,高压被切断。此后踩脚踏不起作用。关机后重新开机,故障重复出现。分析检查:YYJG1A型CO_2激光治疗器机内设有三种保护装置——过压保护、过流保护和断水保护电路。通常,出现高压被断故障,应依次对脚踏开关、控制电路、保护
Symptoms: When the foot switch is pressed to start the treatment after starting up, it starts to work normally. After a few seconds, it only hears a “click” and the high pressure is cut off. Then stepping on the pedal does not work. Reboot after shutting down and the fault reappears. Analysis and inspection: YYJG1A type CO2 laser therapeutic machine is equipped with three kinds of protection devices - overvoltage protection, overcurrent protection and water protection circuit. Normally, high pressure is broken and should be followed by foot switch, control circuit, protection