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美国HP—43120型除颤监控器是一种自动化程度很高的复苏急救设备.故障现象仪器在使用过程中,突然机内“啪”的一声,紧接着各种信号消失,所有按键都不起作用,仪器不工作.故障检修打开机盖,发现电源电路板上的功率放大管“3—058”已裂开(显然上述机内“啪”的声音是此管炸裂的声音).这是因为通过此管的电流过大引起的.用数字万用表向前检查,发现保护继电器G6B—1114P不工作,焊下此继电器用直流电源检查,继电器不动作,已坏.查有关资料,“3—058”是一只2A45W的晶体管,G6B—1114P是一只控制交流 250 V、5 A和直
The United States HP-43120 type defibrillation monitor is a kind of resuscitation emergency equipment with high degree of automation. Symptoms During the use of the instrument, the machine suddenly “clicks”, followed by a variety of signals disappear, all buttons do not play Function, the instrument does not work. Troubleshooting Open the cover and found that the power amplifier tube “3-058” on the power circuit board has cracked (obviously the above “buzz” sound is the sound of this pipe burst). This is because Excessive current caused by this tube. Checked forward with digital multimeter and found that the protection relay G6B—1114P did not work. Under welding, this relay was checked with DC power supply. The relay did not operate and was bad. Check the relevant information,” 3-058 "is a 2A45W transistor, G6B-1114P is a control AC 250 V, 5 A and straight