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ALoKa SSD-280 LS型B型超声诊断仪使用中监视器显示屏突然无光栅。而主机操纵盘各按键功能正常。针对这一故障,我们自行拆机检修。拆机后见显像管灯丝亮,排除了熔丝管熔断的可能性。用万用表测行扫描部分,行输出极振荡正常。用放电法对输出变压器高压嘴拉弧放电正常。故判定行扫描及输出正常。将故障范围缩小到显像管电
The ALoKa SSD-280 LS Type B Ultrasound System is in use with the monitor display suddenly unpriced. The host control panel keys are normal. In response to this failure, we disassemble maintenance. After disassemble see the tube lamp filament bright, ruled out the possibility of fuse tube fuse. With a multimeter line scan part of the line output pole oscillation normal. Using discharge method of the output voltage transformer high voltage arc discharge discharge is normal. It is determined that the line scan and output normal. Reduce the fault range to tube power