GE 730Expert图像干扰严重故障维修

admin · 发表于 2020-10-19 22:39:07

<section style="margin-bottom: 5px;white-space: normal;text-align: center;"><img class="rich_pages js_insertlocalimg" data-backh="253" data-backw="578" data-ratio="0.43859649122807015" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_gif/dx3KibwtDhvd30KriaSbvhoncZUg9ZbETjscR1rN5dSCfznIuBFJJWmiauFOFKJq6LKLDom0CYRBzWtBO9Qp0jHhw/640?wx_fmt=gif" data-type="gif" data-w="798" style="width: 100%;height: auto;" /></section>机器类型：GE彩色超声多普勒诊断仪机器型号：730 Expert1、  故障现象：机器开机后，图像干扰严重，无法正常工作。如下图：<img class="rich_pages js_insertlocalimg" data-backh="207" data-backw="273" data-ratio="0.7582417582417582" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvcoIgUf59GzN3zQYzpvIqDQB0Hgpc5QoQbjCicPLXF6UQ8JCL0s0CzRWWmpRMv8ibCkjFy43VojiaZnA/640?wx_fmt=png" data-type="png" data-w="273" style="width: 100%;height: auto;" />2、  故障分析与原因： 根据故障现象分析，首先排除探头故障，发现其他探头在本机器上也有同样故障，把探头拿到其他730机器上，发现图像并无此类干扰现象。再通过在电源输入端添加滤波器，和接好电线（接地电阻小于4欧姆），故障现象依然存在。根据机器板件结构判断是CRS板损坏引起的故障，在更换同一版本CRS板件后，装机开机测试，发现故障消除，之后机器使用老化一天，再无出现此类故障。如下图：<img class="rich_pages js_insertlocalimg" data-backh="487" data-backw="578" data-ratio="0.8427370948379351" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvcoIgUf59GzN3zQYzpvIqDQwHXwZxuHkpN9RibQmCzEZlKdCoBdFTyic6eS2IQBqvyPQwgcTeIxwnyA/640?wx_fmt=png" data-type="png" data-w="833" style="width: 100%;height: auto;" />3、  故障处理：更换同一版本CRS板件后，机器正常工作。如下图：<img class="rich_pages js_insertlocalimg" data-backh="347" data-backw="401" data-ratio="0.8653366583541147" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvcoIgUf59GzN3zQYzpvIqDQet3ibOk4tPMO2Jmkf5enMO77HicNDYDZyUt8fR0pyTGoJ1fZ6RdNNLmw/640?wx_fmt=png" data-type="png" data-w="401" style="width: 100%;height: auto;" />4、维修总结：在此故障的维修过程中，要熟悉机器的系统结构与系统功能原理，理解什么模块负责什么功能，有时会出现多个故障，理性分析，找出准确的故障点，从而排除故障，保证机器正常使用。<section style="white-space: normal;text-align: center;"> </section><p style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", &quot

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