迈瑞DC-8彩超扇形区无回声图像故障维修

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                    <p><img data-type="gif" class="__bg_gif " data-ratio="0.10555555555555556" data-w="720" src="http://mmbiz.qpic.cn/mmbiz/M2H0aGBjWUTRia7nqkArYeKZUqEfdmpNibMPiaZk4gvlWk5v5lUKyXhjJP4CENKQeQt5HI8zwcTCWJOkicfWJiatdJQ/640?wx_fmt=gif" style="font-family: -apple-system-font, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quotingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;"  /></p><p style="line-height:130%;"><strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;">故障现象：</span></strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;"></span></p><p style="line-height:130%;"><strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;"><br  /></span></strong></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">迈瑞DC-8彩超正常开机后，扇形区无回声图像，而且探头型号可以被正常识别，探头在非冻结状态下也有超声正常发射的吱吱吱声响。</span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">&nbsp;</span></p><p style="line-height:130%;"><strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;">故障分析与处理：</span></strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;"></span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;"><br  /></span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">迈瑞DC-8系统主要由CW模块，接收模块，发射模块，信号处理模块，4D模块，CPU模块，输入输出模块等组成，其概略的功能框图如下：</span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">&nbsp;</span></p><p style="text-align: center;"><img class="rich_pages" data-ratio="0.5595854922279793" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvfiaewoVVUDgibib9JtDrdvTMAFXfHzY4SacWNbKnJLiabQgO6os7DT37rgot6JFZcpzbI4ic9hPEIk9lA/640?wx_fmt=png" data-type="png" data-w="1158" style=""  /></p><p style="line-height:130%;"><br  /></p><p style="line-height:130%;"><span style="font-size: 15px;font-family: 宋体;color: rgb(0, 0, 0);"><span style="font-family: 宋体;">对于此类故障，机器可以正常启动，扇形区无回声，一般是探头、发射端、接收端的故障，由于机器可以正常开关机，首先切换探头，发现机器上四把探头都是同样的故障，而四把探头出现同样故障的概率极低，再取一把其中同型号完好的探头上机测试，发现故障依旧，由此可以排除探头的可能性。而探头在非冻结状态下有超声正常发射的吱吱吱声，说明机器的超声波发射是正常的，这样就可以确定故障发生在机器的接收端，而负责超声波接收的模块就是机器的接收板。由此可以确定为接收板引起了这台迈瑞</span>DC-8扇形区无回声图像故障，更换接收板后，故障排除，机器可以正常使用。</span><br  /></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">&nbsp;</span></p><p style="line-height:130%;"><strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;">维修总结：</span></strong><span style="color: rgb(0, 0, 0);font-size: 15px;font-family: 宋体;"></span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;"><br  /></span></p><p style="line-height:130%;"><span style="font-family: 宋体;color: rgb(0, 0, 0);font-size: 15px;">在此故障的维修过程中，对于熟悉机器的结构与功能原理很重要，这样在维修的过程中就可以快速地判断故障点在哪里。在机器出现故障的时候，不必急于拆卸机器，而要保持清醒的头脑，确定故障由什么模块负责处理，相应地就能确定故障板件，快速维修，排除故障。而平时机器在正常使用的时候也要注意定期维护保养，及时排除由于散热、电压异常、</span><span style="color: rgb(0, 0, 0);font-family: 宋体;font-size: 15px;">接地异常、插头松动、排线接口松动、灰尘积压等异常情况，避免由此造成严重的机器故障。</span></p><p><br  /></p><p><br  /></p><p style="max-width: 100%;min-height: 1em;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);font-family: 微软雅黑;font-size: 16px;color: rgb(62, 62, 62);line-height: 25.6px;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 0, 0);font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">赞<span style="max-width: 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!important;word-wrap: break-word !important;">交流Q群：1106 11074</span></p><p style="max-width: 100%;min-height: 1em;letter-spacing: 0.544px;text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);color: rgb(62, 62, 62);font-size: 12px;font-family: Arial, Verdana, sans-serif;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 0, 0);font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">阿里店铺网址：https://renchengyiliao.1688.com</span></p><p style="max-width: 100%;min-height: 1em;letter-spacing: 0.544px;text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);color: rgb(62, 62, 62);font-size: 12px;font-family: Arial, Verdana, sans-serif;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 0, 0);font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">电子邮箱：sales@parts-ultrasound.com</span></p><p><br  /></p>