迈瑞DC-3显示器反复不显示故障维修

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                    <p style="text-align: center;"><br  /></p><p><span style="font-size: 12px;"><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="white-space: normal;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;background-color: rgb(255, 255, 255);color: rgba(0, 0, 0, 0.298);font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;"  /></span><br  /></p><p><strong><span style="font-size: 12px;">机器类型：彩色超声多普勒诊断仪</span></strong></p><p><strong><span style="font-size: 12px;">机器型号：迈瑞DC-3</span></strong><span style="font-size: 12px;"></span></p><p><strong><span style="font-size: 12px;">1、故障现象：</span></strong><span style="font-size: 12px;"></span></p><p><span style="font-size: 12px;">机器开机后，显示器一会显示一会黑屏，反复如此，间隔3秒左右，并发出吱吱吱声音，但是工作站显示正常。</span></p><p style="text-align: center;"><img class="rich_pages" data-ratio="0.75" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdZ6RibPEN3lTLnjQXM4NTU2xOT8kVzcWiaStQHFrGfLic1Y57Gnm4zchDHnuCiaby3WaTjtwp6ic5EEaw/640?wx_fmt=jpeg" data-type="jpeg" data-w="400" style=""  /></p><p><strong><span style="font-size: 12px;"></span></strong></p><p><strong><span style="font-size: 12px;">2、故障分析与原因：</span></strong><span style="font-size: 12px;"></span><br  /></p><p><span style="font-size: 12px;">根据故障现象，基本可以确定是显示器本身的问题，找一个显示器换上测试，可以正常显示，确定是显示器本身问题。拆开显示器后盖，经检查是电源输入端，整流电路后的滤波电容坏了，更换同参数电容后，装机开机测试显示正常。</span></p><p style="text-align: center;"><img class="rich_pages" data-ratio="0.8175" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdZ6RibPEN3lTLnjQXM4NTU2NQTySXJAzcOAAvXicMdiaJ6Kib0U4a9bM5njA7ktMaoPzicoicTibhoTdTGQ/640?wx_fmt=jpeg" data-type="jpeg" data-w="400" style=""  /></p><p><span style="font-size: 12px;"></span><br  /></p><p><strong><span style="font-size: 12px;">3、故障处理：</span></strong><span style="font-size: 12px;"></span></p><p><span style="font-size: 12px;">更换相同参数电容，机器显示正常。&nbsp; &nbsp;&nbsp;</span></p><p style="text-align: center;"><img class="rich_pages" data-ratio="0.75" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdZ6RibPEN3lTLnjQXM4NTU2dcKsApGHrrxHpMYVickCpmTQp2HYjhaRbPpWyJ1SlwAsZpK76ZUia3zQ/640?wx_fmt=jpeg" data-type="jpeg" data-w="400" style=""  /></p><p><strong><span style="font-size: 12px;"><br  /></span></strong></p><p><strong><span style="font-size: 12px;">4、维修总结：</span></strong><span style="font-size: 12px;"></span></p><p><span style="font-size: 12px;">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，理性分析，更要善于观察，熟悉各种元器件工作原理，这样可以快速准确地找到故障点，排除故障。</span></p><p><span style="font-size: 12px;"><br  /></span></p><p><span style="font-size: 12px;"><br  /></span></p><p style="white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;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: 100%;line-height: 25px;">是一种友谊 |&nbsp;<strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">分享</strong>传递智慧</span></span><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;font-family: 微软雅黑;font-size: 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1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 24.381px;color: rgb(0, 0, 0);font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">公司官网：http://www.parts-ultrasound.com/</span></p><p style="white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;font-family: 微软雅黑;font-size: 16px;color: rgb(62, 62, 62);line-height: 24.381px;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 1.75em;text-indent: 0em;font-family: Arial, Verdana, sans-serif;color: rgb(0, 0, 0);font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;">微信公众帐号：</span></p><p style="white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;font-size: 16px;text-align: left;box-sizing: border-box !important;word-wrap: break-word !important;"><img class="rich_pages" data-ratio="1" data-s="300,640" data-type="png" data-w="344" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvcvQ5W66skZY3mYSqpoRYIMn3LOS0l9GkWVqSdiaw2RiclU8MiatfDmia3YvXxPRgDFiaZFibgUOEEfaYhA/640?wx_fmt=png" style="box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: 344px !important;"  /></p><p style="text-indent: 0em;white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;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;">维修咨询：QQ: &nbsp;712638 404</span><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="text-indent: 0em;white-space: normal;max-width: 100%;min-height: 1em;letter-spacing: 0.544px;color: rgb(62, 62, 62);font-size: 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