东芝Aplio400开不了机故障维修

admin · 发表于 2020-10-19 22:40:09

<img class="rich_pages js_insertlocalimg" data-backh="117" data-backw="578" data-cropselx1="0" data-cropselx2="578" data-cropsely1="0" data-cropsely2="117" data-ratio="0.2015625" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdaoLyYB5XBZDWW5tA6THRq1aemdicXWypwZ4kriaz1lY37fcH7CuVpSdjhcpWCXoLcibzLx4gam6U2A/640?wx_fmt=jpeg" data-type="jpeg" data-w="1280" style="width: 100%;height: auto;" />机器类型：彩色超声多普勒诊断仪机器型号：东芝Aplio4001、  故障现象：按下开机键瞬间掉电，无法开机。2、  故障分析与原因：由于机器不能开机，首先怀疑电源问题，分析系统原理可知，机器启动电压是DC12V，首先测量此电压是否正常，拆开机器，插上电源，经测量，AC-DC开关电源DC12V无输出，而DC12V正是输出给PC主板以启动机器用，由此机器开不了机就是AC-DC损坏导致无DC12V输出所致，把AC-DC电源拆出，通过维修此电源，装机测试，机器可以正常启动，如下图：<img class="rich_pages js_insertlocalimg" data-backh="676" data-backw="402" data-ratio="1.681592039800995" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvdzocwrib8S1Kj9ticfkuIbcsft1st3XB8VJevwpaAkzgPO5OYpxnR93U62JocibW27qApyBrcTUz4fQ/640?wx_fmt=png" data-type="png" data-w="402" style="width: 100%;height: auto;" />3、  故障处理：维修AC-DC开关电源。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，在启动类故障中，要熟悉启动电路，熟悉电子元器件工作原理，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。<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

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;line-height: 27.2px;widows: 1;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"> <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

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: center;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;">-end- <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

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: center;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;">部分图片来源于网络，如有侵权，请联系小编进行删除<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

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: center;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;">以上文章及作品皆为仁成所有，转载请注明出处<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

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: center;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"> <section data-role="outer" label="

owered by gulangu" style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", &quot

ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><section data-tools="gulangu" data-id="92886" style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><section style="padding: 10px;max-width: 100%;box-sizing: border-box;color: rgb(46, 164, 166);overflow-wrap: break-word !important;"><section style="max-width: 100%;display: flex;justify-content: center;align-items: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"><section style="max-width: 100%;font-size: 12px;line-height: 1.6em;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;">▼</section><section data-brushtype="text" style="padding-right: 10px;padding-left: 10px;max-width: 100%;box-sizing: border-box;line-height: 1.6em;letter-spacing: 1px;text-align: center;overflow-wrap: break-word !important;">往期精彩回顾</section><section style="max-width: 100%;font-size: 12px;line-height: 1.6em;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;">▼</section><section style="max-width: 100%;font-size: 12px;line-height: 1.6em;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"> </section><section style="max-width: 100%;font-size: 12px;line-height: 1.6em;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"> </section><section style="max-width: 100%;font-size: 12px;line-height: 1.6em;text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"> </section></section></section></section></section><a target="_blank" href="http://mp.weixin.qq.com/s?__biz=MjM5Nzk4MTg5Mw==&mid=2654232621&idx=1&sn=39131b363631ef5d9e1c65e8101e873e&chksm=bd117b878a66f2913ba785eca9d471d104d6113bbc5941161253beb12566b603cea80325727e&scene=21#wechat_redirect" textvalue="你已选中了添加链接的内容" data-itemshowtype="0" tab="innerlink" data-linktype="1"><img class="rich_pages js_insertlocalimg" data-backh="160" data-backw="578" data-ratio="0.2765625" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdzocwrib8S1Kj9ticfkuIbcsyXzzXb7pSCJPAxd8ibqBibicNJ6mvSGbbCzQNDnqYdTjdzhklfsARvFRg/640?wx_fmt=jpeg" data-type="jpeg" data-w="1280" style="width: 100%;height: auto;margin: 0px;" /></a><a target="_blank" href="http://mp.weixin.qq.com/s?__biz=MjM5Nzk4MTg5Mw==&mid=2654232597&idx=1&sn=a10e27db47357b91f96a2e10c109d8c9&chksm=bd117bbf8a66f2a9daf419066f0a465da69acc72bd032df99cde22fffbd1bd3b07b5711363ac&scene=21#wechat_redirect" textvalue="你已选中了添加链接的内容" data-itemshowtype="0" tab="innerlink" data-linktype="1"><img class="rich_pages js_insertlocalimg" data-backh="160" data-backw="578" data-ratio="0.2765625" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdaoLyYB5XBZDWW5tA6THRqJ2CYw0gV8GD2BmKu4fjzKw3XQQueficiaIeGe1rNAobqWqxzz8OlcbzQ/640?wx_fmt=jpeg" data-type="jpeg" data-w="1280" style="width: 100%;top: auto;left: auto;right: auto;bottom: auto;margin: 0px;height: auto;" /></a> <a target="_blank" href="http://mp.weixin.qq.com/s?__biz=MjM5Nzk4MTg5Mw==&mid=2654232597&idx=2&sn=997a2638b580c966f5285492c8a595f9&chksm=bd117bbf8a66f2a9f7ae42fe1f65ead72babb1a32b6cb9ec432bc67fd03b561c42a8bf12e925&scene=21#wechat_redirect" textvalue="你已选中了添加链接的内容" data-itemshowtype="0" tab="innerlink" data-linktype="1"><img class="rich_pages js_insertlocalimg" data-backh="160" data-backw="578" data-ratio="0.2765625" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdaoLyYB5XBZDWW5tA6THRquCrz7Sul2BTkiaxtnmjGYoFjVyG6AC6439IyWq9xqwm1HtOpZ7JXLVA/640?wx_fmt=jpeg" data-type="jpeg" data-w="1280" style="width: 100%;height: auto;" /></a><a target="_blank" href="http://mp.weixin.qq.com/s?__biz=MjM5Nzk4MTg5Mw==&mid=2654232566&idx=2&sn=528956df2663b209eb3791f5cfc40811&chksm=bd11445c8a66cd4ae8382adcaaf81ac4a8ca7bcaa890fa953fafc519808c42edc9c3d2c68a57&scene=21#wechat_redirect" textvalue="你已选中了添加链接的内容" data-itemshowtype="0" tab="innerlink" data-linktype="1"><img class="rich_pages js_insertlocalimg" data-backh="160" data-backw="578" data-ratio="0.2765625" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdaoLyYB5XBZDWW5tA6THRqUVY3Cxd5PsjL5gTIW3LNx8AM84EfEcJkKryUqgBAXHriaiaYQcUJyP5w/640?wx_fmt=jpeg" data-type="jpeg" data-w="1280" style="width: 100%;height: auto;" /></a><img class="rich_pages js_insertlocalimg" data-backh="270" data-backw="578" data-cropselx1="0" data-cropselx2="578" data-cropsely1="0" data-cropsely2="270" data-ratio="0.46707739699653444" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvdaoLyYB5XBZDWW5tA6THRqTufQJgss2BJSGLrET00ibjaCkGv7BX6SRF9golHNV9d2gn07eWvvmIA/640?wx_fmt=png" data-type="png" data-w="2597" style="width: 100%;height: auto;" />

		自动登录	找回密码
密码			立即注册