阿洛卡SSD-1100型B超机故障检修案例

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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="white-space: normal;letter-spacing: 0.544px;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;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><span style="font-size: 15px;">来源：医学工程在线</span></p><p><br  /></p><p><span style="font-size: 15px;"></span><strong><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">故障一：</span></strong></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;"><br  /></span></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">开启电源，其显示屏需要预热30分钟，但光栅出来后，无法成像，闪动的光栅呈垂直状跳动，偶尔有约10mm左右宽的水平亮线出现；数十秒钟后又恢复闪动，一直不能正常使用。拆开显示屏的后盖，清扫灰尘以后，先把场电路的三只可调电阻VR5、VR6、VR7用清洁剂喷洗作清洁处理；然后，用改锥转动上述可调电阻，转动调整目的是使三只可调电阻的接触良好，所以注意转动后应恢复为原来的位置，不要弄乱，以免整机的场线性改变。此后再开机，故障依旧。&nbsp;<br style="word-wrap: break-word;"  />&nbsp; &nbsp;&nbsp;</span></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">该机的场扫描电路是由一块TDA1175的IC集成块组成的电路，仔细检查IC块周围电路的外围元件，没有发现异常。根据以往的维修经验，将IC块的所有接脚用电烙铁全部仔细补焊一遍。焊接的过程中发现IC块的接脚有很多虚焊、起泡、空焊。经加锡焊实后开机，显示屏立即出现稳定完整的显示光栅，并能正常成像。故障排除。</span><br style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;font-size: 14px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"  /><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">&nbsp; &nbsp;&nbsp;</span></p><p><strong><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">故障二：</span></strong></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;"><br  /></span></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;">开机图像正常，但在使用过程中，发现其八段STC在调节时，想移动一下远场的五、六、七段调节钮，但一碰上去就会使整个图像远场发朦，云雾状一片发白，很难找到最佳的工作点，直接影响临床上B超影像的诊断。其时间/增益的调节STC是由八只直滑式电位器组成，在调节中有死点和接触不良的现象。用清洁剂对每只电位器进行喷洗，再反复来回拨动电位器，清除其内里的积尘。开机，再调节STC的每段近、远场的移动顺畅、灵活、无失真，近、远场的图像很好。STC调节恢复正常，故障排除。&nbsp;<br style="word-wrap: break-word;"  />&nbsp; &nbsp;</span></p><p><span style="word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);font-size: 15px;"> 还有一台阿洛卡SSD-1400型B超机也存在着同样的故障现象。用上述的方法同样可以解决。分析该类机的直滑式电位器采用了同一厂家的产品配件，质量欠佳。又因为直滑式电位器在该机上是水平安装、滑柄朝上安置积灰面大，使用的时间一长，电位器上碳膜磨损而产生的碳末，又与日常灰尘积覆在其碳膜的表面；因此而产生接触不良和噪声，使机器的调节失常，最终造成B超显示图像的失真和调整困难。</span><span style="font-size:24px;word-wrap: break-word;color: rgb(68, 68, 68);font-family: &quot;microsoft yahei&quot;, yahei, simhei, hei, Tahoma;text-align: start;background-color: rgb(255, 255, 255);"></span><span style="font-size: 15px;"><br  /></span><br  /></p><p><br  /></p><p style="white-space: normal;background-color: rgb(255, 255, 255);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="color: rgb(0, 0, 0);">赞<span style="max-width: 100%;line-height: 25px;box-sizing: border-box !important;word-wrap: break-word !important;">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></p><p style="white-space: normal;background-color: rgb(255, 255, 255);max-width: 100%;min-height: 1em;letter-spacing: 0.544px;font-family: 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border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 14px;text-indent: 0em;font-family: Arial, Verdana, sans-serif;line-height: 1.75em;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">地址：广州市天河区高塘路235号时代E-PARK7栋801、802室&nbsp; &nbsp; &nbsp;</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;line-height: 1.75em;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">邮编：510507</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">电话：(+86)020-8722 8723 &nbsp; &nbsp;8764 5360 &nbsp; &nbsp;</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">传真：020-8722 8623</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">全国统一免费服务热线：400-020-6788</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;line-height: 24.381px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">公司官网：http://gb.parts-ultrasound.com/</span></p><p style="white-space: normal;background-color: rgb(255, 255, 255);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-size: 14px;font-family: Arial, Verdana, sans-serif;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">微信公众帐号：</span></p><p 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;background-color: rgb(255, 255, 255);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;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);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;background-color: rgb(255, 255, 255);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 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sans-serif;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">配件咨询：QQ: &nbsp; 712638 407</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">交流Q群：1106 11074</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">阿里店铺网址：https://renchengyiliao.1688.com</span></p><p style="text-indent: 0em;white-space: normal;background-color: rgb(255, 255, 255);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%;font-size: 14px;color: rgb(0, 0, 0);box-sizing: border-box !important;word-wrap: break-word !important;">电子邮箱：sales@parts-ultrasound.com</span></p><p><br  /></p><p><br  /></p>