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<p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"></span></p><p style="text-align: center;"><img data-s="300,640" data-type="png" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvckN5DnxNbBo3nuIzdrwndo2BWia6cYl6cd9LibrDhicEaVndiakdNGVgFtkGekRUyYfnCyfuL35E7JFg/0?wx_fmt=png" data-ratio="0.6804597701149425" data-w="435" /><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"></span><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">西门子Esprit螺旋CT机由计算机控制系统（ICS）、计算机影像重建系统（IRS）、扫描机架和扫描床组成。扫描机架与计算机控制系统（ICS）建立通讯，完成多种模式的扫描工作。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障一</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">启动整个系统程序进入用户界面时，出现扫描机架失败错误信息，并且扫描架左右两侧操作控制面板上的操作按钮没有点亮、床垂直高度，水平位置以及机架倾斜角度都显示-1888/-88/888，从故障现象上确定为扫描机架启动有问题。关掉电源重新启动，故障依旧。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障分析</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; color: rgb(122, 79, 214); box-sizing: border-box !important; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></span></strong></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important;">在重新启动过程中，未能听到很响亮的主接触器K2吸合的声音，于是打开机架右侧的电源分配供应部分（PDS），机架通电观察各继电器和接触器工作状态，发现继电器K3未吸合，主接触器K2也未吸合，自然扫描架内X线高压发生器的直流565V电源没有正常供给。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">扫描机架正常启动的流程是：<span style="max-width: 100%; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;">机架通电→K3吸合→L1、L3供给整流电路D450板→DC565Ｖ通过滑环供给机架旋转部分的高压电源组件D440板→将电源检测信号发送到X线控制Ｄ400板→K3断开→主接触器K2吸合→机架两侧控制面板上的操作按钮全部点亮→机架正常启动成功。</span></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">因此机架通电继电器K3首先吸合工作，如果不吸合只有两种情况，K3损坏或无DC24V电压。实测无DC24V电压，进一步打开扫描旋转机架后盖，观察发现600W的DC/DC变换器冷却风扇不旋转，主电源盒未工作，DC24V/25V、DC15V/16A、DC15V/8A×2、DC5V/8A全部无电压输出，输入电压DC354V正常，确定为600W的DC/DC变换器主电源盒损坏。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障检修</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">将损坏部件从扫描机架上拆下，打开封盖检测为主逆变器六个IREP450击穿损坏，<span style="max-width: 100%; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;">更换新件经调试每组输出电压可调电位器R1至额定电压，600W主电源盒修复。</span>然后装机接线，检查无误后，启动整个系统，K3吸合→K2吸合→机架两侧控制面板上的操作按钮全部点亮→机架正常启动，进入CHECKUP对话框，点击CHECKUP，进入CHECKUP检测，直至完成，故障排除。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障二</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; line-height: 2em; text-indent: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">本例故障现象与第一例基本相同，不同点是K3吸合→K2吸合→机架两侧控制面板上的操作按钮全部不亮。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 15px; color: rgb(127, 127, 127); box-sizing: border-box !important; word-wrap: break-word !important;"></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障分析？</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 16px; color: rgb(127, 127, 127); box-sizing: border-box !important; word-wrap: break-word !important;">从用户界面提示为扫描床、机架控制计算机电路未能完成联机过程。于是打开机架左侧控制箱，仔细检查控制计算机到机架的通讯连接电缆线未发现异常，观察FC/T1.V（扫描床动力变频器）H2（红灯）灭，FC/ROT（扫描机架旋转变频器）Ｈ２（绿灯）灭，H1（红灯）亮，工作正常。打开扫描床、机架控制电路盒PSS，测试＋24V电源及各保险管正常，散热风扇工作正常。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 16px; color: rgb(127, 127, 127); box-sizing: border-box !important; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(127, 127, 127); box-sizing: border-box !important; word-wrap: break-word !important;">在PSS盒母板电路上，叠装了三块小电路板：一块是AUDIO 音频放大器→完成声音通话功能；其中一块是MCB.MAS→完成X线毫安秒功能控制；另一块是MCB.PHS→完成扫描床、机架功能控制。对比MCB.MAS电路板和MCB.PHS电路板，这两块电路板均是双面SMD元件，板子型号相同，所用元件完全一样，经仔细观察后确定是一个数据转换精度高，功能完善的8位计算机控制系统，数据交换接口为RS232，不同点是在EPM7128SQC100-15，EEPLD电可擦可编程逻辑器件里植入的工作程序不一样。因此把两块电路板对换位置后插入PSS母板，</span><span style="max-width: 100%; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;">通电启动系统这时K3吸合→K2吸合→机架两侧控制面板上的操作按钮全部点亮→机架正常启动，这说明原MCB.PHS电路板性能不良或有损坏。</span></span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p><br /></p><section class="" style="margin-top: 20px; max-width: 100%; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; border: 0px none; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 20px; margin-right: auto; margin-left: auto; max-width: 100%; width: 260px; color: rgb(255, 255, 255); height: 29px; line-height: 29px; box-sizing: border-box !important; word-wrap: break-word !important; background-image: url("http://mmbiz.qpic.cn/mmbiz_png/nRERgwvTno1Hr2opKdCfkWsRkX1ibj0YPX3RGY8CDEgUQ2rNBwhLDOtwLjTTp5ibBPoYEhb2icL5J3Yia5qiaep8mxw/0?wx_fmt=png"); background-color: rgb(123, 177, 199); background-size: 100%;"></section><section style="margin-top: -29px; max-width: 100%; display: flex; justify-content: center; box-sizing: border-box !important; word-wrap: break-word !important;"><p class="" style="max-width: 100%; min-height: 1em; color: rgb(255, 255, 255); height: 29px; line-height: 29px; min-width: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障检修</strong></p></section></section><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; font-size: 16px; line-height: 25.6px; white-space: normal; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;">因MCB.MAS电路板和MCB.PHS电路板所用元件完全一样，可以采用对比参数检测法确定故障点，检测结果MCB.PHS电路板数据交换接口RS232电路LT1181ACSW。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(127, 127, 127); font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 16px; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;">端口参数差异很大，一般器件不良或损坏主要表现在端口上，因此更换一片全新LT1181ACSW接口电路，按原母板位置对应插入MCB.MAS和MCB.PHS电路板，开机启动整个系统，K3吸合→K2吸合→机架两侧控制面板上的操作按钮全部点亮→机架启动成功。</span><span style="max-width: 100%; font-size: 16px; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; color: rgb(255, 0, 0); box-sizing: border-box !important; word-wrap: break-word !important;"></span><span style="max-width: 100%; font-size: 15px; color: rgb(127, 127, 127); box-sizing: border-box !important; word-wrap: break-word !important;">显示器上弹出CHECKUP对话框，点击CHECKUP，进入CHECKUP检测状态，直至全部完成，故障排除。</span></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(0, 128, 255); font-size: 20px; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">评价：</span></strong></span><span style="max-width: 100%; font-size: 16px; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;">上述二例故障其表现基本相同，但故障点却不一样，可以利用听声音、查流程、看工作状态指示灯、相同部件比较法、在无备件更换的情况下，快速、节省的修复CT机，收到事半功倍的效果。</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; white-space: normal; font-size: 14px; text-indent: 2em; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 16px; color: rgb(0, 128, 255); box-sizing: border-box !important; word-wrap: break-word !important;"><br /></span></p><p style="font-size: 16px; text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-family: Arial, Verdana, sans-serif; font-size: 14px; line-height: 24px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(249, 249, 249);">广州市设备维修有限公司</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">地址：广州市天河区银利街银利茶叶博览中心E栋4楼E4030室 </span><span style="max-width: 100%; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important;"> </span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important;">邮编：510507</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">电话：(+86)020-8722 8723 8764 5360 8764 2943 </span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; 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; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; 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; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">微信公众帐号：</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><img data-ratio="1" src="http://mmbiz.qpic.cn/mmbiz/dx3KibwtDhvfCZvZq5PcthnDKlnnq3AalhbichW77J3B70osicTickklZybNKUZqc44DZ0oaWaHm2p0TaA9478icwPg/640?wx_fmt=jpeg" data-type="jpeg" data-w="120" width="auto" style="box-sizing: border-box !important; word-wrap: break-word !important; visibility: visible !important; width: auto !important;" /></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">维修咨询：QQ: 712638 404</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">设备咨询: QQ: 712638 405</span></p><p style="font-size: 16px; white-space: normal; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 24.381px; text-align: justify; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; color: rgb(102, 102, 102); font-family: Simsun; font-size: 13px; line-height: 22px; text-align: center; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(247, 247, 247);"><span style="max-width: 100%; text-align: justify; box-sizing: border-box !important; word-wrap: break-word !important;"></span></span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">软件咨询：QQ: 712638 406</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; 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; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">配件咨询：QQ: 712638 407</span></p><p style="text-indent: 0em; white-space: normal; max-width: 100%; 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box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">电子邮箱：service@yiliaoshebeiweixiu.com</span></p><p><br /></p>
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发表于 2020-10-19 23:33:56