X线机常见4故障排除方法

admin · 发表于 2020-10-19 23:31:12

<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);"><span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">1 故障一 <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);"><span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">1.1 故障现象同样是不曝光故障。 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">1.2 检查延时继电器工作正常。定时器JSB进线端101、210有电压，定时器得电应工作。然而测量定时器JSB输出触点102、202两瑞有电压，说明JSB1没有闭合，可以判断定时器有问题。拆下检查，发现驱动继电器的中功率管C极虚焊，致使继电器不工作，修复后试机正常。<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);"> <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">2 故障二 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">2.1 故障现象按PA、SC不工作，球管不曝光。 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">2.2 检查 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">旋转阳极运行正常，YJ闭合。用万用表测ls延时器XSJ进线端子107、234两端电压，有电压，表示该延时器能正常工作。测输出端236、266电压，正常情况下ls后继电器工作，常开触点闭合，路端电压应为0。然而测量有电压，说明触点未闭合，判断延时继电器有问题。拆开后发现12V稳压管击穿。换稳压管后故障排除，试机正常。<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);"> <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">3 故障三<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);"><span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">3.1 故障现象据反映，近日X线机曝光过量，片子发黑，日甚。 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">3.2 检查试机时发现不管定时器拨在那一档，曝光定时器SC均要吸合较长时间才能释放-接触器铁芯表面生锈或有污垢，也会出现断电后延时释放现象。到底是定时器问题还是接触器问题，用万用表测量SC线圈(245、101)两端工作电压，将定时器拨在0.5s档，按PA，电压在规定时间内消失，而SC仍吸合，过了较长时间才释放。用其他时间档试仍是如此。故判断定时器正常，接触器有问题。拆下处理后试机正常。 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">在平时的维修过程中，虽然遇到的故障各异，然而运用学到的理论知识，通过分析，使用一些可靠的测试方法，即可快速排除故障。<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);"> <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">4 故障四 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">4.1 故障现象同是该机型，仍是不能曝光故障。 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;">4.2 检查旋转阳极工作正常，1s延时器工作正常：测定时器输出触点JSBl，102、202路瑞电压，曝光时无电压，照例SC应能工作，然而SC不工作。遂测SC副触点(GBJl)202、254两端电压，有电压，说明定时器工作正常，故障出在保护电路上。拔下过载电路板检查，原来是小继电器GBJ触点接触不良。处理后试机工作正常 <span style="max-width: 100%; color: rgb(68, 68, 68); font-family: Tahoma, Helvetica, SimSun, sans-serif; font-size: 14px; line-height: 21px; box-sizing: border-box !important; word-wrap: break-word !important;"> <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);">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       <p style="text-indent: 0em; white-space: normal; max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; 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X线机常见4故障排除方法

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