眼科B超机维修一例

admin

                    

                    

                    
                    
                    <section style="box-sizing: border-box;font-size: 16px;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;margin-top: 10px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section style="display: inline-block;width: auto;vertical-align: top;flex: 100 100 0%;align-self: flex-start;height: auto;margin-right: -40px;border-width: 0px;border-radius: 0px;border-style: none;border-color: rgb(255, 164, 30);box-sizing: border-box;"><section style="display: inline-block;width: 100%;vertical-align: top;border-style: solid;border-width: 1px;border-radius: 0px;border-color: rgb(255, 164, 30);box-sizing: border-box;" powered-by="gulangu"><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;border-style: solid;border-width: 10px;border-radius: 0px;border-color: rgb(255, 255, 255);box-sizing: border-box;"><img data-ratio="0.9297386" src="http://mmbiz.qpic.cn/mmbiz_png/qO8ibk5yXWXIFwbLtpsdiapZR301QpcskQwIp3tO9yWbnHF4Lb2CG2oHD3yIzsMZ9dgjRVIUcMNaIYoiaJtuBrFZg/640?wx_fmt=png" data-type="png" data-w="612" style="vertical-align: middle;box-sizing: border-box;"  /></section></section></section><section style="text-align: center;margin-top: 10px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;height: 40px;vertical-align: top;overflow: hidden;background-color: rgba(255, 164, 30, 0.2);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="display: inline-block;vertical-align: top;width: auto;align-self: flex-start;flex: 100 100 0%;box-sizing: border-box;"><section style="text-align: right;justify-content: flex-end;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: auto;vertical-align: top;min-width: 10%;max-width: 100%;height: auto;box-sizing: border-box;"><section style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="background-color: rgb(255, 164, 30);height: 1px;box-sizing: border-box;line-height: 0;"><br  /></section></section><section style="margin-top: 5px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="font-size: 15px;color: rgb(255, 164, 30);box-sizing: border-box;"><p style="box-sizing: border-box;">眼科B超机</p></section></section><section style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="font-size: 25px;color: rgba(255, 164, 30, 0.2);line-height: 1;letter-spacing: 0px;box-sizing: border-box;"><p style="box-sizing: border-box;"><br style="box-sizing: border-box;"  /></p></section></section></section></section><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;border-width: 10px;border-radius: 0px;border-style: solid none solid solid;border-color: rgb(255, 255, 255);box-sizing: border-box;"><img data-ratio="0.75" src="http://mmbiz.qpic.cn/mmbiz_png/qO8ibk5yXWXIFwbLtpsdiapZR301QpcskQk55xekO0WkRf9QvMsqRlwVsq0nnNoas2VXBn0ygGE2Vps6d4pF3pUw/640?wx_fmt=png" data-type="png" data-w="1080" style="vertical-align: middle;box-sizing: border-box;"  /></section></section></section></section></section><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;margin: 15px 0% 10px;box-sizing: border-box;"><section style="display: inline-block;width: auto;vertical-align: top;border-width: 0px 1px 0px 0px;border-right-style: solid;border-top-right-radius: 0px;border-right-color: rgb(255, 164, 30);flex: 100 100 0%;align-self: flex-start;height: auto;margin-right: 8px;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;transform: translate3d(8px, 0px, 0px);margin-top: 1px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;"><section style="display: inline-block;vertical-align: bottom;width: auto;flex: 10 10 0%;align-self: flex-end;height: auto;border-style: solid solid none none;border-width: 1px;border-radius: 0px;border-color: rgb(255, 164, 30);line-height: 1.6;box-sizing: border-box;"><section style="text-align: left;font-size: 0px;margin: -1px 0% -10px;transform: translate3d(-8px, 0px, 0px);-webkit-transform: translate3d(-8px, 0px, 0px);-moz-transform: translate3d(-8px, 0px, 0px);-o-transform: translate3d(-8px, 0px, 0px);justify-content: flex-start;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 8px;height: 20px;vertical-align: top;overflow: hidden;border-width: 1px 0px 0px 1px;border-left-style: solid;border-bottom-left-radius: 0px;border-left-color: rgb(255, 164, 30);border-top-style: solid;border-top-left-radius: 0px;border-top-color: rgb(255, 164, 30);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 0 0 0%;border-width: 0px 0px 1px;border-bottom-style: solid;border-bottom-right-radius: 0px;border-bottom-color: rgb(255, 164, 30);height: auto;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;margin-right: 0%;margin-bottom: -6px;margin-left: 0%;box-sizing: border-box;"><section style="display: inline-block;width: auto;vertical-align: top;background-color: rgba(255, 164, 30, 0.1);flex: 100 100 0%;align-self: flex-start;height: auto;margin-right: 12px;margin-left: 4px;box-sizing: border-box;"><section style="text-align: center;font-size: 0px;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 33px;height: 13px;vertical-align: top;overflow: hidden;box-sizing: border-box;line-height: 0;"><br  /></section></section></section></section></section></section></section></section><section style="margin-top: 25px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;vertical-align: top;border-width: 1px;border-radius: 0px;border-style: none none solid solid;border-color: rgb(255, 164, 30);box-sizing: border-box;"><section style="margin-top: -30px;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 100%;vertical-align: top;padding: 15px 20px;box-sizing: border-box;"><section style="font-size: 15px;color: rgb(111, 83, 49);line-height: 2;letter-spacing: 1px;padding-right: 6px;padding-left: 6px;box-sizing: border-box;" powered-by="gulangu"><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;">接科室报修：眼科B超机使用过程中，突然黑屏，闻到有股烧焦的味儿，再开机就没有任何反应。</span></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;">&nbsp;</span></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;">到现场时，还有闻到淡淡的焦糊味儿，在确认了供电和电源线没有问题后，机器还是不能开机，将机器搬回修理间维修。因科室反应机器是在使用</span><span style="font-size: 16px;box-sizing: border-box;text-decoration: none;">过程中</span><span style="font-size: 16px;box-sizing: border-box;">损坏的，并有焦味产生，拆开机器后，先是直观检查，但并没有发现比较明显的烧焦痕迹。因该机器使用的是CRT显像管，又没看到直观烧焦的地方，所以怀疑淡淡的焦味是不是因显像管高压打火产生的，但是只是显像管打火的话，应该是可以开机看到打火现象的，所以决定先不管味儿怎么产生的了，先解决机器开不了机的问题，让机器能通上电来再观察其它情况。</span></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><br  /></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;">拆机检查电源板，测电源板的上保险电阻、开关管、桥堆等易损元件，各元器件均正常；拔下给显像管板子的主供电，接上灯泡作假负载，上电测试电源板，开机后灯泡不亮，但能听到电源板发出轻微的啸叫，证明开关电源是起振了，但是没有电压输出。接的假负载肯定不存在负载损坏保护的问题，那就只能是电源本身存在故障了，于是</span><span style="text-indent: 2em;font-size: 16px;box-sizing: border-box;">重点检查电源的保护电路和输出整流电路。当测量到输出端的一个肖特基二极管两端正反向电阻阻值很小，明显小于正常值，取下该二极管单独测量二极管，单向导电特性完全正常用，再测量电路板上二极管两个焊盘，电</span><span style="text-indent: 2em;font-size: 16px;box-sizing: border-box;">阻</span><span style="text-indent: 2em;font-size: 16px;box-sizing: border-box;">值还是趋于短路，周边</span><span style="text-indent: 2em;font-size: 16px;box-sizing: border-box;">元</span><span style="text-indent: 2em;font-size: 16px;box-sizing: border-box;">件已不多了。仔细查看发现一个贴片电容的颜色明显比正常的要深一些，测量其两端阻值，基本为0，焊下该电容后，电容下边的电路板因电容温度高的原因，线路板已碳化变黑,<span style="color: rgb(111, 83, 49);font-size: 16px;letter-spacing: 1px;text-indent: 32px;">故障点一目了然</span>；再检测该电容，已短路损坏。</span></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;"></span></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><br  /></p><p style="text-indent: 2em;white-space: normal;box-sizing: border-box;"><span style="font-size: 16px;box-sizing: border-box;">清理电路板积炭，更换相同型号的贴片电容，测量电容两端线路无短路情况后，装回取下的肖特基二极管，试机，</span><span style="text-decoration: none;"><span style="text-decoration: none;font-size: 16px;box-sizing: border-box;">假负载灯泡</span></span><span style="font-size: 16px;box-sizing: border-box;">亮</span><span style="font-size: 16px;box-sizing: border-box;">正常，再恢复机器线路，开机显像正常，试机一小时，电容无发热现象，装盖再试机，正常后送回科室。维修完成。</span></p></section></section></section></section></section></section></section></section></section><p><br  /></p><p><br  /></p><section style="box-sizing: border-box;font-size: 16px;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;margin: 10px 0%;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: auto;flex: 0 0 0%;align-self: center;height: auto;box-sizing: border-box;"><section style="text-align: center;box-sizing: border-box;" powered-by="gulangu"><section style="display: inline-block;width: 90px;height: 150px;vertical-align: top;overflow: hidden;border-style: solid;border-width: 4px;border-radius: 0px;border-color: rgb(15, 76, 129);box-sizing: border-box;line-height: 0;"><br  /></section></section></section><section style="display: inline-block;vertical-align: middle;width: auto;flex: 89.2857 89.2857 0%;align-self: center;height: auto;background-color: rgb(255, 255, 255);margin-left: -65px;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;box-sizing: border-box;"><section style="display: inline-block;vertical-align: middle;width: auto;padding-right: 5px;flex: 0 0 0%;height: auto;align-self: center;box-sizing: border-box;"><section style="box-sizing: border-box;" powered-by="gulangu"><section style="display: flex;flex-flow: row nowrap;box-sizing: border-box;"><section style="display: inline-block;width: 120px;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;box-sizing: border-box;"><section style="text-align: center;margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="max-width: 100%;vertical-align: middle;display: inline-block;line-height: 0;width: 100%;border-color: rgba(118, 178, 124, 0);border-width: 5px;border-radius: 0px;border-style: solid;box-shadow: rgb(0, 0, 0) 0px 0px 0px;box-sizing: border-box;"><img data-ratio="1" src="http://mmbiz.qpic.cn/mmbiz_jpg/qO8ibk5yXWXKzIkREakkQgYQgpcoYKt1IGohGK2RvDGgeqhicfwlyUH3xdQwdw4pZmqTB8BRxReiaqJE3voNoL5Vg/640?wx_fmt=jpeg" data-type="jpeg" data-w="258" style="vertical-align: middle;width: 100%;box-sizing: border-box;"  /></section></section></section></section></section></section><section style="display: inline-block;vertical-align: middle;width: auto;padding-left: 5px;flex: 100 100 0%;height: auto;align-self: center;box-sizing: border-box;"><section style="margin-right: 0%;margin-left: 0%;box-sizing: border-box;" powered-by="gulangu"><section style="color: rgb(189, 195, 199);font-size: 15px;box-sizing: border-box;"><p style="color: rgb(68, 68, 68);white-space: normal;letter-spacing: 1px;box-sizing: border-box;">扫码关注，</p><p style="color: rgb(68, 68, 68);white-space: normal;letter-spacing: 1px;box-sizing: border-box;">更多信息在这里<br style="box-sizing: border-box;"  /></p><p style="color: rgb(68, 68, 68);white-space: normal;letter-spacing: 1px;box-sizing: border-box;"><br style="box-sizing: border-box;"  /></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;">南华百川</strong></em></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(241, 73, 56);box-sizing: border-box;">设备搬迁、调试</span></strong></em></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(241, 73, 56);box-sizing: border-box;">定期保养、设备</span></strong></em></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(241, 73, 56);box-sizing: border-box;">租赁全保、技术保服务</span></strong></em></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(241, 73, 56);box-sizing: border-box;">全院设备托管</span></strong></em></span></p><p style="white-space: normal;box-sizing: border-box;"><span style="font-size: 14px;color: rgb(7, 12, 28);box-sizing: border-box;"><em style="box-sizing: border-box;"><strong style="box-sizing: border-box;"><span style="color: rgb(241, 73, 56);box-sizing: border-box;">报修热线：13330074829</span></strong></em></span></p></section></section></section></section></section></section></section></section></section><p><br  /></p>