GE 1.5T HDE MRI DRF2 维修案例

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                    <p style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">故障现象：</strong>机器启动异常操作界面启动超时，无法进入正常操作界面。</p><p style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></p><p></p><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">Error：2223849</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">APS power up boot failed，communication time out from APS board<br  /><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/cxjQ3d8jRDibgVntvWib2Bm9O3ZtnClHibcgQadhzBr8eE1F5adeL2uwGZzh3Xflfjl9Mu6Wx23HsqHxlmiaSUoxiaQ/0?wx_fmt=jpeg" data-ratio="1.3328125" data-w="640"  /><br  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br  /></section><p></p><p style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">Troubleshooting</strong>：</p><p></p><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">1、ERROR 上很明显指出APS 启动失败，APS通信超时。</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">2、<span style="max-width: 100%; font-family: inherit; font-size: 12.25px; line-height: 1.4; text-decoration: inherit; box-sizing: border-box !important; word-wrap: break-word !important;">在C-SHELL命令窗口上PING APS 通信时而失败时而正常，PING SCP 以及AGP均通信正常， 根据报错检查MGD柜上各个电路板指示灯是否正常。</span></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: inherit; font-size: 12.25px; line-height: 1.4; text-decoration: inherit; 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></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">3、检查发现除APS board指示灯异常外且FAIL灯亮，其他电路板指示灯都正常。</section><p></p><p><br  /></p><p style="max-width: 100%; box-sizing: border-box; min-height: 1em; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; word-wrap: break-word !important;">4、怀疑是APS board故障,更换后当天正常，扫描时偶尔出现一两次下载序列较慢情况，考虑是计算机通讯延迟问题并未在意，但第二天故障又重新出现。</p><p></p><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">5、排除APS board问题，将问题锁定在跟APS有关联的AGP 和SCP板上做MGD_TERM测试却发现除了APS有错误外其他个板子均无报错。</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">6、只能进行最小化排查，将MGD除APS，AGP,SCP,bridge Board以及电源模块外其他所有电路板拆除。</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">7、这时候PING APS 、SCP、AGP三块板子通信都正常，怀疑是MGD其他电路板故障引起APS启动失败。</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">8、考虑到更换APS 后正常一段时间内出现两次下载序列较慢情况结合MGD上DRF-2 有这方面的功能，考虑DRF-2有问题，将DRF-2重新插入后故障重新出现，判断DRF-2电路板故障。</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">（注：若没有明显方向可考虑将每个板子逐一或单独插入来判断故障原因。）</section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;"><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /></section><section class="" style="max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51); font-size: 14px; line-height: 19.6px; white-space: normal; word-wrap: break-word !important;">9、更换DRF-2 后设备正常。</section><p></p><p><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/cxjQ3d8jRDibgVntvWib2Bm9O3ZtnClHibcopsB0cpkxFn3UN1c3YYFsVr9RBhiaqzYQf2FYZWUMPO6VU4SPwbOuoQ/0?wx_fmt=jpeg" data-ratio="0.75" data-w="640"  /><br  /></p><p><br  /></p>