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<section class="" label="Copyright ? 2015 Yead All Rights Reserved." style="max-width: 100%; color: rgb(62, 62, 62); white-space: normal; font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section style="margin-top: 10px; margin-bottom: 10px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><section class="" data-ele="imb" style="max-width: 100%; border: 0px none; box-sizing: border-box !important; word-wrap: break-word !important;"><section class="" data-ele="" style="max-width: 100%; border: 0px none; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="margin-right: auto; margin-left: auto; max-width: 100%; clear: both; width: 667px; overflow: hidden; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="margin-top: 0.5em; margin-bottom: 0.5em; padding-right: 3px; padding-left: 3px; max-width: 100%; text-align: center; color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="margin: auto; max-width: 100%; display: inline-block; color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="max-width: 100%; border-top-width: 2px; border-top-style: solid; border-color: rgb(89, 195, 249); border-bottom-width: 2px; border-bottom-style: solid; font-size: 1.2em; font-family: inherit; text-decoration: inherit; color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="padding: 5px 20px; max-width: 100%; display: inline-block; border-color: rgb(89, 195, 249); color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><p style="max-width: 100%; min-height: 1em; color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;">西门子X线电视系统的控制原理与故障维修</p></section></section><section style="margin-top: -4px; max-width: 100%; color: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><section style="margin-left: -3px; max-width: 100%; width: 6px; height: 6px; float: left; border-radius: 100%; color: rgb(255, 255, 254); border-color: rgb(194, 229, 246); box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(89, 195, 249);"></section></section></section></section></section></section></section></section></section><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 21.3333px; 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></p><section class="" label="powered by gulangu" style="max-width: 100%; color: rgb(62, 62, 62); white-space: normal; line-height: 25.6px; font-family: 微软雅黑; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" data-id="85920" style="max-width: 100%; box-sizing: border-box; border: 0px none; word-wrap: break-word !important;"><section class="" style="padding: 0.8em; max-width: 100%; box-sizing: border-box; border-width: 1px 0.4em; border-style: solid; border-color: rgb(89, 195, 249); border-radius: 0.3em; word-wrap: break-word !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 西门子VIDEOMED S是全微机控制的高分辨率的电视系统，整个系统由微处理器和软件控制，调整和控制完全程序化和智能化，广泛应用于西门子各类数字胃肠和DSA血管成像设备。 </p></section><section style="max-width: 100%; box-sizing: border-box; width: 0px; height: 0px; clear: both; word-wrap: break-word !important;"></section></section><p style="max-width: 100%; min-height: 1em; 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;" /></p></section><p></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 21.3333px; 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></p><section class="" label="Copyright ? 2015 Yead All Rights Reserved." style="max-width: 100%; color: rgb(62, 62, 62); white-space: normal; font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><blockquote class="" style="padding: 15px; max-width: 100%; border-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-color: rgb(58, 188, 255); box-sizing: border-box !important; word-wrap: break-word !important;"><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 1、控制原理<br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">VIDE0MED S由两部分组成，分别为CCU单元和摄像机单元。CCU单元有8块插入式组件．按顺序分别为D2变压器组件：D1电源控制板：D11偏转控制板；D8视频模拟放大板；D12摄像机适配器板：D9视频数字放大板：D10程序处理板：D16接口板。摄像机单元有摄像管和线圈调整系统：D10l预视放电路板；D103偏转聚焦控制板；D104偏置光控制板。</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> Camera出来的视频信号流程经DIO1放大后送到D103、D12控制，然后送入D8放大、补偿、调整和分配，最后分路送出．通过D9数字转换控制后送到D16．经适配后最终输出视频数字信号。系统分别由D9、D10、D16板上的3个微处理机控制。D8视频模拟放大板为摄像机B信号处理器，偏置光补偿，根据束电流的大小放大和锁定，AGC／Gamma／手动等功能的控制。D12适配器板为各种工作模式的数码显示，也是维修PC的连接口。D9板上的微处理机是根据D10板发出的信号及各种参数来控制D8板视频放大器的各个时序，进行各参数的补偿、控制和调整，并根据系统的配置来产生仿真表 DIO板上的微处理机控制着整个系统，它监控着系统的初始化、电视系统与外界的通讯、时序控制、束电流的自动调整．偏置光的设置、聚焦、增益和位置补偿、自动检测所供电压、软件的输入、升级及错误信息的记忆。D16板上微处理机是通过KK连接器来接收和发送控制信号，并进行Watchdog和中断响应的初始化．硬件信号的排序， 接收信号的分析，输出信号的发送等，使图像达到最佳的控制和显示</p><p style="max-width: 100%; min-height: 1em; 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;" /></p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2、故障维修</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．1 故障一</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．1．1 故障现象</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 透视时无图像显示。</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．1．2 故障分析与排除 </p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 检查透视X线正常．故障范围缩小至增强器和电视系统，排除增强器后把故障确定在电视系统。首先查看D12板工作状态显示是否正常 D12板为摄像机的控制连接适配器板．各种工作状态均用数字及符号显示在板上，查对结果工作状态显示不正常。然后检查各电路板的有无指示灯显示异常。检查结果D1板V406、V410绿色指示灯不亮。Dl为电源控制板，它提供了整个电视系统所需的各种工作电源。进一步检查发现D9、D10板上的V601和V105红色故障指示灯分别被点亮，显示提供的工作电源错误，D11板的V215和V216红色故障指示灯交替闪亮，显示行场扫描系统故障。外接PC至CCU的D12板X100的RS232接口上．用维修软件检查，发现D1板提供的l2组电源中有6组接近0 V，还有4组电源偏离正常值，导致其他板控制异常，Dl板损坏确定无疑。由于电路板为多层板，无法进一步修理，订货更换新板后开机自检通过，测试所有电源均在正常范围内，故障排除。</p><p style="max-width: 100%; min-height: 1em; 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;" /></p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．2 故障二</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．2．1 故障现象</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 透视时图像中心区亮斑，有明显的水渍现象，数字点片正常 </p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 2．2．2 故障分析与排除 </p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;"> 判断摄像管有轻度老化现象。考虑需重新调整透视模式下的摄像管参数．外接PC 至CCU 的D12板X100 的RS232接口上．用VA02维修软件进入系统配置，选择调试程序，进入选项，单选Beam 调整项． 其默认的透视方式Beam增益为3 dB．最大束电流为1750nA，其他的曝光扫描方式也采用默认值，确认后自动调整开始．调整结束后显示失败，提示摄像管老化。 进入Beam参数设置选项界面．将Beam的透视增益改为6dB，最大透视束电流为1300 nA．其他不变，确认后自动调整开始，电脑将根据设置的增益和摄像管的状态选择最佳的束电流．结果调整成功通过，保存退出后试机，透视水渍消失，透视时移动厚薄不同部位亮度自动跟踪正常，亮度显示均匀。</p></blockquote></section><p></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 21.3333px; 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></p><section class="" label="Copyright ? 2015 Yead All Rights Reserved." style="max-width: 100%; color: rgb(62, 62, 62); white-space: normal; font-family: 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif; line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><section class="" style="margin-top: 25px; max-width: 100%; box-sizing: border-box; text-align: inherit; border: 1px solid rgb(58, 188, 255); font-family: inherit; font-weight: inherit; text-decoration: inherit; color: rgb(51, 51, 51); word-wrap: break-word !important;"><section class="" style="margin-top: -14px; margin-right: 16px; margin-left: 16px; max-width: 100%; box-sizing: border-box; border-style: none; border-top-color: rgb(58, 188, 255); line-height: 1.4; word-wrap: break-word !important;"><span class="" style="padding: 3px 8px; max-width: 100%; box-sizing: border-box; display: inline-block; color: rgb(255, 255, 255); font-size: 1em; text-align: center; font-family: inherit; font-weight: inherit; text-decoration: inherit; border-color: rgb(58, 188, 255); word-wrap: break-word !important; background-color: rgb(58, 188, 255);"><section class="" style="max-width: 100%; box-sizing: border-box; border-top-color: rgb(58, 188, 255); word-wrap: break-word !important;">讨论</section></span></section><section class="" style="padding: 16px; max-width: 100%; box-sizing: border-box; font-size: 1em; line-height: 1.4; font-family: inherit; border-top-color: rgb(58, 188, 255); word-wrap: break-word !important;"><section class="" style="max-width: 100%; box-sizing: border-box; border-top-color: rgb(58, 188, 255); word-wrap: break-word !important;"> 由于VIDE0MED S在电路中抛弃了传统的电位器调整。采用电脑控制和软件自动调整。给传统的维修和调试带来了一定的难度，但在维修中可通过软件读出错误信息，使我们缩小了查找范围．在提示的可疑部位可查看故障灯的显示．可以较快地找到故障所在．使得维修变得简单和智能化，所以在维修中厂方的技术支持是必不可少的，由于厂方提供了VIDEOMDE S电视系统随机的相关软件，其中包括系统软件，系统配置和电视摄像管参数的备份。供用户调试和维修使用，所以给电视系统的调试维修带来了极大的方便。</section></section><section style="max-width: 100%; width: 0px; height: 0px; clear: both; box-sizing: border-box !important; word-wrap: break-word !important;"></section></section></section><p></p><p><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 25.6px; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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 邮编：510507</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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 传真：020-8722 8623</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><img data-ratio="1" data-type="jpeg" data-w="120" width="auto" src="http://mmbiz.qpic.cn/mmbiz/dx3KibwtDhvfCZvZq5PcthnDKlnnq3AalhbichW77J3B70osicTickklZybNKUZqc44DZ0oaWaHm2p0TaA9478icwPg/640?wx_fmt=jpeg" style="box-sizing: border-box !important; word-wrap: break-word !important; width: auto !important; visibility: visible !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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;">交流Q群：1106 11074</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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;">网址：http://www.yiliaoshebeiweixiu.com</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 12px; line-height: 24px; font-family: Arial, Verdana, sans-serif; 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 style="line-height: 21.3333px;"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;"><br /></span></p><p><br /></p>
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发表于 2020-10-19 23:51:37