Discuz! Board

 找回密码
 立即注册
搜索
热搜: 活动 交友 discuz
查看: 7|回复: 0

西门子X线电视系统的控制原理与故障维修

[复制链接]

1万

主题

1万

帖子

5万

积分

管理员

Rank: 9Rank: 9Rank: 9

积分
58026
发表于 2020-10-19 23:51:37 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <section class="" label="Copyright ? 2015 Yead All Rights Reserved." style="max-width: 100%; color: rgb(62, 62, 62); white-space: normal; font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, 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;">&nbsp; &nbsp; &nbsp; 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。&nbsp;</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: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, 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;">&nbsp; &nbsp; &nbsp; 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;">&nbsp; &nbsp; &nbsp; 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;">&nbsp; &nbsp; &nbsp; 2、故障维修</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; 2.1 故障一</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; 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;">&nbsp; &nbsp; &nbsp; 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;">&nbsp; &nbsp; &nbsp; 2.1.2 故障分析与排除 &nbsp;</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; 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;">&nbsp; &nbsp; &nbsp;2.2 故障二</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp;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;">&nbsp; &nbsp; &nbsp;透视时图像中心区亮斑,有明显的水渍现象,数字点片正常 &nbsp;</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp;2.2.2 故障分析与排除 &nbsp;</p><p style="max-width: 100%; min-height: 1em; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp;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。 &nbsp;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: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, 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;">&nbsp; &nbsp; &nbsp; 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 &nbsp; &nbsp; &nbsp; 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 &nbsp; &nbsp;8764 5360 &nbsp; &nbsp;8764 2943 &nbsp; &nbsp; 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: &nbsp;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: &nbsp; QQ: &nbsp;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: &nbsp; 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>
               
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

Archiver|手机版|小黑屋|Comsenz Inc. ( 浙ICP备17000336号-1 )

GMT+8, 2025-3-15 23:24 , Processed in 0.089155 second(s), 33 queries .

Powered by Discuz! X3.4

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表