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超声设备的安装与故障诊断

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发表于 2020-10-19 23:47:48 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <section class="" data-style="margin-top: 15px; margin-bottom: 0px; padding: 0px; color: rgb(107, 77, 64); line-height: 2em; font-size: 20px; border-color: rgb(107, 77, 64);font-size: 18px;font-weight:bold;" style="max-width: 100%; box-sizing: border-box; color: rgb(62, 62, 62); line-height: 21.3333px; white-space: normal; word-wrap: break-word !important;"><p style="margin-top: 15px; max-width: 100%; min-height: 1em; white-space: normal; color: rgb(226, 86, 27); border-color: rgb(226, 86, 27); line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 18px; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">超声设备安装与故障诊断</strong></span></p></section><p style="margin-top: -10px; max-width: 100%; min-height: 1.5em; white-space: normal; color: inherit; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-size: 12px; box-sizing: border-box !important; word-wrap: break-word !important;"><strong class="" data-brushtype="text" style="padding-right: 15px; padding-left: 15px; max-width: 100%; border-bottom-left-radius: 20px; border-bottom-right-radius: 20px; color: rgb(255, 255, 255); font-size: 13px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(226, 86, 27);">duersi</strong></span></p><p></p><section class="" data-style="margin-top: 0px; margin-bottom: 0px; padding: 0px; line-height: 2em; font-size: 14px; min-height: 1.5em; color: inherit;" style="max-width: 100%; box-sizing: border-box; color: rgb(62, 62, 62); line-height: 21.3333px; white-space: normal; word-wrap: break-word !important;"><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(226, 86, 27); box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</strong></span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(226, 86, 27); box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp;<span style="max-width: 100%; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp;B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机器的安装</span></span></strong></span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(一)机房的环境要求</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机房要选择周围环境整洁干净的地方,要远离动力用电设备,如锅炉房、大型</span>X<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">线设备等。在一般情况下,与功能检查科设备安装在一起,这样方便于患者检查。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(二)机房要求</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机房应设缓冲间,里面一房间为机房,外面一房间为工作室,并装有适当的按机房使用面积及机器和工作人员足够冷、热量的空调机组,以保证机房的温度和湿度。在一般情况下,</span>B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机房温度控制在</span>25<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">℃左右;湿度控制在(</span>50<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">~</span>60<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)%。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(三)电源及地线要求</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机器用电必须安装有净化稳压电源,最好不用其他形式的稳压电源。要按照</span>B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机器的所需功率有余量的配备。在一般情况下,可按照所用机器的功率再加一倍的功率选择配备净化稳压电源。同时,还要有保护接地线,要求保护接地线接地电阻不大于</span>2?<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">。无保护接地线的机房,必须制作专门的接地线,以确保漏电的安全问题。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(四)</span>B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机器的调试</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">当机器就位后,首先检查测量净化稳压电源的电压是否准确正常,其次要检查机器有无因运输过程中所造成的接插件电路板的松动、移位或损坏;检查监视器有无异常损坏,以上这些检查是必须的。但这些检查没有发现问题时,可加电观察机器的初始工作状态:调整监视器亮度和对比度,然后,逐级测试机器所具备的各项功能及显示。对新的机器是不需要任何调整即可工作;对已用过的机器重新安装时,需要做一些必要的检查,如探头的工作情况,可用基本测试方法检查探头有否异常,有条件时,可用测试模块来检查一下整机的灵敏度、信号增益、噪声、线性等。</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="line-height: 2em; text-align: center; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;"><br  /></span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="line-height: 2em; text-align: center; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">B 超机各部分电路板检查</span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;">B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机各部分电路板检查</span>:<br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;1.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">首先要仔细观察电路板上的各种元器件有无异常,如烧坏、断裂、变形等。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;2.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">观察电路板上所有的焊点情况,有无开焊、断裂、印刷线路烧断、腐蚀或受潮现象。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;3.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">检查电缆线及连接插头插座,是否有断路、短路现象,接触是否良好。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;4.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">当上述这些方面全部检查后,再去根据故障现象判断和查找相应的电路部分。</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="line-height: 2em; text-align: center; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;"><br  /></span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="line-height: 2em; text-align: center; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">B 超机对元器件的要求</span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;">B&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超机对元器件的要求</span>:<br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;1.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">所更换的元器件必须符合机器要求的规格型号。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;2.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">换上去的器件要确保质量,并要求性能稳定、可靠,最好经过筛选。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;3.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">在更换元器件焊接线路板时,要特别注意温度,做到既能焊下元器件又不能把线路板烫坏,在焊锡没有完全熔化时不能硬拔元器件,以免拔坏线路板。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;4.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">新的元器件其规格型号符合要求了,还要注意体积的大小,是否有足够的空间。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;5.<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">对代用的器件,一定要弄清该器件的作用,要掌握硬件知识,代用起来会更方便。</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; text-align: center; line-height: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp;&nbsp;</span></span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; text-align: center; line-height: inherit; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-weight: bold; font-family: 宋体; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">B超故障实例一</span></span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障现象:屏幕上无光栅、无图像</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障原因:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>1<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)</span>±5V<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">、</span>±12V&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">电源故障;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>2<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)全电视信号故障;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>3<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)监视器故障。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障排除:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>1<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)检查电源相应的电压值,测量</span>±5V<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">、</span>±12V&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">确认电源电压是否正常。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>2<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)查找全电视信号,最好的办法是另外找一台监视器,用视频电缆连接起来,看是否有全电视信号,如果有全电视信号,而且超声图像正常,则说明是监视器故障;如果还是什么都没有,就应该往前查找视频输出部分。</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(226, 86, 27); box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">B<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超故障检修二</span></span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障现象:屏幕上有光栅,但无图像、无灰阶、无刻度</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障原因:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>1<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)系统时钟停止;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>2<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)</span>ADC&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">电路故障;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>3<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)监视器故障。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障排除:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>1<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)此种故障现象可以判定监视器行场扫描是正常的,无图像要首先检查视频部分,如果检查监视器本身没有问题,就要检查视频输出是否正常。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>2<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)测量系统时钟电路中</span>IC1G-10<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">、</span>J203-1&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">测量点波形。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>3<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)查找</span>ADC&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">电路。</span></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><strong style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; color: rgb(0, 32, 96); box-sizing: border-box !important; word-wrap: break-word !important;">B<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">超故障检修三</span></span></strong></p><p style="max-width: 100%; min-height: 1em; white-space: normal; line-height: 2em; box-sizing: border-box !important; word-wrap: break-word !important;"><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障现象:图像异常扭曲或滚动</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  /><span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障原因:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>1<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)系统时钟不稳;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>2<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)全电视信号电平过高或过低;</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">(</span>3<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">)</span>TV&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">信号故障。</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">故障排除:</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;"  />&nbsp; &nbsp;&nbsp;<span style="max-width: 100%; font-family: 宋体; box-sizing: border-box !important; word-wrap: break-word !important;">造成图像异常扭动或滚动主要是两个问题:一个是由于系统时钟部分问题造成的,一个是全电视信号电平造成。遇到这种两种情况时,还是先查找全电视信号是否正常,用示波器测全电视信号,看有无异常,尤其是电平的高低,然后再找系统时钟问题,应该说故障比较局限。</span></p></section><p></p><p><br  /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); line-height: 1.75em; 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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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; 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);"><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><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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