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高压板坏后的几种常见故障处理

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发表于 2020-10-19 23:02:51 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="font-size: 18px;"><strong><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><img class="__bg_gif" data-ratio="0.10555555555555556" src="http://mmbiz.qpic.cn/mmbiz/M2H0aGBjWUTRia7nqkArYeKZUqEfdmpNibMPiaZk4gvlWk5v5lUKyXhjJP4CENKQeQt5HI8zwcTCWJOkicfWJiatdJQ/0?wx_fmt=gif" data-type="gif" data-w="720" width="auto" style="font-size: 16px;line-height: 25.6px;white-space: normal;font-family: Arial, Verdana, Helvetica, sans-serif, 宋体;color: rgb(63, 63, 63);text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;"  /></span></strong></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);"><br  /></span></strong></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">1、瞬间亮后马上黑屏</span></strong></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">该问题主要为高压板反馈电路起作用导致,如:高压过高导致保护、反馈电路出现问题导致无反馈电压、反馈电流过大、灯管PIN松脱、IC输出过高等等都会导致该问题,原则上只要IC有输出、自激振荡正常,其它的任何零件不良均会导致该问题,该现象是液晶显示器升压板不良的最常见之现象。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;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: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">维修时最主要的方法是:</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><em style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 19px;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;">(1)</strong></span></em><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">短接法</span></strong><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">----一般情况下,脉宽调制IC中有一脚是控制或强制输出的,对地短路该脚则其将不受反馈电路的影响,强制输出脉冲波,此时升压板一般均能点亮,并进行电路测试,但要注意:因此时具体故障点位还未找到,因此短路过久可能会导致一些异常不到的现象,如:高压线路接触不良时,强制输出可能会导致线路打火而烧板!!!</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><em style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 20px;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;">(2)</strong></span></em><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">对比测试法</span></strong><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">:因液晶显示器灯管采用均为2个以上,多数厂家在设计时左右灯管均采用双路输出,即两个灯管对应相同的两个电路,此时,两个电路就可以采用对比测试法,以判定故障点位!当然,有的机子用一路控制两个灯管时,此法就无效!</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;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: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">另一方面,在不明情况下,最好不要乱短路IC各脚,否则可能会出现异想不到的后果!</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-size: 16px;white-space: normal;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;text-align: center;background-color: rgb(255, 255, 255);"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="font-size: 18px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">2、通电灯亮但无显示</span></strong></span></p><p><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);">此问题主要为升压板线路不产生高压导致,如:12V未加入或电压不正常、控制电压未加入、接地不正常、IC无振荡/无输出、自激振荡电路产生不良等均会出现该现象!</span></p><p style="text-align: center;"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="font-size: 18px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">3、三无</span></strong></span></p><p><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);">若因升压板导致该问题,则多数均为升压板短路导致,一般很容易测到,如:12V对地、自激管击穿、IC击穿等均会导致,另外:[size=+0]电源部份或升压板线路同做一块板(即连在一起)的机子,则[size=+0]电源无输出或不正常等亦会产生,维修时可以先切断升压部份供电,确认是哪一方面的问题</span></p><p style="text-align: center;"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="font-size: 18px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">4、亮度便暗</span></strong></span></p><p><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);"><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);">升压板上的亮度控制线路不正常、12V偏低、IC输出偏低、高压电路不正常等均会导致该问题,部份可能伴随着加热几十秒后保护,产生无显示!</span></span></p><p style="text-align: center;"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="font-size: 18px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">5、【size=+0】电源指示灯闪</span></strong></span></p><p><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);"><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;text-align: justify;background-color: rgb(255, 255, 255);"><span style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 15px;line-height: 28px;background-color: rgb(255, 255, 255);">该问题同三无现象差不多,多数为管子击穿导致!</span></span></span></p><p style="text-align: center;"><span style="font-size: 18px;background-color: rgb(255, 218, 169);"><strong><span style="font-size: 18px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 218, 169);">6、干扰</span></strong></span></p><p><br  /></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">主要有水波纹干扰、画面抖动/跳动、星点闪烁(该现象少数,多数均为液晶屏问题)等,主要是高压线路的问题。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">以上几点是升压板产生问题的最主要现象,对于高压板产生的不良,各位不防把它这样比作:灯管相当于我们的日光管(当然,其电压要比日光灯高得多,其粗的一根高压线接的是高压输入、细的一根低压线接的是输出反馈端)、线路板把它看作逆变器线路,围绕着该状况去修,可能会容易一点。另外:[size=+0]电源与升压连为一体的板子,要判定是[size=+0]电源问题还是升压部份问题,可切断升压线路的供电线路,再测试[size=+0]电源输出的12V或5V等是否正常,以此来判定问题出在哪部份,但值得注意的是:切断时要看仔细,勿直接切断12V或5V整流线路,那样可能导致[size=+0]电源无反馈电压而升过高,导致爆炸等问题(该状况类似直接切断CRT显示器的行管C极及输出反馈电路)。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">以上,希望能给大家一点帮助,同时也希望大家秉着一颗无私之心将你们的一些技术经验交流出来与大家分享,以相互提升技术水平!</span></p><p><br  /></p><p style="text-align: center;"><span style="text-align: justify;background-color: rgb(255, 255, 255);"><span style="text-align: justify;background-color: rgb(255, 255, 255);"><img class="" data-ratio="0.27906976744186046" src="http://mmbiz.qpic.cn/mmbiz_png/qbiclCHl7mOG72UTb2U5Zv7H2q7kbAXd6NXorkVYa28nRRmNfCQYvBf3M7ib0offmL7Su3Psav3q9ibQTD0EPfy4A/640?wx_fmt=png" data-type="png" data-w="387" style="color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;text-align: center;white-space: normal;display: inline;box-sizing: border-box !important;word-wrap: break-word !important;width: 210px !important;visibility: visible !important;background-color: rgb(255, 255, 255);" title="树自行车分割线" width="210px"  /></span></span><br  /></p><p style="text-align: start;"><span style="text-align: justify;background-color: rgb(255, 255, 255);"><span style="text-align: justify;background-color: rgb(255, 255, 255);"></span></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">让我来告诉你们高压板电路原理吧:一台完整的液晶一般由液晶屏、主板、按键板以及高压板组成(又称升压板),另外,在一些特殊的液晶彩显中还带有音频板以及USB插口板等。而楼上的各位图片提供的高压板均为独立型的高压板,即:需要由一个12V[size=+0]电源的[size=+0]电源盒来提供,另有部份机子主[size=+0]电源与升压板是连在一起的。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">先来讲讲液晶屏的构造再讲升压板原理或许各位会听得更明白些。目前,市场上液晶屏主要有三星、中华、奇美等等,而追其构造,均由液晶粒子屏、玻璃、信号处理板及灯管等组成!一方面,主板上提供的信号经信号处理板解码后送到液晶粒子屏,推动液晶粒子翻转,这时是看不到亮画面的,因方没有背灯管(即贴在液晶左右背处,即上面说的灯管)的照射光,只有背景一点黑暗的图象。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">另一方面,主板产生信号后,紧接着升压板也开始工作,推动灯管发光,并在背灯管的照射下,液晶显示器才能显示完整的图象。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">在了解以上的大概状况后,我们不难理解:升压板的作用就是点亮灯管!!!的确是这样,升压板的作用就是推动灯管发光,以产生背景照亮灯。但是,话又说回来,灯管如同日光管一样,其内部充满了氖气,要想让它发光,必须在其未点亮前产生1500V的高压来击发内部的气体,一旦气体导通后,则必须要有600~800V电压、9MA左右的电流供其发光,这就使得普通的12V或者市电的220V电压跟本达不到其要求,因此必须升压。而此时,所有发光的条件都满足了,背灯管当然就发光了。是这样的,这时背灯管是发光了,而且如果给主板加信号的话,画面就出来了,没错一切似乎都正常。但是,大家要明白,多数的液晶显示器是由直流电压控制开关的(即开关只控制主板信号,不能关掉12V),这时,如果关机会出现什么现象????大家想想,主板至液晶屏控制信号是切断了,但升压板呢,背灯管没关掉呀,没关掉当然就一直亮着,亮着当然在关机时就出现全白的显示(呵呵,这样不仅浪费电,而且很难看呀),为此必须从主板中引出一路控制升压板上脉宽IC供电电压,即控制电压(根据机型及厂家设计状况,由高低两种电压控制,一般均为3.3或5V控制),只有有了控制电压,才能保证升压板上的供电随着开关机器而通断(另有一部份机子是控制IC振荡等)。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">这样了以后,基本保证了升压板的正常工作及画面的正常显示,即上说的三个条件:1、12V供电线 2、接地线 3、控制信号线 各位记住,这三根线的任何一根没接入必导致灯管不亮,即没显示。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;line-height: 1.75em;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">而大家要知道,我们每一台的液晶显示器是都带亮度控制的,要想使得背灯管能够随着亮度的控制而变,必须引入亮度制线,其由主板的CPU或苡片(主IC,脚最多的那个)输出,一般由0~5V或5~0V间变化。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;line-height: 25.6px;white-space: normal;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 style="max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: &#39;Hiragino Sans GB&#39;, &#39;Microsoft YaHei&#39;, Arial, sans-serif;font-size: 16px;white-space: normal;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: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">故此,要使一台液晶的完全能正常控制显示,除主板要正常外,升压板要具备。</span></p><p><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><br  /></span></p><p><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><br  /></span></p><p><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"></span></p><p style="font-size: 16px;line-height: 25.6px;white-space: normal;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;letter-spacing: 0.5px;line-height: 28px;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;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;"><strong style="max-width: 100%;color: rgb(95, 73, 122);font-size: 14px;line-height: 24.381px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(112, 48, 160);font-size: 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!important;"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;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;"><strong style="max-width: 100%;color: rgb(95, 73, 122);font-size: 14px;line-height: 24.381px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 18px;color: rgb(62, 62, 62);line-height: 25px;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;"><strong style="max-width: 100%;white-space: normal;font-family: 微软雅黑;color: rgb(171, 25, 66);box-sizing: border-box !important;word-wrap: break-word !important;"></strong></span></strong></strong></strong></span></strong><br  /></p><p style="font-size: 16px;line-height: 25.6px;white-space: normal;max-width: 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!important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 14px;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;">邮编:510507</span></p><p style="text-indent: 0em;white-space: normal;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;</span></p><p style="text-indent: 0em;white-space: normal;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;">传真:020-8722 8623</span></p><p style="text-indent: 0em;white-space: normal;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="text-indent: 0em;white-space: normal;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: 16px;line-height: 24.381px;box-sizing: border-box !important;word-wrap: break-word !important;">公司官网:http://gb.parts-ultrasound.com/</span><span style="max-width: 100%;font-size: 14px;box-sizing: border-box !important;word-wrap: break-word !important;"></span></p><p style="font-size: 16px;white-space: normal;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: 微软雅黑;line-height: 24.381px;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;line-height: 1.75em;text-indent: 0em;font-size: 14px;font-family: Arial, Verdana, sans-serif;box-sizing: border-box !important;word-wrap: break-word !important;">微信公众帐号:</span></p><p style="font-size: 16px;line-height: 25.6px;white-space: normal;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><img class="" data-ratio="1" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvfh2wVX4NftfnfjcZWIKK6EQDWtTTsYwjfQBnsqkThAZP5OlDmg5S3g22gSqMWhAxr2O4MydSJHnQ/640?wx_fmt=jpeg" data-type="jpeg" data-w="258" width="auto" style="float: left;box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;"  /></p><p style="text-indent: 0em;white-space: normal;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><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="text-indent: 0em;white-space: normal;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="font-size: 16px;white-space: normal;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);font-family: 微软雅黑;line-height: 24.381px;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><span style="max-width: 100%;font-size: 14px;font-family: Arial, Verdana, sans-serif;line-height: 1.75em;text-indent: 0em;box-sizing: border-box !important;word-wrap: break-word !important;">软件咨询:QQ: 712638 406</span><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"  /></p><p style="text-indent: 0em;white-space: normal;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="text-indent: 0em;white-space: normal;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="text-indent: 0em;white-space: normal;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;"><span style="max-width: 100%;">阿里店铺网址:</span><span style="max-width: 100%;">https://renchengyiliao.1688.com</span></span></p><p style="text-indent: 0em;white-space: normal;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: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><br  /></span><br  /></p><p style="text-align: start;"><span style="text-align: justify;background-color: rgb(255, 255, 255);"><span style="text-align: justify;background-color: rgb(255, 255, 255);"><br  /></span></span><br  /></p>
               
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