<?xml version="1.0" encoding="gb2312"?>
<rss version="2.0"><channel><title>湖南电子科技网社区--三洋电视机维修最新20篇论坛主题-全文</title><link>http://www.hnwei.com/bbs</link><language>zh-cn</language><description>湖南电子科技网社区</description><copyright>http://www.hnwei.com</copyright><generator>Rss Generator By Dvbbs.Net</generator><webMaster>mltcl168@126.com</webMaster><item><title>lcd-37cn6黑屏（死机）是什么问题？</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28434&amp;Page=1</link><author>zanger</author><pubDate>2010-4-29 21:12:44</pubDate><description><![CDATA[<p>我家的lcd-37cn6三洋液晶电视（华强版的，不过是在中山生产的）用了刚刚三年，出现黑屏现象，具体就是看着突然黑屏，黑屏后遥控不起作用了。然后必须关闭电源，重新打开电源才能用遥控开，但开了一会又黑屏，如果等上一个小时做右在开，开机的持续时间又会长一些。请问是什么问题？那个部件出了问题。</p>]]></description></item><item><title>三洋21F5.pdf</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28383&amp;Page=1</link><author>志刚家电</author><pubDate>2010-3-25 10:27:50</pubDate><description><![CDATA[<table border=0 cellspacing=2 class=tableborder4 style=width:550px;><tr><td colspan=2 height=20 class=tablebody2>&nbsp;<B>下载信息 </B>(此附件只允许IE下载) 下载本文件需要扣除您&nbsp;2&nbsp;个点数。 </td></tr><tr><td colspan=2 height=20 class=tablebody1><IMG border=0 src="skins/default/filetype/pdf.gif" alt="论坛附件"><A href="viewFile.asp?BoardID=49&ID=13017" onClick="return confirm('下载本文件需要扣除您&nbsp;2&nbsp;个点数。\n&nbsp;确定下载还是取消下载');" target=_blank>21F5.pdf</A>&nbsp; &nbsp;<B>348.52</b> KB，已被下载 <FONT color=red><b>0</b></FONT>&nbsp;次&nbsp;</TD></TR></TABLE><BR>]]></description></item><item><title>C29PK81 C29PK86 C29ZK81 C29ZK86 AA1-A.pdf</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28382&amp;Page=1</link><author>志刚家电</author><pubDate>2010-3-25 10:19:52</pubDate><description><![CDATA[<font color="#ff3300" size="4"><table border=0 cellspacing=2 class=tableborder4 style=width:550px;><tr><td colspan=2 height=20 class=tablebody2>&nbsp;<B>下载信息 </B>(此附件只允许IE下载) 下载本文件需要扣除您&nbsp;2&nbsp;个点数。 </td></tr><tr><td colspan=2 height=20 class=tablebody1><IMG border=0 src="skins/default/filetype/pdf.gif" alt="论坛附件"><A href="viewFile.asp?BoardID=49&ID=13015" onClick="return confirm('下载本文件需要扣除您&nbsp;2&nbsp;个点数。\n&nbsp;确定下载还是取消下载');" target=_blank>C29PK81 C29PK86 C29ZK81 C29ZK86 AA1-A.pdf</A>&nbsp; &nbsp;<B>672.64</b> KB，已被下载 <FONT color=red><b>0</b></FONT>&nbsp;次&nbsp;</TD></TR></TABLE><BR></font>]]></description></item><item><title>三洋FC4A机芯CK21f90，CK21f50，CK15f50，CK25d58，CK25d88，CK25f50，CK25f90，CK25f78（LA76818）.pdf</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28381&amp;Page=1</link><author>志刚家电</author><pubDate>2010-3-25 10:13:37</pubDate><description><![CDATA[<table border=0 cellspacing=2 class=tableborder4 style=width:550px;><tr><td colspan=2 height=20 class=tablebody2>&nbsp;<B>下载信息 </B>(此附件只允许IE下载) 下载本文件需要扣除您&nbsp;2&nbsp;个点数。 </td></tr><tr><td colspan=2 height=20 class=tablebody1><IMG border=0 src="skins/default/filetype/pdf.gif" alt="论坛附件"><A href="viewFile.asp?BoardID=49&ID=13013" onClick="return confirm('下载本文件需要扣除您&nbsp;2&nbsp;个点数。\n&nbsp;确定下载还是取消下载');" target=_blank>三洋FC4A机芯CK21f90，CK21f50，CK15f50，CK25d58，CK25d88，CK25f50，CK25f90，CK25f78（LA76818）.pdf</A>&nbsp; &nbsp;<B>344.67</b> KB，已被<select size=1><option value=0>以下用户</option><option value=0>b527987062</option></select>下载 <FONT color=red><b>2</b></FONT>&nbsp;次&nbsp;</TD></TR></TABLE><BR>]]></description></item><item><title>急求CK21D200图纸</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28169&amp;Page=1</link><author>雄鹰918</author><pubDate>2009-9-19 22:33:11</pubDate><description><![CDATA[<p>同志们帮帮忙</p><p>此电视有图象无声音，接DVD 正常</p><p>无图纸不知道信号流程</p><p>用户说是雷击的</p>]]></description></item><item><title>[求助]三洋彩电CK21D50被雷击机维修</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28132&amp;Page=1</link><author>王东海</author><pubDate>2009-9-7 20:05:27</pubDate><description><![CDATA[<p><font color="#0909f7" size="3">本人自用的一台三洋彩电CK21D50在上周六中午被雷击（被雷击时墙上电源插座的开关是关着的，但是电视的按钮开关没关），晚上打开电视时听到轻微的爆炸声，连可爱雪花点都看不到了，电源损坏了！</font></p><p><br/><font color="#0909f7" size="3">经检查烧坏/击穿以下管子，但是保险没坏，也没发现其他原件损坏：<br/>Q613&nbsp; 场效应管 K2647&nbsp; (2SK2647-01MR)<br/>Q611&nbsp; 三极管&nbsp;&nbsp;&nbsp; 2SC2274<br/>Q614&nbsp; 三极管&nbsp;&nbsp;&nbsp; 2SA984<br/>行管&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; T2140<br/>R612&nbsp; 电阻 10欧<br/>R613&nbsp; 电阻 2.2欧<br/>R617&nbsp; 电阻 2.7K欧</font></p><p><br/><font color="#0909f7" size="3">昨天去电子原件市场买回了上述管子换上，打开电源，满怀希望化为泡影！<br/>在一声轻微的爆炸声后，冒出一缕轻烟，除上述新换的两个三极管和原来的保险外，其他新换上的原件再次烧毁。</font></p><p><br/><font color="#0909f7" size="3">本人是名机械工程师，课本上学过一点电子技术，就纳闷了：怎么这个保险就不保险了！在此之前这电视没坏过、也没修过，也没换过保险。</font></p><p><br/><font color="#0909f7" size="3">在此向各位专家请教，请有过此型号(CK21D50)电视、特别是雷击机维修经验的高手，指点问题出在哪里？</font></p><p><font color="#0909f7" size="3"></font></p><p><font color="#0909f7"><font size="3">在此先谢谢了！</font>&nbsp; </font></p>]]></description></item><item><title>[求助]三洋CK25G5-01的电脑数据</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=28131&amp;Page=1</link><author>zenqinhon</author><pubDate>2009-9-7 15:09:05</pubDate><description><![CDATA[<img title="湖南家电维修网论坛" src="http://www.hnwei.com/bbs/Skins/Default/emot/em07.gif" border="0" align="middle" onload="imgresize(this);" style="cursor: pointer;" alt="图片点击可在新窗口打开查看" onclick="javascript:window.open(this.src);"/>]]></description></item><item><title>[求助]CK21D100电源里的R617的阻值是多少吗</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=27837&amp;Page=1</link><author>望海人</author><pubDate>2009-5-12 23:26:37</pubDate><description><![CDATA[CK21D100电源里的R617的阻值是多少吗]]></description></item><item><title>[求助]求三洋ＣＫ２１Ｊ１图纸</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=27797&amp;Page=1</link><author>peng010</author><pubDate>2009-4-26 12:11:39</pubDate><description><![CDATA[求三洋ＣＫ２１Ｊ１图纸，哪位大师有的话请发给我，不胜感激，在此先谢谢了．邮箱：<a href="mailto:peng010@126.com" target="_blank">peng010@126.com</a>]]></description></item><item><title>ckm2189伴音时有时无</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26499&amp;Page=1</link><author>侯新强</author><pubDate>2009-2-20 17:34:47</pubDate><description><![CDATA[ckm2189伴音时有时无]]></description></item><item><title>ckm2189伴音时有时无</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26498&amp;Page=1</link><author>侯新强</author><pubDate>2009-2-20 16:07:30</pubDate><description><![CDATA[ckm2189伴音时有时无]]></description></item><item><title>[求助]急需华强彩电HPC3898PN电路图</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26490&amp;Page=1</link><author>zhu588</author><pubDate>2009-2-15 22:30:37</pubDate><description><![CDATA[<div class="t_msgfont" id="postmessage_1130862"><font style="FONT-SIZE: 9pt;"><font face="Verdana ">急需华强彩电HPC3898PN<span class="t_tag" href="tag.php?name=%B5%E7%C2%B7%CD%BC">电路图</span>，这<span class="t_tag" href="tag.php?name=%B2%CA%B5%E7">彩电</span><span class="t_tag" href="tag.php?name=%B5%E7%D4%B4">电源</span>管击穿。换C4706又击穿，这机子已转过好几个<span class="t_tag" href="tag.php?name=%CE%AC%D0%DE">维修</span>部到我这的，我不知原电源管<span class="t_tag" href="tag.php?name=%D0%CD%BA%C5">型号</span>，这电源电路比较复杂，没电路路真的不行啊，请各位大大帮个忙发一份。也可发到我的邮箱<a href="mailto:zhuxj588@163.com">zhuxj588@163.com</a>,先在这谢谢了！！</font><p>		</font></div></p>]]></description></item><item><title>谁有华强HPC3898电路图</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26483&amp;Page=1</link><author>zhu588</author><pubDate>2009-2-9 16:19:08</pubDate><description><![CDATA[急需，请有的发一份，没全的，就电源部分的也行。]]></description></item><item><title>[求助]三洋CK21D5总线下怎么调场幅</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26322&amp;Page=1</link><author>zhfyx</author><pubDate>2008-12-8 13:38:42</pubDate><description><![CDATA[一台三洋CK21D5彩电上下收窄三分二，查场输出周围元件无问题，请指教]]></description></item><item><title>专业经销三洋各类高压包</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26177&amp;Page=1</link><author>gaodianyi</author><pubDate>2008-11-13 19:02:01</pubDate><description><![CDATA[专业经销三洋电视机各种高压包QQ411302113电话：15905420380]]></description></item><item><title>求助!关于三洋CK21D5-03黑屏问题!</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26070&amp;Page=1</link><author>whpjack</author><pubDate>2008-10-13 14:50:24</pubDate><description><![CDATA[<p>大家好!我03年购买的三洋CK21D5-03的电视机,现在有很严重的问题了,去修过几次,还把高压包边上的一个黑色的据说是三极管也换了,可是好了一天,现在开机就是黑屏,电源灯是亮的,按遥控有时候能出点电视节目出来,但是质量很差,屏幕并且显示距离关机时间为10分钟,关机时间的出现一般是完全没有电视信号才出现的,过2-3分钟后,什么都没有了,出现黑屏屏幕中间快速显示一个三色亮光,以后就死机了.运气好的话,拍拍电视又能正常的看电视了,能修好么?谢谢各位!</p><img title="湖南家电维修网论坛" src="http://www.hnwei.com/bbs/Skins/Default/emot/em06.gif" border="0" align="middle" onload="imgresize(this);" style="cursor: pointer;" alt="图片点击可在新窗口打开查看" onclick="javascript:window.open(this.src);"/>]]></description></item><item><title>[求助]三洋CK29F98PA开机烧行管</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26027&amp;Page=1</link><author>风中之火</author><pubDate>2008-10-2 21:34:58</pubDate><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <div class="t_msgfont" id="postmessage_3031961">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 三洋CK29F98PA&nbsp;&nbsp;LA76818+TDA9332+数字板&nbsp;&nbsp;开机即烧行管,换一个新的行包情况一样,用一100W的灯泡串在+B中.刚换上新行包时，二次开机后在行管C极可测到65V的电压，且中压也有90V左右，灯丝电压也接近4V。按经验此时行电路部份应该已经正常，于是撤除了灯泡，恢复原电路，二次开机后感觉行巳启动，但随后处于安静，心想行管又报销了，看看万用表，还好电压145V。此后继续串上灯泡检修，自此每次二次开机，行管瞬间导通，随即进入待机状态。47型万用表2.5V档压住TDA9332的13脚,行可启动半分钟,然后系统处于待机.但电压全降在灯泡上，在行包次级检测不到交流脉冲值，再也回不到刚换行包的那种感觉。难道行包在那一瞬间又坏了，真不可思义，这个行包又贵，且还要订制。拔掉偏转情况一样。求助哪位师傅破解</div>]]></description></item><item><title>机    型：三洋CKM2588H-00</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26017&amp;Page=1</link><author>梁兆兴</author><pubDate>2008-9-29 22:17:53</pubDate><description><![CDATA[<p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">机</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><span style="mso-spacerun:yes;"><font face="Times New Roman">&nbsp;&nbsp;&nbsp; </font></span></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">型：三洋</span><font face="Times New Roman"><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;">CKM2588H-00</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></font></p><p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">故障现象：开机瞬间有高压声，马上又消失，屏中间有色斑。</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">检</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><span style="mso-spacerun:yes;"><font face="Times New Roman">&nbsp;&nbsp;&nbsp; </font></span></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">修：估计是保护引起。测</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">CPU</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">（</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">15</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">）脚开机瞬间为高电平，马上又变为低电平。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">CPU</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">（</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">15</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">）脚开路，彩电能正常工作；这说明保护电路故障。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">R557</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路，故障现象不变，说明故障不是行场引起的。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">D556<span style="mso-spacerun:yes;">&nbsp; </span>D557<span style="mso-spacerun:yes;">&nbsp; </span>D558<span style="mso-spacerun:yes;">&nbsp; </span>D559 </font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">分别开路，故障现象不变，说明故障不是电源引起的。当把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">D561</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路时，故障现象消失。测</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">R554</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路。用</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">0.5W 150K</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">代换，故障排除。</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></p>]]></description></item><item><title>三洋CKM2588H-0检修小经验</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26016&amp;Page=1</link><author>梁兆兴</author><pubDate>2008-9-29 22:15:15</pubDate><description><![CDATA[<h1><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;"><p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">机</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><span style="mso-spacerun:yes;"><font face="Times New Roman">&nbsp;&nbsp;&nbsp; </font></span></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">型：三洋</span><font face="Times New Roman"><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;">CKM2588H-00</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></font></p><p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">故障现象：开机瞬间有高压声，马上又消失，屏中间有色斑。</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></p><p class="MsoNormal" align="left" style="margin:0cm 0cm 0pt;text-align:left;mso-pagination:widow-orphan;"><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">检</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><span style="mso-spacerun:yes;"><font face="Times New Roman">&nbsp;&nbsp;&nbsp; </font></span></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">修：估计是保护引起。测</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">CPU</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">（</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">15</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">）脚开机瞬间为高电平，马上又变为低电平。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">CPU</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">（</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">15</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">）脚开路，彩电能正常工作；这说明保护电路故障。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">R557</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路，故障现象不变，说明故障不是行场引起的。把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">D556<span style="mso-spacerun:yes;">&nbsp; </span>D557<span style="mso-spacerun:yes;">&nbsp; </span>D558<span style="mso-spacerun:yes;">&nbsp; </span>D559 </font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">分别开路，故障现象不变，说明故障不是电源引起的。当把</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">D561</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路时，故障现象消失。测</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">R554</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">开路。用</span><span lang="EN-US" style="font-size:12pt;mso-font-kerning:0pt;"><font face="Times New Roman">0.5W 150K</font></span><span style="font-size:12pt;font-family:宋体;mso-ascii-font-family:&quot;mso-hansi-font-family:&quot;mso-bidi-font-family:宋体;mso-font-kerning:0pt;">代换，故障排除。</span><span lang="EN-US" style="font-size:12pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt;"><p></p></span></p></span></h1>]]></description></item><item><title>求助三洋ck25d58c电路图</title><link>http://www.hnwei.com/bbs/dispbbs.asp?BoardID=49&amp;ID=26001&amp;Page=1</link><author>njz8895012</author><pubDate>2008-9-24 17:29:34</pubDate><description><![CDATA[可以发到我的QQ上&nbsp; 452336848]]></description></item></channel></rss>
