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 <title><![CDATA[有修过西门子220VLOGO 电源板的吗？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215.html]]></link>
 <description><![CDATA[Latest 50 replies of 有修过西门子220VLOGO 电源板的吗？]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <description><![CDATA[先检测整流；滤波电路看是否也有击穿现象；最看看保电路是否有击穿现象；确认无误后更换驱动集成电路。接上假负载，测输出电压是否正确稳定。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215#989547.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 Mar 2011 03:32:05 +0000]]></pubdate>
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 <description><![CDATA[这个是开关电源驱动的集成电路，用万用表测试只是一般的简单判断。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215#983640.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 Mar 2011 04:17:49 +0000]]></pubdate>
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 <description><![CDATA[内部原理图 [attachment=55978]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215#982039.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Mar 2011 06:42:03 +0000]]></pubdate>
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 <description><![CDATA[器件是一个电源开关驱动。 [attachment=55976]&nbsp;&nbsp;[attachment=55977]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215#982036.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Mar 2011 06:39:26 +0000]]></pubdate>
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 <description><![CDATA[是一只电阻，1.62M欧，估计类似于开关电源里的启动电阻]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-97215#981880.html]]></link>
 <author><![CDATA[xwhxn_000]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Mar 2011 02:47:00 +0000]]></pubdate>
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