美的MC-PSDtitle> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <meta name="keywords" content="电磁炉不加热" /> <meta name="description" content="美的MC-PSD> <link href="/img/gdstw.css" rel="stylesheet" media="screen" type="text/css" /> <base target="_blank">  <script async src=></script> </head> <body> <script type="text/javascript" src="/js/newad.js"></script> <div> <div id="divHead"><table border="0" width="auto" cellspacing="0" cellpadding="0" bordercolor="#C0C0C0" style="border-collapse: collapse"><tr><td><script type="text/javascript" src="/js/head01.js"></script></td></tr></table></div> <div class="w960 center clear mt1"> <div class="pleft"> <div class="place"> <strong> ●</strong> <a href='/'>首页</a> > <a href='../'>玩转家电</a> > <a href='index.html'>电器维修</a> > </div> <div class="viewbox"> <div class="title"> <h1>美的MC-PSDh1> </div> <br><div align="left"><script type="text/javascript" src="/js/left.js"></script></div> <div class="content"> <p><strong>美的MC-PSDstrong></p> <p>该例电磁炉不加热的问题，是由IGBT 高压保护电路故障引起的，以下是故障检查方法与步骤，供大家参考。</p> <p><strong>检测步骤：</strong></p> <p>1、在不接线圈盘的情况下，上电测量 IC3 比较器 LM339 的第 1 脚是否为低电平。</p> <p>2、低电平则表明 IGBT 高压保护已动作。再测量 7 脚的电压是否为 4.98V，如果是，表示 IC3—LM339 已经损坏，更换后，故障排除。如果测量到的电压不正常，请检查 R16，R17 是否正常，把不正常的元器件更换，故障排除。</p> </div> <p><div align="left"><table border="0" width="auto" cellspacing="0" cellpadding="0"><tr><td colspan="2"><script type="text/javascript" src="/js/left-01.js"></script></td></tr><tr><td><script type="text/javascript" src="/js/left-02.js"></script></td><td><script type="text/javascript" src="/js/left-03.js"></script></td></tr></table></div></p> <div class="handle"> <div class="context"> <ul> <li>上一篇：<a href='15439.html'>美的MC-PSDa> </li> <li>下一篇：<a href='15441.html'>一例空调压缩机的接线图参考</a> </li> </ul> </div> </div> </div> </div> <div class="pright"> <div align="center"><table border="0" width="auto" cellspacing="0" cellpadding="0" bordercolor="#C0C0C0" style="border-collapse: collapse"><tr><td><script type="text/javascript" src="/js/right-01.js"></script></td></tr><tr><td><script type="text/javascript" src="/js/right-02.js"></script></td></tr><tr><td><script type="text/javascript" src="/js/right-03.js"></script></td></tr></table></div> <div id="box"> <div id="float" class="div1"> <div class="hot mt1"> <dl class="tbox light"> <dt class='light'><strong>热点内容</strong></dt> <dd class='light'> <ul class="c1 ico2"> <div id='tag0b0d2159ea469164278d18ab8587b990'> ·<a href='2491.html'>热电偶简易焊接接线图，热电偶偶丝直径与焊</a><br/> ·<a href='3128.html'>【图】电压计算公式与电压单位换算公式的用</a><br/> ·<a href='935.html'>离心式风机与轴流式风机有什么区别</a><br/> ·<a href='1844.html'>电动机单方向运转控制原理图与接线图</a><br/> ·<a href='4174.html'>安装太阳能路灯的优点_太阳能路灯的主要作</a><br/> ·<a href='3653.html'>环形灯管镇流器接线方法图解</a><br/> ·<a href='2097.html'>国标安全帽颜色代表什么意思</a><br/> ·<a href='1882.html'>单相电容异步电动机原理与接线图详解</a><br/> ·<a href='15231.html'>如何倒换母线？倒换母线的操作要领</a><br/> ·<a href='1692.html'>漏电保护器与空开的接线方法图解</a><br/> </div> </ul> </dd> </dl> </div> <div align="center"><script type="text/javascript" src="/js/right-05.js"></script></div> </div> </div> </div> </div> <br><script type="text/javascript" src="/js/gdjyw-3.js"></script> <br><script type="text/javascript" src="/js/news-2.js"></script> </body> </html>