一本失传已久的电路板维修秘籍（望珍藏）

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                    <section data-role="outer" label="Powered by gulangu"><section><p><p><img src="image/20200927/352d9b199731581989517c7233487b8b_1.png" /></p></p></section><section data-tools="gulangu" data-id="90046"><section><section><section><section data-brushtype="text">电路板怎么维修？</section></section><section><section data-brushtype="text">今日话题</section></section></section></section></section><p><br  /></p><section data-tools="gulangu" data-id="90033"><section data-width="100%"><section><section><section><section><section><section data-role="circle" data-width="100%"><p><img src="image/20200927/7b6e430499c2a5e282c9b59ef56abdde_2.jpg" /></p></section></section></section></section><section data-width="100%"><section><section data-width="100%"><section><p>武功秘籍</p><p><br  /></p><p><br  /></p></section><section><p><img src="image/20200927/45386b2fb635dab7d8f526bb7528bd65_3.jpg" /></p></section></section></section></section><section><p>天下武功，唯快不破。</p><p>特赐300字箴言</p><p>望珍藏。</p><p>——牟工</p></section></section></section></section></section><section data-tools="gulangu" data-id="90048"><section><section><section><section><section><p><img src="image/20200927/8c9d90c2e2af459a41eb070a5bcfdf64_4.jpg" /></p></section><section><p><span>一块普通线路板电路组合成千万</span><br  /><span><br  /></span></p><p><span>元件长相经常变字符认清是关键</span><br  /><span><br  /></span></p><p><span>电阻电容最常见损坏也是很普遍</span><br  /><span><br  /></span></p><p><span>电阻阻值易变化电容漏容还漏电</span><br  /><span><br  /></span></p><p><span>电感变压是线圈简单测试看通断</span><br  /><span><br  /></span></p><p><span>二极管和三极管测那PN结正和反</span><br  /><span><br  /></span></p><p><span>MOS管和可控硅触发测试是关键</span><br  /><span><br  /></span></p><p><span>以上都是分立件集成电路很多年</span><br  /><span><br  /></span></p><p><span>模拟器件有运放虚短虚端来判断</span><br  /><span><br  /></span></p><p><span>光耦隔离前后级损坏那是千千万</span><br  /><span><br  /></span></p><p><span>数字器件经常见</span></p><p><span>40和74标前面</span><br  /><span><br  /></span></p><p><span>还有模数转换器测试起来很费力</span><br  /><span><br  /></span></p><p><span>别忘ROMCPLD烧写要靠编程器</span><br  /><span><br  /></span></p><p><span>CPU、单片机、</span></p><p><span> 时序判断逻辑仪</span><br  /><span><br  /></span></p><p><span>各种各样传感器损坏几率排第一</span></p></section><section data-width="100%"><p><img src="image/20200927/8c9d90c2e2af459a41eb070a5bcfdf64_5.jpg" /></p></section></section><section><p><img src="image/20200927/904d137d4a59d45b6d26d5bd0200a38c_6.jpg" /></p></section></section></section></section></section><p><br  /></p><section data-role="paragraph"><p><br  /></p></section><section><section><p><p><img src="image/20200927/959852c9eac79ba1e9c489b60b6fb83b_7.gif" /></p></p></section><p><br  /></p><p><span><strong><span>【版权声明】：</span><span>本文由整理发布，资料源自网络，版权归原作者所有，转载请注明来源！</span></strong><br  /><br  /></span></p><section><p><img src="image/20200927/0099e40f896adb842d5a69c6cde65f07_8.jpg" /></p><span><strong>微信ID：yxiubang</strong></span></section><section><span><strong><p><img src="image/20200927/3d50c8c9238d63bc2f0cee8c97c8bf3a_9.jpg" /></p>长按左侧二维码关注</strong></span></section><p><br  /></p><p><br  /></p></section></section><p><br  /></p>