超短波电疗机维修故障分析（型号DL-C-M）

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/8ee94bf6070748e09ec0b3b284de4ed6_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section><p>故障现象</p></section><p><img src="image/20201019/1baaddc91bd1867ba85af4d8a8c81c24_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;该超短波运行过程中出现输出电流无法调大，一直在50mA左右。输出调节调到2档、3档、4档、5档也无法调大。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/8194504c9d836f7bce9b4a48155239a7_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>故障分析及处理</p></section><p><img src="image/20201019/1baaddc91bd1867ba85af4d8a8c81c24_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p>1、该设备输出电流无法升高，首先考虑设备是否超短波输出。</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;对该设备进行运行测定，在两个电极板之间放置日光灯管，在治疗状态下调节输出档位和输出调谐，发现日光灯管有处于“亮”的状态，而且根据调节的大小，出现暗亮，这说明该设备有输出。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/7f0e80f77f3592db4dc0ba1661decc5d_5.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/db2e45f549a8dc1452b026c6dd115d36_6.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>2、考虑到该设备使用年限已有5年的时间，电子管很久没有更换过，因为电子管属于损耗品，所以更换两个电子管（两个电子管必须整对更换，已达到匹配状态）后，设备试机正常，故障排除。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/f4c8d459bf1aee4241cd69f95bd63e0f_7.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>故障诊断结果</p></section><p><img src="image/20201019/1baaddc91bd1867ba85af4d8a8c81c24_2.png" /></p> <section></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp; 该设备的电子管使用寿命到期，导致输出电流无法调大，更换整对电子管后，故障排除。</p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p>欢</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>迎</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>注</p></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><img src="image/20201019/d2e05deabab819bae47f82dba02dfe6e_9.jpg" /></p></section></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section></section></section></section></section>