牙科综合治疗椅无法升级维修故障实例分析（型号菲曼特F1）

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/cca916120cd2d8bba8212ef4242100e1_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障现象</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; 该牙科综合治疗椅可以上升，但是无法下降，按下降过程中显示代码“7”。<br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障分析及处理</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>1、该设备的椅位在上升下降过程中到最低点时，显示代码为“7”，椅位升至最高点时，显示代码为“8”。根据故障现象，这说明控制椅位升降的电位器已损坏。<br  /></p><p>2、拆下牙科椅座底下的塑料外壳，拆下整个升降控制板，就可以看到蓝色的电位器。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/4e861eb708c90d02a9b9258842547dba_2.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>3、旋送一点点固定电位器的内六角螺丝（不要拆下整个内六角，不好固定），轻轻拿出电位器。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/4cf974aa2120d078409b7f88a61ba715_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>4、更换电位器后，把电位器的开关指向中间的引脚。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/595645286d0f0bb9549ad45496900255_4.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>5、把牙科椅降至尽可能低（不影响装电位器），装上电位器后，轻轻固定电位器，接着升牙科椅到尽可能高，直到无法升高后，再拿出电位器，不能碰到电位器的旋钮开关。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/90fe39de33c9d135fc849276ed95c6fb_5.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>6、拿出电位器后，接着升牙科椅到所需要的高度，最后再安装电位器。最后测试，牙科椅升至最高时，显示代码为“8”，降至最低时，显示代码为“7”，整个牙科椅运行正常。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/deda5e1cbbf9bc1b0705417eee26913d_6.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障结果分析</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; 该设备的升降控制电位器损坏，导致牙科椅无法升降，更换电位器，要进行编码定位，才能准确得控制牙科椅的升降。</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/e6e4f4f6092506054245406b1fa1c78d_7.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>