Peteryang 发表于 22-3-27 01:29:33

Axial原厂接收修复作业

上一条帖子说到接收器坏掉，主要讲了去除灌封胶的过程，链接如下

https://app.rcfans.com/mag/circle/v1/forum/threadWapPage?tid=1219691&themecolor=f8980f&circle_id=117

今天稳压三极管到了，如图，这么小一丢丢
http://image.rcfans.com/pic/20220327/1648315200399276868.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
前面已经讲到了，这个稳压三极管，是给接收的单片机主控attiny24a提供3.3V供电的，现在失效了，导致接收器停止工作。

所以本次工作很简单，主要是更换稳压三极管，难点就是东西很小，操作要细心，手要稳。

首先是准备工作，把东西都拿出来
http://image.rcfans.com/pic/20220327/1648315343491238819.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20220327/164831537620437561.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
然后是将损坏的贴片取下，并将焊点处理干净
http://image.rcfans.com/pic/20220327/1648315414883033759.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
把电烙铁头的清理干净，锡也要擦干净，将新的贴片焊接就位，清理烙铁头的目的是避免小贴片被烙铁头的焊锡糊住。这样焊接起来更清爽。
http://image.rcfans.com/pic/20220327/1648315538754042651.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
然后是用酒精片清理干净工作面，清理干净除了外观好看一点，还可以清晰的检查焊接缺陷。
http://image.rcfans.com/pic/20220327/1648315567219084101.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
下图是清理干净的样子
http://image.rcfans.com/pic/20220327/164831561342187478.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
通电试机，工作正常
http://image.rcfans.com/pic/20220327/1648315638540029314.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
作业完成
http://image.rcfans.com/pic/20220327/1648315652742782405.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

caolemeng 发表于 22-3-27 11:06:48

厉害了

好手艺

CloudWalker 发表于 22-3-28 00:27:40

厉害，学习了。

fintage 发表于 22-3-31 21:36:38

好手艺，这个控挺不错的
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