我是一个电子爱好者,家里电磁炉坏了,美的S216D。插上电正常开机,指示灯都正常,风扇会转,不加热,发出滴、滴、滴的声音。
想着自己修一下,测了三大电容正常,取样电阻R3、R4、R19正常。18V电压正常,5V电压正常。测了同步电压Va=1.31V,Vb=4.47V,跟电路图不一致。有没有懂的师傅指导一下,还有哪里会坏?不是专业的,只能自己摸索。
![](http://tiebapic.baidu.com/forum/w%3D580/sign=69d80c19eed3fd1f3609a232004e25ce/b5c2ab8b87d6277f757cad0f6e381f30e824fcdb.jpg?tbpicau=2024-07-10-05_78d3749e8cd537e36425f7ef836d3213)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=a0aa9baa8def76093c0b99971edda301/3c3711d5ad6eddc4fd842bcc7fdbb6fd536633ed.jpg?tbpicau=2024-07-10-05_d5eaf7e0703278ea2e63178c596860e6)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=5d3cba3f1543fbf2c52ca62b807eca1e/e3c3b0a1cd11728bdc7013158efcc3cec2fd2cef.jpg?tbpicau=2024-07-10-05_c4def6d018411b2671b2472fe41b5204)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=70309f2d805c1038247ececa8211931c/adfef2dcd100baa15471d88c0110b912c9fc2eef.jpg?tbpicau=2024-07-10-05_8094f068fd1824ada4f3c079c36bcdd4)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=a2ee4357732ac65c6705667bcbf2b21d/0904953df8dcd10022c86716348b4710b8122ff0.jpg?tbpicau=2024-07-10-05_bddafc5570a9d71ac8e6ce2155f885a7)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=ad9a9080af50352ab16125006343fb1a/420c31c79f3df8dc466910a68b11728b461028f0.jpg?tbpicau=2024-07-10-05_67b5bd27f5e86cc3075961af86213a95)
想着自己修一下,测了三大电容正常,取样电阻R3、R4、R19正常。18V电压正常,5V电压正常。测了同步电压Va=1.31V,Vb=4.47V,跟电路图不一致。有没有懂的师傅指导一下,还有哪里会坏?不是专业的,只能自己摸索。
![](http://tiebapic.baidu.com/forum/w%3D580/sign=69d80c19eed3fd1f3609a232004e25ce/b5c2ab8b87d6277f757cad0f6e381f30e824fcdb.jpg?tbpicau=2024-07-10-05_78d3749e8cd537e36425f7ef836d3213)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=a0aa9baa8def76093c0b99971edda301/3c3711d5ad6eddc4fd842bcc7fdbb6fd536633ed.jpg?tbpicau=2024-07-10-05_d5eaf7e0703278ea2e63178c596860e6)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=5d3cba3f1543fbf2c52ca62b807eca1e/e3c3b0a1cd11728bdc7013158efcc3cec2fd2cef.jpg?tbpicau=2024-07-10-05_c4def6d018411b2671b2472fe41b5204)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=70309f2d805c1038247ececa8211931c/adfef2dcd100baa15471d88c0110b912c9fc2eef.jpg?tbpicau=2024-07-10-05_8094f068fd1824ada4f3c079c36bcdd4)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=a2ee4357732ac65c6705667bcbf2b21d/0904953df8dcd10022c86716348b4710b8122ff0.jpg?tbpicau=2024-07-10-05_bddafc5570a9d71ac8e6ce2155f885a7)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=ad9a9080af50352ab16125006343fb1a/420c31c79f3df8dc466910a68b11728b461028f0.jpg?tbpicau=2024-07-10-05_67b5bd27f5e86cc3075961af86213a95)