Hi I have two Ic hummers and would like to use them on two IC together on the body. It seems that the two hummers are connected to the same IC, and leave the other one not working. How to distinguish them pls advise . Thanks
嗨,我有兩個 Ic 悍馬,想在兩個 IC 上一起在車身上使用它們。似乎兩個蜂鳴器連接到同一個 IC,而另一個不工作。如何區分它們請指教。謝謝