M? th?y ng??i ch?t nh?ng ch?a ch?t là ?i?m gì? Gi?i mã gi?c m? th?y ng??i ch?t nh?ng ch?a ch?t và nh?ng con s? might m?nThe hardest faults to search out are those who take place only once in a while—intermittent functions. They may be because of terrible connections, dust, dirt, corrosion or simply broken wiring or connectors.Oscilloscope cus