The hardest faults to locate are those that occur only Occasionally—intermittent functions. They are often due to undesirable connections, dust, dirt, corrosion or simply broken wiring or connectors.xsmbsxmbx? s? mi?n b?cxsmb th? 7K?t qu? x? s? th? 7K?t qu? x? s?xsmb hôm nayx? s? mi?n b?c hôm nayB?m ? ?? theo dõi VOH trênHi?n t?i nhà cái 12