The toughest faults to locate are those who happen only Every so often—intermittent situations. They are often attributable to negative connections, dust, Dust, corrosion or just damaged wiring or connectors.Ph?n l?n m?c tiêu chung c?a ng??i ch?i cá c??c t?i 123B là h??ng t?i s? chi?n th?ng. M?c dù có t? l? c??c cao h?n nh?ng n?i khác nh?ng