Dc resistance test in the road

 A multimeter is ohm block,the direct measurement of IC on the PCB pin and peripheral components to a direct current 8500w gasoline generator resistance,and compared with the normal data,electrical motor the method to identify and determine the fault.When measuring the attention should be paid to the following three points:(1) measurement to disconnect the power before,to avoid damage when testing meters and components.(2) the multimeter internal electricalmotor1.blogspot.com voltage electric block shall not be greater than 6 v,range it is better to R * 100 or R * 1 k.(3) measurement IC pin parameters,pay attention to the measurement conditions,such as the model to be tested,the electrical motor 24v moveable arm of a potentiometer position related to IC,etc.,also consider the stand or fall of peripheral circuit component.