The transformer is the middle part of the overhaul, if encountered burned insurance failure, the first off the high voltage transformer windings, the fault zone is divided into a high side or low side. Connecting the low voltage side of the transformer leads generally thin, thin and low-voltage insulating materials, resistance of the primary side of the transformer is small, generally about 2 ohms, and the high voltage lead coarse measurement, a high-pressure insulating material (like TV Like high-voltage machines), the high-pressure side of the filament resistance is almost zero ohms, high voltage winding resistance of a few hundred ohms.NuFservice manual download site