When our electrical failure, the first suspicion is that the internal parts of the failure, such as the outlet socket is normal, the connector is normal, the connector is normal, if you judge it to failure? We can judge by the following four simplest ways:
1. The first is to see
With the eyes of various electrical switches, buttons and knobs, etc. are placed in the correct position, with or without missing or damaged, the display on the screen and the indicator is normal, the appearance of the machine is not damaged. Disassemble the appliance to see if the internal connectors and connections are missing or loose, and whether the printed circuit board is broken or damaged. Resistors, capacitors, transistors, manifolds and other components with or without scorch, burst, defect or broken legs, desoldering. The sensors, detection lights, adjust the switch, etc. for damage and displacement. Transmission belts and gears, such as no deformation, aging and fall off. Transport organizations, such as transmission rod without displacement, deformation and damage, the action is flexible components. After power machine test machine there is no ignition and smoke phenomenon. Magnetic head is broken or unclean.
2. Nose smell
Smell the nose with a burnt smell or other smell.
Flip the electrical flip, listen to the machine with or without loose parts or knocking noise.
Gently pull the connection by hand, plugs, sockets and components, to see whether the fall off. Pull the parts and try out their tightness and flexibility. Power, touch the power transformer, adjust the tube, manifold or other related components, to see if there is overheating.
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