1) When testing cables or electronic equipment, the probes should meet the requirements. It is strictly forbidden to use the test leads or copper wires to directly detect the jacks of the power connector, or damage the inner wall or touch the pins;
2) Before testing the power connector on the test cable and the electronic device, check the power connector (plug and socket) on the test cable. Any shape damage, pin (hole) corrosion, pin distortion, insertion Hole deformation, dust pollution, wire breakage, and broken skin of the shield cannot be plugged;
3) The plugging and unplugging operation of the power connector during the test should generally be carried out after the power supply is disconnected for at least 3 minutes, and the hot plugging is prohibited;
4) After the model and product electrical performance test is completed, if the power connector is not separated for a long time, the power connector should be insured according to the requirements of the design and process documentation. When the fuse is insured, the locking device of the power connector cannot be loosened.