The chip of the veterinary B-ultrasound mechanical probe does not swing. This kind of fault is generally caused by a problem with the circuit inside the veterinary B-ultrasound probe or the swing motor has no power supply.

If the chip of the veterinary B-ultrasound mechanical fan-sweep probe cannot work normally, it cannot transmit and receive echo signals, so it is impossible to produce images. There is a small printed circuit board inside the ADR EFT. The power supply, pulse signal and control wiring are all concentrated on this small printed circuit board. The three wire holes are separated from the veterinary B-ultrasound probe oil and sealed with silicone rubber, but oil leakage often occurs.

Veterinary B-ultrasound mechanical fan-sweep probe

This kind of veterinary B-ultrasound probe oil is weakly acidic and corrosive. Sometimes the fan-sweep motor wiring of the small printed circuit board is corroded and broken, causing the motor to fail to rotate. When checking the veterinary B-ultrasound probe, use an ohmmeter to measure the low resistance on the probe socket. The normal resistance value is ohms. If the needle does not move and points to the infinite position, it means that the fan-sweep motor wiring is blocked. At this time, the small printed circuit board can be removed from the veterinary B-ultrasound mechanical probe, the broken wire position can be found, and the broken wire on the printed board can be repaired with a jumper, and a layer of transparent quick-drying paint can be applied to prevent corrosion. The three wire holes should also be cleaned of oil film and sealed with silicone rubber. After leaving for hours, they can be assembled.

If there is an ohm resistance between the pins and of the veterinary B-ultrasound mechanical probe socket, but the chip cannot swing, it is necessary to check whether the fuse tube on the probe control printed circuit board of the veterinary B-ultrasound host has been burned out and cannot supply power to the fan sweeping motor. In this case, do not rush to replace the fuse tube. You should perform a detailed inspection according to the short-circuit test parameters listed in the table before replacing it with a fuse tube of equal capacity.

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