The power button of the portable ultrasound is not working.
1. According to the fault phenomenon, the power-on button of the device is damaged. The ultrasound power button is an integrated mask unit. Therefore, the entire mask unit needs to be replaced.
2. Remove the cover on the back and remove the circuit boards layer by layer. After the final replacement, the fault is eliminated.
The device power-on button fails, and the contact point of the mask is damaged.