Trouble phenomenon
The power button of the portable ultrasound is not working.
Troubleshooting
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.
Summary
The device power-on button fails, and the contact point of the mask is damaged.
Service context
Rongtao uses this technical record for Hitachi Power Supply as supporting context for quote intake, photo comparison, board identification and repair-route selection. For live availability, send the machine model, board label, fault symptom and clear photos of both sides of the part.