Maintenance Cases of MEDISON SONOACE X6 Color Doppler Ultrasound

The fault phenomenon

The color Doppler machine of SONOACE X6 operates normally, but there is no display in the image area after entering the working interface of the ultrasound.
 

Failure analysis

Remove the SONOACE X6 probe interface board and observe that the internal structure of the machine consists of only three plates, namely FE plate, BE plate and POWER plate. Since the probe has normal working sound after the normal start-up of the machine, and the two probes of the machine have no image display, first of all, the probes interface board and the probes themselves can be eliminated, the machine color mode and PW mode can be turned on, and the image area of the machine can display the working mode normally, eliminating the possibilities of the failure of the back part of the ultrasound, that is, the BE plate. At this time, the faults may concentrate on FE and POWER boards. The function of the front-end part of the machine is focused on FE boards, while POWER boards are responsible for the normal output of each voltage. The same faults still occur when replacing the POWER board testing machine. Finally, the FE board problem is determined.
 

Testing and repairing:

Replacement of FE board.