Fault Cases of SIEMENS ACUSON S2000 Color Doppler Ultrasound

Fault phenomenon

The S2000 machine shuts down automatically about half an hour after normal use, and there is no error warning during shutdown.

Fault analysis

The automatic shutdown of color Doppler machine in use is usually caused by the failure of power supply or the poor heat dissipation effect of the machine. Due to the normal start-up process of the machine, first consider whether the excessive accumulation of dust inside the machine leads to the decline of the heat dissipation capacity of the machine. After opening the case, a large amount of dust accumulated in the case is found. After dust removal and cleaning, the machine is restarted for testing. The machine will shut down automatically again after one hour of use. Therefore, it is judged that the failure should be related to the heat dissipation effect of the machine and the power supply part appears. Obstacles are less likely. Because this fault is similar to the general computer heat dissipation fault, the general computer will shut down or shut down automatically when the CPU temperature of the main board is too high, and the CPU temperature is too high, which is caused by the failure of the cooling fan or the power supply circuit of the main board itself. The RM board in the S2000 machine is similar to the computer motherboard. It is tested by replacing the board. It feels hot when touching the RM board, which further confirms the possibility of poor heat dissipation effect of the RM board.

Troubleshooting

After replacing the RM board, the automatic shutdown failures did not occur again in the afternoon of boot-up test. Troubleshooting.