Revision:1.0(2023-01-12)
415
PHV Communication test
• Test Items
Enable the fixed power voltage ±100 (HV voltage) for the PHV board. Obtain the monitored
board voltage through the UART of the PHV ARM and check whether the voltage is within the
specified range.
• Test failure analysis
If the test result is Error, the drive is abnormal.
If the test result is FAIL, the fixed high voltage does not meet the requirements.
• Troubleshooting suggestion
1. If the test result is Error, restart the device and re-perform the self-test. If the problem persists,
restore the device.
2. If the test result is FAIL, replace the main board.
Z0213 Temperature Test
• Upper-level test item
Communication Test Between PC Module and MF FPGA
• Test Items
The PC reads the FPGA core temperature and CPU temperature through the PCIe bus.
• Test failure analysis
If the test result is Error, the drive is abnormal.
If the test result is FAIL, the FPGA core or CPU temperature is too high.
• Troubleshooting suggestion
1. If the test result is Error, restart the device and re-perform the self-test. If the problem persists,
restore the device.
2. If the test result is FAIL, check whether the fans are blocked, whether the FPGA and CPU
radiators are properly assembled, and whether the heat-conducting cream and radiator are in
good contact.
Z0301 Fan Speed Test
• Upper-level test item
SM ARM Communication Test
• Test Items
Set the fan speed through the UART of the SM ARM and judge whether the current fan speed
meets the requirements.
• Test failure analysis
If the test result is Error, the drive is abnormal.
If the test result is FAIL, the fans are blocked (do not rotate), or a fault is detected on the main
board.
• Troubleshooting suggestion
Diagnostic Ultrasound System
Service Manual
9 Appendix
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