Revision:1.0(2023-01-12)
426
• 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 battery pack before the test. If the fault persists, replace the
battery management board and then the main board.
Z1501 Battery Pack Fan Speed Test
• Upper-level test item
Communication test for the battery management board
• Test Items
Set and read the battery pack fan speed through the battery management board 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 battery pack fans are blocked (do not rotate), or a fault is detected
on the battery management board.
• 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 battery pack fans rotate properly. If so, replace the
battery management board and then the main board.
Z1601 Communication Test for the Battery Capacity Indicator Board
• Upper-level test item
SM ARM Communication Test
• Test Items
Check whether the UART connection between the SM ARM and the battery capacity indicator
board ARM is normal, and read the firmware version and board ID.
• Test failure analysis
If the test result is Error, the drive is abnormal.
If the test result is FAIL, the UART connection between the SM ARM and the battery capacity
indicator board ARM is abnormal.
• 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 display assembly and then the main board.
Z1602 Gravity Sensor Test
• Upper-level test item
Diagnostic Ultrasound System
Service Manual
9 Appendix
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