Revision:1.0(2023-01-12)
421
If the test result is Error, the drive is abnormal.
Backlight control of primary LCD monitor goes wrong if the test fails.
• 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. If the problem persists, replace the main
board.
Z0906 Optical Sensor Test
• Upper-level test item
Main display I2C communication test
• Test Items
The following dialog box appears during the test. Ensure that the device is not in a dark room
environment during the self-test. Otherwise, the test requirements are not met.
Completely cover the optical sensor at the top of the screen with your hand for at least 5s. If
the value displayed on the screen becomes smaller, take off your hand from the optical sensor
and check whether the value displayed on the screen becomes greater. If the preceding
procedures are normal, click Yes, I Can; otherwise, click No, I Can't. See the figure below:
• Test failure analysis
If the test result is Error, the drive is abnormal.
If the test result is FAIL, the optical sensor is faulty.
• Troubleshooting suggestion
Diagnostic Ultrasound System
Service Manual
9 Appendix
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