C-8 Description of Self Test Items
C.1.17 Z0502 Secondary LCD Monitor Brightness Control
Test
Top test item
Secondary LCD Monitor I2C Interconnection Test
Test content
The dialog box appears when performing the test. The program controls the brightness of
secondary LCD monitor via 12C interface. The brightness goes down to the lowest, and then goes
up to the highest, then gets back to normal. If backlight changes, click “Yes, I Can”, otherwise click
“No, I Can’t”. If the user clicks “Retry” the system will repeat the procedure mentioned above.
Analysis to test failure
The drive goes wrong if the test result appears Error.
Brightness control of secondary LCD monitor goes wrong if the test result is FAIL.
Suggestion to failure test
Restart the device to perform the self test if the test result appears Error. It is necessary to restore
the device (OS+doppler) if Error re-appears.
It is recommended to replace secondary LCD monitor if the test result is FAIL.
C.1.18 Z0601 Touch Screen USB Communication Test
Top test item
N/A
Test Content
Test whether the operating system can recognize the touch screen device.
Analysis to Test Failure
If the test result is FAIL, it indicates the operating system cannot recognize the touch screen
device.
Suggestion to Test Failure
Check whether the cable of the touch screen is connected well or not.
C.1.19 Z0602 Touch Screen Function Test
Top test item
Touch Screen USB Interconnection Test.
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