Konnwei KW590, Руководство пользователя

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B. Keyboard Test
The Keyboard Test function verifies if the keys are functioning properly.
1)
Use UP/DOWN scroll button to select Keyboard Test from the Tool
Self-test menu, and then press ENTER button.
2) Press any key to start test. When you press a key, the key name should
be observed on the display. If the key name does not show up, then the
key is not functioning properly.
• If you press and hold the power switch, the key name does not show on
the screen, but resets the scanner when powered by vehicle battery, If it
does not restart the scanner or power off the scanner, the key is not
working properly.
3) Double press ESC to return to previous menu.