Tool it DBT 500 Mode D'emploi page 22

User manual
Equipment testing
A. Screen test
The screen test function checks whether the LCD screen is fully operational.
1. Press to start the test, and
2. Watch closely for missing pixels on the various scrolling colour screens.
B. Key test
The key test function is used to check whether the keypad is working properly.
1. Press to start the test.
2. Press each button. If the name of the button appears on the screen when pressed, it is working.
2. If it is not displayed, then the button is not working properly.
3. Press twice to exit the test.
About
View the software version and serial number of the product.
22
Translation of the original
instructions
Device test
Screen test
Key test
to exit at any time.
Key test
UP DOWN
ESC ENTER
About
SW VER:1.3.0
HW VER:V1.1.0
SN:202005196546
DBT 500