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6.1.7 Self Test
1.
Screen Test
Test whether the screen has any pixel defects by displaying five colors: White, Red, Green, Blue and
Black. Press 'Preset' key to switch the screen color and press '←' key to exit the test.
2.
Keyboard Test
Enter the keyboard test interface. Press the function keys at the front panel one-by-one and observe
whether the corresponding key is checked. If not, an error may have occurred in that key. To exit the
test, press '←' four times.
3.
LCD Test
If the keys at the front panel are transparent, when the key is pressed, the corresponding backlight will
turn on when testing it.
4.
Touch Test
Test whether the touch screen has any defects by touching the test button at specific spots on screen.
6.2 Display
Control the display of the screen.
6.2.1 Grid Brightness
Control the display grid brightness.
Table 6-1 Grid brightness
Parameter
Default
Range
Unit
Knob Step
Direction Key Step
6.2.2 Screenshot
Toggle between normal and inverse color for images of the display saved to storage.
The color of traces is not inversed in inverse mode.
96 T3VNA User Manual
Explanation
30%
0 - 100%
None
1%
1%
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