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Universal Knob
1. Select the desired submenu.
In menu operation, press any menu softkey and turn the Universal Knob to
select the desired submenu under the menu and push down the knob to
confirm the current submenu. Turn clockwise to increase the display intensity
and counterclockwise to decrease.
2. Modify parameters.
After having chosen a parameter, turn the Universal Knob to modify the value.
Turn clockwise to increase the intensity and counterclockwise to reduce. In
addition, it can also be used to adjust scale and offset of MATH and REF. Press
this button to display the virtual menu, you can directly select the desired
value.
3. Choose file or directory or input filename.
After having entered the file system, turn the Universal Knob to select the
desired file or directory. When inputting filename, turn the Universal Knob to
select the desired character and the push the knob to confirm.
4. Call out the virtual keyboard
Press the knob to call up the virtual keyboard; turn the Universal Knob
clockwise or counterclockwise to select the desired value on the virtual
keyboard.
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