User's Guide _______________________________________________________________________
58 ___________________________________________________________________ M210762EN-A
1. Open the MAIN MENU by pressing any of the ▲▼◄► arrow
buttons.
2. Select Display, press the arrow button.
3. Select Backlight, press the CHANGE button.
4. Select On/Off/ Automatic, press the SELECT button.
5. Press EXIT to return to the basic display.
Display Contrast Setting
1. Open the MAIN MENU by pressing any of the ▲▼◄► arrow
buttons.
2. Select Display, press the arrow button.
3. Select Contrast, press the ADJUST button.
4. Adjust the contrast by pressing the ◄► arrow buttons.
5. Press OK and EXIT to return to the basic display.
Keypad Lock (Keyguard)
This function locks the keypad and prevents unintentional key presses.
1. Keep pressing the left-hand function button for 4 seconds to
lock the keypad (at any display).
2. To unlock the keypad, press the OPEN button for 4 seconds.
Menu PIN Lock
You can prevent unauthorized changes of the device settings by
activating the menu PIN lock. When this function is activated, the
basic display and graphical view are available but access to the menus
is locked. The key symbol indicates the activation of this feature.
1. Open the MAIN MENU by pressing any of the ▲▼◄► arrow
buttons.
2. Select System, press the arrow button.
3. Select Menu PIN, press the ON button.
4. Enter a PIN code by using the ▲▼ arrow buttons. Press OK to
confirm the setting. Now the PIN lock is on and a key symbol is
shown in a display.
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