Press Setup; slide the Brightness / Volume bar up or down to change settings. Press the Back icon and then Yes to save.
Press Setup > Display & Audio Setup > enter an Authorized Code > Save.
To adjust the screen timeouts, highlight the option and select a time interval using the up/down arrows for each option (Backlight Off After, To Homepage After and Auto Slideshow After). Select the Temperature Unit.
Select Chime, Voice or Voice Chime operating mode.
To clean the keypad screen, press the Clean Screen icon; press Continue, or press Cancel to exit.