How do I adjust the screen brightness on my TH6210U2001, TH6220U2000, TH6320U2008?
Note this does not apply for the RTH6330.
Brightness options and Brightness levels are in the ISU settings.
- Press and hold CENTER and + buttons for approximately 3 seconds to enter advanced menu.
- Press Select to enter ISU.
- Press Select to cycle through menu setup options.
- Press + or - to change values or select from available options.
- Press Select and confirm your settings or press Back to ignore changes and return to ISU menu screen to continue editing another setup option.
- To finish setup process and save your setting, press Home and return to Home screen.