1.Switch appliance into standby mode.
2.Press Display, 5, V-and POWER buttons on RC.
3.Press button 2 and 5 to select settings.
4.Press buttons 1 and 4 to change adjustment items.
5.Press buttons 3 and 6 to adjust values.
6.Press MUTING the 0 buttons to save settings.
7.Press home button or turn off the set to exit service mode.