Chapter 5. Additional Functions691. Press the 'MENU' button in the bottom right-handcorner of the unit for the 3 minutes.2. Then,Quick menu will be displayed in the upper left-hand corner of the window.5.4. Quick MenuBRIGHTNESS : Set up the brightness of the screen.VOLUME : Volume can be set up immediately.CALIBRATION: If the system stops moving completelyand you cannot activate any of the buttons, it could be ascreen calibration issue.In such case, Screen calibration can be performed.