Jensen VM9413 Guide De Référence Rapide page 9

21. Touch the TFT screen to control head unit functions.
22. Press to close the TFT screen.
23. Press once to adjust the downward tilt angle of the screen one step at a time or
press and hold to adjust the angle in a continuous motion.
24. Press once to adjust the upward tilt angle of the screen one step at a time or
press and hold to adjust the angle in a continuous motion.
25. Press to adjust the display aspect ratio of the picture to one of three settings:
Full, Normal or Standby.
Press and hold to adjust the Brightness and Contrast. Press the volume control
to move between Brightness and Contrast. Turn the rotary encoder to adjust the
setting for the selected option.
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