Yachting Electronic Co. NAKI8850B, Руководство пользователя

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select Backlight. option.
3) Press ENT to confirm selecting
4) Use the Up / Down Arrow to change the value.
5) Press ENT to confirm the setting.
6) Press EXIT to exit.
Contrast Contrast
Contrast is used to let you get a most suitable display when
you operate the unit.
To set the Contrast:
1) Press MENU to enter into menu
setting,
2) Use the Up / Down Arrow to
select Contrast option.
3) Press ENT to confirm selecting
4) Use the Up / Down Arrow to
increase / decrease the value.
5) Press ENT to confirm the setting.
6) Press EXIT to exit.