Furuno FM-4800 - 10 General Setup; Display Setup; Adjusting the Backlight; Adjusting the Contrast

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10. GENERAL SETUP
10.1 Display Setup
This feature allows you to set the backlight and contrast of the screen.
10.1.1 Adjusting the Backlight
Step 1 On the home screen, press the Menu/DSC control to enter the "MAIN
MENU" screen.
Step 2 Go to "GENERAL SETUP > DISPLAY SETUP".
The "DISPLAY" interface appears on the screen.
Step 3 Select "BACKLIGHT".
Step 4 Rotate the Menu/DSC control to adjust the backlight.
10.1.2 Adjusting the Contrast
Step 1 On the home screen, press the Menu/DSC control to enter the "MAIN
MENU" screen.
Step 2 Go to "GENERAL SETUP > DISPLAY SETUP".
The "DISPLAY" interface appears on the screen.
Step 3 Select "CONTRAST".
Step 4 Rotate the Menu/DSC control to adjust the contrast.