Komatsu PC118MR-8 Operation And Maintenance Manual page 136

INSTRUMENTS AND CONTROLS
3. The monitor displays "No message". Press F5 to return to
the standard screen.
c. Screen settings
The screen brightness, contrast and backlighting levels can be
adjusted from the screen settings menu.
1. From the standard screen, press F6.
2. Select screen settings in the user menu and press F6. The
monitor displays the screen settings menu.
q On machines equipped with video camera, the
brightness, contrast and backlighting levels for the
video camera screen can also be set from this menu.
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FUNCTIONING
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