Hitachi ZW 550-6 Operator's Manual page 107

3. Press selector knob (2) to display Brightness Adjustment
screen (5).
4. Rotate selector knob (2) clockwise to make the screen
brighter, counterclockwise to make the screen darker.
f
NOTE: When the machine's head light switch is turned ON,
the monitor screen changes to night mode and mark (6) is
displayed. Brightness can be adjusted for day mode and night
mode respectively.
OPERATOR'S STATION
1-43
2
5
6
MNEC-01-006
MNHG-01-121EN
MNHG-01-122EN