Komatsu D31EX-21, Operation & Maintenance Manual, Page: 79 / 256

OPERATION
EXPLANATION OF COMPONENTS
3-27
METHOD OF USING USER ADJUST MODE
With the user adjust mode, the brightness of the panel screen backlighting and the contrast of the liquid crystal
panel can be changed.
1. Adjusting backlighting of liquid crystal display
2. The diagram on the right is the mode for adjusting the
brightness of the backlighting of the liquid crystal panel.
This display will be switched to the screen brightness
adjustment display, if the alarm buzzer cancellation switch
is turned to the position.
3. The brightness can be adjusted by operating the informa-
tion switch.
The higher the number, the brighter the screen becomes;
the lower the number, the darker the screen becomes.
> position: Number increases
< position: Number decreases
4. The brightness of the backlight for the LCD gauges may be
held constant by turning the alarm buzzer cancellation
switch to the position.
REMARK
To return to the maintenance mode, operate the buzzer cancel switch to „ .
The brightness of the backlighting of the monitor panel differs according to whether the front lamp is lit or not.
Entering this mode when the front lamps are lit makes it possible to adjust the brightness when the front lamps are
lit. In the same way, entering this mode when the front lamps are not lit makes it possible to adjust the brightness
when the front lamps are not lit.