Komatsu PC308USLC-3E0 Operation & Maintenance Manual page 88

DETAILED CONTROLS AND GAUGES
Liquid Crystal Monitor Adjustment Switch
Press switch (12) to adjust the brightness or contrast of the display
monitor.
Adjusting Brightness
1.When monitor adjustment switch (12) is pressed, the monitor
display screen changes to the brightness/contrast screen shown
in the diagram on the right.
2. Use the brightness/contrast screen and press up switch (9) or
down switch (10) to select brightness of the monitor.
(The selected monitor is inverted to black.)
3.When the screen changes to the brightness adjustment screen,
press up switch (9) or down switch (10) to adjust the brightness.
4.After completing adjustment of the brightness, press input
confirmation switch (11).
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OPERATION