Backlighting - Simrad IS20 Manual

2.2 Backlighting

The display backlight may be adjusted at any time.
If no adjustment is performed within 3 seconds, the LCD
will return to last active view.
For red/white backlight color, refer to Display color,
page 17.
10 | Operation
1 Press the light key
−
2 Press one of the keys as described below to
change the display backlight:
a The Light key to increase the light level by one
step
b The Up/Down keys to increase/decrease the
light level by one step
3 Press the Enter key to confirm the selection
and return to last active display
The light level will be indicated with
flashing number on the LCD