Adjusting display backlighting/contrast

Normal operation

ST40 Compass Instrument - quick reference guide
orTo exit adjust mode press or wait for 5 second timeout
LEVEL 1 LEVEL 1
OFF LEVEL 2LEVEL 3LEVEL 2
To enter adjust mode, press for 1 second to adjust BACKLIGHTING and a further 1 second to adjust CONTRAST
SWITCH ON
Compass
heading
3 seconds
Set
alarm
level
Alarm on/off
Times out to the
Compass heading
screen after
5 seconds.
Off course
alarm
values
Locked
heading
Auto locked
heading
Course computer
sets auto lock
Course computer
sets auto lock

+

-

Momentary
With Set alarm level screen displayed,
to save the alarm level and return to
normal operation.
and keys simultaneously
press the
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