Light; Illuminating The Display Manually; Auto Light; Configuring The Auto Light Setting - Casio 5537 Operation Manual

Light

The watch has an LED light that you can turn
on for viewing in the dark.
The watch also has an auto light function that
automatically illuminates the display
whenever the watch is angled for reading in
the dark.
Illuminating the Display
Manually
Pressing (B) turns on illumination.
The LED light will turn off automatically if the
●
alarm starts to sound.

Auto Light

If Auto Light is enabled, display illumination
will turn on automatically whenever the watch
is positioned at an angle of 40 degrees or more
when it is dark.
Important!
Auto Light may not operate properly
●
when the watch is at a horizontal angle
of 15 degrees or greater from
horizontal as shown in the illustration
below.
Auto Light may operate unintentionally
●
and run down the battery if the watch
is blocked from light by your sleeve.
Electro-static charge or magnetism
●
can interfere with proper auto light
operation. If this happens, try lowering
your arm and then angle it towards
your face again.
When moving the watch you may note
●
a slight rattling sound. This is due to
operation of the auto light switch,
which determines the current
orientation of the watch. It does not
indicate malfunction.
Operation Guide 5537
Note
Auto Light is disabled when any one of
●
the conditions below exists.
Alarm, timer alert, or other beeper
ー
sounding
Configuring the Auto Light
Setting
1.
Enter the Timekeeping Mode.
Navigating Between Modes
l
2.
Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
3.
Press (D) 12 times to display [AUTO].
4.
Press (E) to toggle Auto Light between
40
enable and disable.
degrees
or more
[ON]: Illumination turns on when the watch
is angled towards the face.
[OFF]: Illumination does not turn on when
the watch is angled towards the face.
5.
Press (A) to exit the setting screen.
Specifying the Illumination
Duration
You can select either 1.5 seconds or three
seconds as the illumination duration.
1.
Enter the Timekeeping Mode.
Navigating Between Modes
l
2.
Hold down (A) for at least two seconds
until the name of the currently selected
Home City is displayed.
Home City
3.
Press (D) 13 times to display [LIGHT].
4.
Press (E) to toggle between the two
illumination duration settings.
[1]: 1.5-second illumination
[3]: 3-second illumination
5.
Press (A) to exit the setting screen.
Home City
17