Illumination; Reference - Casio W210-1BV Operation Manual

Operation Guide 2963

Illumination

An LED (light-emitting diode) and light guide panel
Three-second indicator
illuminate the entire display for easy reading in the dark.
• See "Illumination Precautions" for other important
information.
To illuminate the display
In any mode, press L to illuminate the display.
• You can specify 1.5 seconds or three seconds as the
illumination duration. See "To specify the illumination
duration" for more information.
To specify the illumination duration
In the Timekeeping Mode, hold down C for about two seconds to toggle the
illumination duration between three seconds (3 SEC displayed) and 1.5 seconds
(3 SEC not displayed).
• Pressing C also toggles between 12-hour and 24-hour timekeeping.
• When the three-second setting is selected, the three-second (3 SEC) indicator
remains on the display in all modes.
• To protect against running down the watch's battery, the watch switches to the
1.5-second setting automatically about seven hours after the three-second setting is
selected. To continue to use the three-second setting, perform the above procedure
again.

Reference

This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto return features
If you leave a screen with flashing digits for one or two minutes without performing
any operation, the watch automatically saves any settings you have made up to that
point and exits the setting screen.
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination automatically turns off whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
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