Alarms; Power Supply; Illumination - Casio 5129 Operation Manual

Alarms

When an alarm is turned on, the alarm tone will sound when its alarm time
Alarm number
is reached. One of the alarms is a snooze alarm, while the other four are
one-time alarms.
You also can turn on an Hourly Time Signal that causes the watch to beep
twice every hour on the hour.
•
There are five alarm screens numbered
for the one-time alarm, and a snooze alarm screen indicated by SNZ . The
Hourly Time Signal screen is indicated by SIG .
• All of the operations in this section are performed in the Alarm Mode, which
you enter by pressing C.
To set an alarm time
Alarm time
(Hour : Minutes)
1. In the Alarm Mode, use
whose time you want to set is displayed.
• To set a one-time alarm, display alarm screen
AL4 . To set the snooze alarm, display the SNZ screen.
• is the hourly time signal setting.
SIG
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down A for about three seconds until the hour setting of the alarm time
starts to flash. This is the setting mode.
• This operation turns on the alarm automatically.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
5. Press A to exit the setting mode.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the
case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, or
until you turn the alarm off.
• Alarm and Hourly Time Signal operations are performed in accordance with the current time in your
Home City, as kept in the Timekeeping Mode.
• To stop the alarm tone after it starts to sound, press any button.
• Performing any one of the following operations during a 5-minute interval between snooze alarms
cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the SNZ setting screen
To turn an alarm on and off
1. In the Alarm Mode, use
Snooze alarm indicator
2. Press A to toggle it on and off.
Alarm on indicator
• Turning on an alarm (
displays the alarm on indicator on its Alarm Mode screen.
• In all modes, the alarm on indicator is shown for any alarm that
currently is turned on.
•
The alarm on indicator flashes while the alarm is sounding.
• The snooze alarm indicator flashes while the snooze alarm is sounding
and during the 5-minute intervals between alarms.
ON
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use
Hourly time signal on indicator
2. Press A to toggle it on and off.
•
The Hourly Time Signal on indicator is shown on the display in all
modes while this function is turned on.

Illumination

An LED (light-emitting diode) illuminates the face of the watch for easy reading
Auto light switch
in the dark. The watch's auto light switch turns on illumination automatically
on indicator
when you angle the watch towards your face.
•
The auto light switch must be turned on (indicated by the auto light switch
on indicator) for it to operate.
• See "Illumination Precautions" for other important information about using
illumination.
To illuminate the display manually
In any mode (except a setting mode), press B to turn on the illumination for
about one second.
•
The above operation turns on illumination regardless of the current auto light
switch setting.
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on, whenever you position your wrist as
described below in any mode.
Note that this watch features a "Full Auto LED Light", so the auto light switch operates only when available
light is below a certain level. It does not illuminate the display under bright light.
• The auto light switch is always disabled, regardless of its on/off setting, when any one of the following
conditions exists.
− While an alarm is sounding
While a signal receive operation is in progress
−
Moving the watch to a position that is parallel to the ground and then tilting it towards you more than
40 degrees causes illumination to turn on.
• Wear the watch on the outside of your wrist.
Parallel to
ground
Operation Guide 5129 (OC)
AL1 , AL2 , AL3 and AL4
D to scroll through the alarm screens until the one
AL1 , AL2 , AL3 or
D to select an alarm.
AL1 , AL2 , AL3 , AL4 or SNZ )
D to select the Hourly Time Signal ( SIG ).
More than 40°
Warning!
•
Always make sure you are in a safe place whenever you are reading the display of the watch
using the auto light switch. Be especially careful when running or engaged in any other activity
that can result in accident or injury.
Also take care that sudden illumination by the auto light switch does not startle or distract
others around you.
• When you are wearing the watch, make sure that its auto light switch is turned off before riding a
bicycle or operating a motorcycle or any other motor vehicle. Sudden and unintended operation
of the auto light switch can create a distraction, which can result in a traffic accident and serious
personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down B for about three seconds to toggle the auto light switch on (auto
light switch on indicator displayed) and off (auto light switch on indicator not displayed).
• The auto light switch on indicator is on the display in all modes while the auto light switch is turned on.

Power Supply

This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is
charged by the electrical power produced by the solar cell. The illustration shown below shows how you
should position the watch for charging.
Solar cell
Important!
•
Storing the watch for long periods in an area where there is no light or wearing it in such a way that it
is blocked from exposure to light can cause rechargeable battery power to run down. Be sure that the
watch is exposed to bright light whenever possible.
• This watch uses a special rechargeable battery to store power produced by the solar cell, so regular
battery replacement is not required. However, after very long use, the rechargeable battery may lose
its ability to achieve a full charge. If you experience problems getting the special rechargeable battery
to charge fully, contact your dealer or CASIO distributor about having it replaced.
• Never try to remove or replace the watch's special battery yourself. Use of the wrong type of battery
can damage the watch.
• All data stored in memory is deleted, and the current time and all other settings return to their initial
factory defaults whenever battery power drops to Level 5 (C: Charge) and when you have the battery
replaced.
• Turn on the watch's Power Saving function and keep it in an area normally exposed to bright light when
storing it for long periods. This helps to keep the rechargeable battery from going dead.
Battery Power Indicator and Power Recovery Mode indicator
The battery power indicator indicates you the current status of the rechargeable battery's power.
Battery Power indicator Level
1 (H)
2 (M)
3 (L)
4 (C: Charge)
5 (C: Charge)
• The flashing LOW indicator at Level 3 (L) tells you that battery power is very low, and that exposure
to bright light for charging is required as soon as possible.
• At Level 5 ( C: Charge), all functions are disabled and settings return to their initial factory defaults.
Once the battery reaches Level 2 (M) after falling to Level 5 (C: Charge), reconfigure the current time,
date, and other settings.
• Display indicators reappear as soon as the battery is charged from Level 5 (
•
The watch's Home City code setting will change automatically to
drops to Level 5 (C: Charge). With this Home City code setting, the watch is configured to receive the
time calibration signals of Japan. If you are using the watch in North America or Europe, or China you
will need to change the Home City code setting to match your location whenever the battery drops to
Level 5 (C: Charge).
•
Leaving the watch exposed to direct sunlight or some other very strong light source can cause the
battery power indicator to show a reading temporarily that is higher than the actual battery level. The
correct battery level should be indicated after a few minutes.
• Overuse of display illumination or the beeper can cause the
Power recovery
indicator to appear in the upper display, which indicates that the watch
mode indicator
is in the battery power recovery mode. Face illumination, the alarm, the
countdown timer alarm, time signals, and all hand operations are disabled in
the power recovery mode.
The watch continues to keep time internally, so regular timekeeping and
function will resume as soon as battery power recovers to normal levels,
which is indicated when the R indicator disappears.
•
If R appears frequently, it probably means that remaining battery power is
low. Leave the watch in bright light for some time to allow it to charge.
Example:
Orient the watch so its face is pointing at a light source.
• The illustration shows how to position a watch with a
resin band.
• Note that charging efficiency drops when any part of the
solar cell is blocked by clothing, etc.
•
You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly
if the face is even only partially covered.
Battery Power Indicator Function Status
All functions enabled
All functions enabled
Auto and manual receive,
illumination, and beeper disabled
(Charge Soon Alert)
Except for timekeeping, all functions
and display indicators disabled
All functions disabled
C: Charge) to Level 2 (M).
TYO (Tokyo) whenever the battery
R (Recover)
4