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Alarm Types; Alarm Operation - Casio 3420 Operation Manual

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Operation Guide 3420
3. When the setting you want to change is fl ashing, use B and D to change it as
described below.
Setting
Screen
Use D (+) and B (–) to change the setting.
Hours, Minutes
Press D to toggle auto-repeat on (
Auto-repeat
off (
displayed)
Press D to toggle the progress beeper on (
Progress Beeper
off (
).
To specify a countdown start time of 24 hours, set
4. Press A to exit the setting screen.
You can also perform steps 1 and 2 of the above procedure whenever you need to
view the current auto-repeat and progress beeper settings.
E-20
Alarms
You can set up to three independent multi-function alarms
Alarm number
with hour, minutes, month, and day. When an alarm is
turned on, the alarm tone sounds when the alarm time is
reached. One of the alarms is a snooze alarm, while the
other two are one-time alarms.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
There are three alarm screens numbered
for the one-time alarm, a snooze alarm screen indicated
by
. The Hourly Time Signal screen is indicated
Alarm time
by
.
All of the operations in this section are performed in the
(Hour : Minutes)
Alarm Mode, which you enter by pressing C (page E-5).
Alarm date
(Month – Day)
E-22
To set an alarm time
1. In the Alarm Mode, use D or B to scroll through the
alarm screens until the one whose time you want to set
is displayed.
To set a one-time alarm, display an alarm screen
alarm, display the
screen.
The snooze alarm repeats every fi ve minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to fl ash, which indicates the setting screen.
This operation turns on the alarm automatically.
E-24

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the watch's
current mode. In the case of the snooze alarm, the alarm operation is performed a
total of seven times, every fi ve minutes, until you turn the alarm off (page E-27).
Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode time.
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 operation.
Displaying the Timekeeping Mode setting screen (page E-7)
Displaying the
setting screen (page E-24)
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
E-26
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D or B to select the Hourly
Time Signal (
2. Press A to toggle it on and off.
The Hourly Time Signal on indicator (
the display in all modes while this function is turned on.
Hourly time signal on
indicator
E-28
Button Operation
displayed) and
) and
.
and
or
. To set the snooze
).
) is shown on
To use the countdown timer
Press D while in the Countdown Timer Mode to start the
countdown timer.
The countdown timer operation continues even if you exit
the Countdown Timer Mode.
Press D while a countdown operation is in progress to
pause it. Press D again to resume the countdown.
To stop a countdown operation completely, fi rst pause
it (by pressing D), and then press B. This returns the
countdown time to its starting value.

Alarm Types

The alarm type is determined by the settings you make, as described below.
Daily alarm
Set the hour and minutes for the alarm time. This type of setting causes the alarm to
sound everyday at the time you set.
Date alarm
Set the month, day, hour and minutes for the alarm time. This type of setting causes
the alarm to sound at the specifi c time, on the specifi c date you set.
1-Month alarm
Set the month, hour and minutes for the alarm time. This type of setting causes the
alarm to sound everyday at the time you set, only during the month you set.
Monthly alarm
Set the day, hour and minutes for the alarm time. This type of setting causes the
alarm to sound every month at the time you set, on the day you set.
3. Press C to move the fl ashing in the sequence shown below to select other
settings.
C
Hour
Minutes
C
4. While a setting is fl ashing, use D and B to change it as described below.
Screen
To do this:
Do this:
Use D (+) and B (–).
Change the hour and
minutes
Change the month and day
5. Press A to exit the setting screen.
To turn an alarm on and off
1. In the Alarm Mode, use D or B to select an alarm.
2. Press A to toggle it on and off.
Turning on a alarm (
alarm on indicator (
In all modes, the alarm on indicator is shown for any
alarm that is currently turned on.
The alarm on indicator fl ashes while the alarm is
sounding.
Alarm on indicator
The snooze indicator (
sounding and during the 5-minute intervals between
Snooze indicator
alarms.
Illumination
An LED (light-emitting diode) illuminates the face of the
watch for easy reading in the dark. The watch's auto light
switch turns on illumination automatically when you angle
the watch towards your face.
The auto light switch must be enabled (indicated by the
auto light switch on indicator) for it to operate.
See "Illumination Precautions" (page E-39) for other important
information about using illumination.
To illuminate the display manually
Auto light switch on
In any mode, press L to turn on illumination.
indicator
The above operation turns on illumination regardless of
the current auto light switch setting.
E-21
E-23
C
C
Month
Day
With the 12-hour format, set the time correctly
as a.m. or p.m. (P indicator).
To set an alarm that does not include a month
and/or day, set
for each setting.
E-25
,
, or
) displays the
) on its Alarm Mode screen.
) fl ashes while the snooze is
E-27
E-29

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