Manual Casio Radio Controlled WVA-M650D-2AER Watch

Manual

Operation Guide 5110

E-40

Alarms

When an alarm is turned on, the alarm tone will sound

when its alarm time 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 fi ve alarm screens numbered

AL1

,

AL2

,

AL3

and

AL4

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

(page E-9).

Alarm time

(Hour : Minutes)

Alarm number

E-41

To set an alarm time

1. In the Alarm Mode, use

D

to scroll through the alarm

screens until the one whose time you want to set is

displayed.

• To set a one-time alarm, display alarm screen AL1,

AL2, AL3 or AL4. To set the snooze alarm, display

the SNZ screen.

• SIG is the hourly time signal setting (page E-44).

• The snooze alarm repeats every fi ve minutes.

2. After you select an alarm, hold down

A

for about three seconds until the hour

setting of the alarm time starts to fl ash. This is the setting mode.

• This operation turns on the alarm automatically.

3. Press

C

to move the fl ashing between the hour and minute settings.

E-42

4. While a setting is fl ashing, 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 fi ve minutes, or until you turn the alarm off (page E-43).

• 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 (page E-58)

Displaying the

SNZ

setting screen (page E-41)

E-43

To turn an alarm on and off

1. In the Alarm Mode, use

D

to select an alarm.

2. Press

A

to toggle it on and off.

• Turning on a alarm (

AL1

,

AL2

,

AL3

,

AL4

or

SNZ

)

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 fl ashes while the alarm is

sounding.

• The snooze alarm indicator fl ashes while the snooze

alarm is sounding and during the 5-minute intervals

between alarms.

Alarm on

indicator

ON

Snooze alarm indicator

E-44

To turn the Hourly Time Signal on and off

1. In the Alarm Mode, use

D

to select the Hourly Time

Signal (

SIG

) (page E-41).

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.

Hourly time signal

on indicator

E-45

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 turned on (indicated by

the auto light switch on indicator) for it to operate.

• See “Illumination Precautions” (page E-73) 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.

Auto light switch

on indicator

E-46

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

E-47

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

More than

40°

E-48

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 traffi c 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.

E-49

Power Supply

This watch is equipped with a solar panel and a special rechargeable battery

(secondary battery) that is charged by the electrical power produced by the solar

panel. The illustration shown below shows how you should position the watch for

charging.

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 effi ciency drops

when any part of the solar panel is

blocked by clothing, etc.

• You should try to keep the watch

outside of your sleeve as much as

possible. Charging is reduced

signifi cantly if the face is even only

partially covered.

Solar panel

Rating

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