Casio MO0907-EA, 4739 User Manual

MO0907-EA

Operation Guide 4739

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.

Keep the watch exposed to bright light

Bright Light

Solar cell

• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will result in some watch functions to be disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, be sure to keep it exposed to light as much as possible.

Battery charges in the light. Battery discharges in the dark.

Solar cell (Converts light to electrical power.)

The electricity generated by the solar cell of the watch is stored by a built-in battery. Leaving or using the watch

where it is not exposed to light causes the battery to run down. Make sure the watch is exposed to light as much as possible.

• When you are not wearing the watch on your wrist, position the face so it is pointed at a source of bright light.

• You should try to keep the watch outside of your sleeve as much as possible. Charging is reduced significantly if the face is only partially covered.

Bright Light

Electrical energy

All

LEVEL 1

functions

LEVEL 2

enabled

LEVEL 3

Charge

LEVEL 4

Rechargeable battery

Dis-

charge

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Some or all functions disabled

• The actual level at which some functions are disabled depends on the watch model.

• Frequent display illumination can run down the battery quickly and require charging.

The following guidelines give an idea of the charging time required to recover from a single illumination operation.

Approximately 5 minutes exposure to bright sunlight coming in through a window

Approximately 50 minutes exposure to indoor fluorescent lighting

• Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function has turned off the display to conserve power.

• See “Power Saving Function” for more information.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.

About This Manual

• Depending on the model of your watch, display text appears either as dark figures on a light background, or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background.

• Button operations are indicated using the letters shown in the illustration.

• Most of the display examples in this manual show only the digital display, without the analog hands.

• Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

General Guide

• Press C to change from mode to mode.

• In any mode (except when a setting screen is on the display), press B to illuminate

the face of the watch.

Timekeeping Mode

Battery Level Indicator

Press C.

▲

World Time Mode

▲

Radio-controlled Atomic Timekeeping

Hour hand

Minute hand

Month Day

• When using the watch outside the areas covered by the time signal transmitters, you will have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time settings.

• The U.S. time calibration signal can be picked up by the watch while in North America. The term “North America” in this manual refers to the area that consists of Canada, the continental United States, and Mexico.

• The analog time of this watch is synchronized with the digital time. Because of this, the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.

To specify your Home City

City code

German/U.K. Signal Japan Signal U.S. Signal

City

Code

Name

LIS

Lisbon

LON

London

MAD

Madrid

PAR

Pari s

ROM

Rome

BER

Berlin

STO

Stockholm

3. Press A to exit the setting screen.

This watch receives a time calibration signal and updates its time setting accordingly.

• Supported time calibration signals: Germany (Mainflingen), England (Anthorn), United States (Fort Collins), Japan.

Current Time Setting

This watch adjusts its time setting automatically in accordance with a time calibration signal. You can also perform a manual procedure to set the time and date, when necessary.

• The first thing you should do after purchasing this watch is to specify your Home City (the city where you normally will use the watch). For more information, see “To specify your Home City”.

1. In the Timekeeping Mode, hold down A the city code

starts to flash. This is the setting screen.

2. Press D(east) to select the city code you want to use

as your Home City.

• Time calibration signal reception is supported when

City Code ATH MOW

any one of the city codes shown in the table below is selected as your Home City.

City Name

Athens Moscow

City Code HKG BJS TPE SEL TYO

City Name

Hong Kong Beijing Taipei Seoul Tokyo

City Code HNL ANC YVR LAX YEA DEN MEX

City Name

Honolulu Anchorage Vancouver Los Angeles Edmonton Denver Mexico City

City Code YWG CHI MIA YTO NYC YHZ YYT

City Name

Winnipeg Chicago Miami Toronto New York Halifax St. Johns

Stopwatch ModeCountdown Timer Mode

▲

Hand Setting Mode

▲

Important!

• Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You can also perform manual receive or you can set the time manually.

• The watch will receive the time calibration signal automatically from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between city codes and transmitters, see “Home City Codes and Transmitters”.

• Under factory default settings, auto receive is turned off for all of the following city codes: MOW (Moscow), HKG (Hong Kong), BJS (Beijing), HNL (Honolulu), and ANC (Anchorage). For details about turning on auto receive for these city codes, see “To turn auto receive on and off”.

• You can disable time signal reception, if you want. See “To turn auto receive on and off” for more information.

• See the maps under “Approximate Reception Ranges” for information about the reception ranges of the watch.

• If you are in an area that does not use Daylight Saving Time (summertime), turn off the DST setting.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.

• Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. For more information, see “About Auto Receive”.

• Manual Receive

Manual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.

Important!

• The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing towards a window as shown in the nearby illustration. Make sure there are no metal objects nearby.

• Make sure the watch is facing the right way.

▲

Alarm Mode

▲

12 o’clock

Operation Guide 4739

• Proper signal reception can be difficult or even impossible under the conditions listed below.

Inside or among buildings

• Signal reception normally is better at night than during the day.

• Time calibration signal reception takes from two to seven minutes, but in some

cases it can take as long as 14 minutes. Take care that you do not perform any button operations or move the watch during this time.

• The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below. If you use the watch in Japan or Europe (each of which has two different transmitter locations), it will try to receive the time calibration signal from one of the transmitters in your current location. If it cannot receive the signal, it will then try to receive the time calibration signal from the other transmitter.

Inside a vehicle

Near household appliances, office equipment, or a mobile phone

Near a construction site, airport, or other sources of electrical noise

Near hightension power lines

Among or behind mountains

Home City Codes and Transmitters

Home City Code

LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW*

HKG*, BJS*, TPE, SEL, TYO

HNL*, ANC*, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, YYT

* The areas covered by the MOW, HKG, BJS, HNL, and ANC city codes are quite

far from the time calibration signal transmitters, and so certain conditions may cause problems with signal reception.

Transmitter

Anthorn (England) Mainflingen (Germany)

Fukushima (Japan) Fukuoka/Saga (Japan)

Fort Collins, Colorado (the United States)

Frequency

60.0 kHz

77.5 kHz

40.0 kHz

60.0 kHz

Approximate Reception Ranges

UK and German Signals

Anthorn

500 kilometers

1,500 kilometers

The Anthorn signal is receivable within this area

Signals are receivable in the Taiwan area when reception conditions are good.

• Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference may also cause problems with reception.

Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles) Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)

• Even when the watch is within the reception range of the transmitter, signal reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

• Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

• See the information under “Signal Reception Troubleshooting” if you experience problems with time calibration signal reception.

About Auto Receive

The watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. The reception schedule (calibration times) depends on your currently selected Home City, and whether standard time or Daylight Saving Time is selected for your Home City.

Your Home City Auto Receive Start Times

LIS, LON

MAD, PAR, ROM, BER, STO

ATH

MOW

HKG, BJS, TPE, SEL, TYO

HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, YYT

Standard Time

Daylight Saving Time

Standard Time

Daylight Saving Time

Standard Time

Daylight Saving Time

Standard Time

Daylight Saving Time

Standard Time

Standard Time Daylight

Saving Time

Mainflingen

Japanese Signals

500 kilometers

Fukuoka/Saga

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

Midnight

North American Signal

2,000 miles (3,000 kilometers)

600 miles (1,000 kilometers)

Fort Collins

Fukushima

1,000 kilometers

123456

2:00 am

3:00 am

4:00 am

5:00 am

Midnight

3:00 am

4:00 am

5:00 am

Midnight next day

1:00 am

4:00 am

5:00 am

Midnight next day

1:00 am next day

2:00 am

5:00 am

Midnight next day

1:00 am next day

2:00 am next day

3:00 am

Midnight next day

1:00 am next day

2:00 am next day

3:00 am next day

4:00 am

next day 1:00 am

next day 2:00 am

next day 3:00 am

next day 4:00 am

next day 5:00 am

5:00 am

Note

• When a calibration time is reached, the watch will receive the calibration signal only if it is in either the Timekeeping Mode or World Time Mode. Reception is not performed if a calibration time is reached while you are configuring settings.

• Auto receive of the calibration signal is designed to be performed early in the morning, while you sleep (provided that the Timekeeping Mode time is set correctly). Before going to bed for the night, remove the watch from your wrist, and put it in a location where it can receive the signal easily.

• The watch receives the calibration signal for two to 14 minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. Avoid performing any button operation within 14 minutes before or after any one of the calibration times. Doing so can interfere with correct calibration.

• Remember that reception of the calibration signal depends on the current time in the Timekeeping Mode. The receive operation will be performed whenever the display shows any one of the calibration times, regardless of whether or not the displayed time actually is the correct time.

• Calibration signal reception is disabled while a countdown timer operation is in progress.

About the Receiving Indicator

The receiving indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest.

Receiving indicator

Weak

(Level 0)

• Use the receiving indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.

• Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the receiving indicator to indicate signal strength.

To perform manual receive

Receiving

Receiving indicator

Receive successful

Receive failed

To turn auto receive on and off

On/Off status

To check the latest signal reception results

Receive date

Receive time

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

Problem

Cannot perform manual receive.

Time setting is incorrect following signal reception.

• For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlled Atomic Timekeeping Precautions”.

1. Enter the Timekeeping Mode.

2. Place the watch on a stable surface so its 12 o’clock side is facing towards a window.

3. Hold down D for about two seconds until the receiving indicator appears on the display.

• Time calibration signal reception takes from two to 14

minutes. Take care that you do not perform any button operations or move the watch during this time.

• If the receive operation is successful, the reception date

and time appear on the display, along with the GET indicator. The watch will enter the Timekeeping Mode if you press D or if you do not perform any button operation for about one or two minutes.

Receive date

Receive time

• If the current reception fails, the display shows the ERR

indicator. The watch will enter the Timekeeping Mode without changing the time setting if you press D or if you do not perform any button operation for about one or two minutes.

1. In the Timekeeping Mode, press D to display the Last Signal screen.

2. Hold down A until the current auto receive setting (ON

•

• Your current Home City is not one of the

• If the time is one hour off, the DST

• The Home City code setting is not

or OFF) start to flash. This is the setting screen.

• Note that the setting screen will not appear if the

currently selected Home City is one that does not

The watch is not in the Timekeeping Mode.

following:

LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT

setting may be incorrect.

correct for the area where you are using the watch.

support time calibration reception.

3. Press D to toggle auto receive on (ON) and off (OFF).

4. Press A to exit the setting screen.

• For information about city codes that support signal

receive, see “To specify your Home City”.

In the Timekeeping Mode, press D to display the Last Signal screen.

• When receive is successful, the display shows the time

and date that receive was successful. - - : - - indicates that none of the reception operations were successful.

• To return to the Timekeeping Mode, press D.

Probable Cause

• Enter the Timekeeping Mode

• Select LIS, LON, MAD, PAR,

• Change the DST setting to

• Select the correct Home City

and try again.

ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT as

your Home City.

Auto DST.

code.

Strong

(Level 3)

What you should do

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