Casio MO0611-EA, 4757 User Manual

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Casio MO0611-EA, 4757 User Manual

MO0611-EA

Operation Guide 4757

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.

If all the analog hands are stopped at 12 o’clock...

To conserve battery power, the watch is shipped from the factory with its functions disabled. All the watch’s analog hands are stopped at 12 o’clock, and the digital display alternates between the hour and minute. To activate the watch’s functions, press any one of the three buttons. This will cause the analog hands to move to the current time setting.

General Guide

Press Cto change from mode to mode.

In any mode (except when a setting screen is on the display), press Ato illuminate the face of the watch.

Timekeeping Mode

Press C.

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly. The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.

This watch is designed to pick up the time calibration signal transmitted from Mainflingen, Germany and the signal from Rugby, England.

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 Time Zone, which is the time zone where you will normally use the watch. For more information, see “To specify your Home Time Zone” below.

When using the watch outside the range of the time signal transmitter, you will have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time settings.

To specify your Home Time Zone

 

 

 

 

 

 

 

 

1. In the Timekeeping Mode, hold down Bfor about five

 

 

 

 

 

 

 

 

 

seconds until the currently selected time zone appears

 

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on the display. This is the setting screen.

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The GMT differential value indicates the time

 

 

 

 

 

 

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difference in hours between Greenwich Mean Time

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and the currently selected time zone.

 

 

 

 

 

 

2. Press Ato select the time zone you want to use as

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

your Home Time Zone.

Time zone

 

 

 

 

 

 

The following are the GMT differential values for major

 

 

 

 

 

 

cities in the Western Europe time zones.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Time Zone

Major cities in time zone

 

 

 

 

 

 

 

 

 

+0

London, Dublin, Lisbon

 

 

 

 

 

 

 

 

 

+1

Paris, Milan, Rome, Madrid,Amsterdam,

 

 

 

 

 

 

 

 

 

Hamburg, Berlin, Frankfurt, Vienna,

 

 

 

 

 

 

 

 

 

 

Stockholm

 

 

 

 

 

 

 

 

 

+2

Athens, Helsinki

3. Press B to exit the setting screen.

The watch will also return to the Timekeeping Mode if you do not perform any operation for two or three minutes.

Your watch should show the correct time when you exit the Home Time Zone setting screen. While the hands are moving to the new time setting, the current time will be shown on the digital display. 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.

Even if the time calibration signal is received correctly, there are some times when the analog hands may not indicate the correct time. If this happens, use the procedures under “Adjusting the Home Positions” to check the home positions of the hands, and make adjustments as required.

See the map under “Reception Ranges” for information about the reception ranges of the watch.

You can disable time signal reception, if you want. See “To set the time and date manually” for more information.

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”.

About This Manual

Minute hand Hour hand

Second hand

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

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

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.

Receive Result Mode

 

 

Home Position

Alarm Mode

Adjustment Mode

Important!

When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. Make sure there are no metal objects nearby.

12 o’clock

or

Make sure the watch is facing the right way.

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

Inside or

Inside a

Near

Near a

Near high-

Among or

among

vehicle

household

construction

tension

behind

buildings

 

appliances or

site, airport, or

power lines

mountains

 

 

office

other sources

 

 

 

 

equipment,

of electrical

 

 

 

 

or a mobile

noise

 

 

 

 

phone

 

 

 

Signal reception is normally 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.

When within range of the applicable transmitter, this watch can receive either the Germany (Mainflingen) or England (Rugby) time calibration signals.

See “Transmitters” for more information.

Reception Ranges

1,500 kilometers

 

Rugby

 

500 kilometers

Mainflingen

 

At distances further than about 500 kilometers from a transmitter, signal reception may not be possible during certain times of year or times of day. Radio interference may also cause problems with reception.

Even when the watch is within the reception range of the transmitter, signal reception is 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.

1

Receive successful
Receive failed

Operation Guide 4757

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 Time Zone, and whether Standard Time or Daylight Saving Time is selected for your Time Zone.

Note

Auto receive is turned on whenever +0, +1, or +2 is selected as the Home Time Zone.

 

Your Time Zone

 

 

Auto Receive Start Times

 

 

 

 

1

2

 

3

4

5

6

 

 

Standard Time

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

Midnight

+ 0

 

 

 

 

 

 

 

 

 

 

Daylight Saving

2:00 am

3:00 am

4:00 am

5:00 am

Midnight

1:00 am

 

 

 

 

Time

 

 

 

 

 

 

next day

 

 

 

 

 

 

 

 

 

 

 

Standard Time

2:00 am

3:00 am

4:00 am

5:00 am

Midnight

1:00 am

+ 1

 

 

 

 

 

 

 

 

next day

 

 

 

 

 

 

 

 

 

 

Daylight Saving

3:00 am

4:00 am

5:00 am

Midnight

1:00 am

2:00 am

 

 

 

 

Time

 

 

 

 

 

next day

next day

 

 

Standard Time

3:00 am

4:00 am

5:00 am

Midnight

1:00 am

2:00 am

+ 2

 

 

 

 

 

 

 

next day

next day

 

 

 

 

 

 

 

 

 

 

Daylight Saving

4:00 am

5:00 am

Midnight

1:00 am

2:00 am

3:00 am

 

 

 

 

Time

 

 

 

 

next day

next day

next day

 

 

 

 

 

 

 

 

 

 

Note

Auto receive works only while the watch is in the Timekeeping Mode. Auto receive is not performed if an auto receive time is reached while an alarm is sounding, or if a setting screen (a screen with a flashing setting) is on the display.

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.

When auto receive is turned on, 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.

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. The receiving indicator is displayed while an auto or manual receive operation is in progress.

Receiving indicator

Weak

 

Strong

 

(Level 0)

 

(Level 3)

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

To perform manual receive

Receiving

 

 

1. Enter the Receive Result Mode.

 

 

2. Place the watch on a stable surface so its top (12

 

 

 

 

 

 

o’clock side) is facing towards a window.

 

 

 

3. Hold down Bfor about two seconds until R0 starts to

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flash on the display.

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The second hand will move to 12 o’clock and stay there

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while actual reception is in progress.

The hour and minute hands stop while signal reception is in progress.

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.

After successful calibration signal reception is complete, the hands will start moving to the correct setting. While they are moving, the current time will be shown on the digital display. After the hands reach the correct setting, the digital display will switch to the time that signal reception was successful.

The watch will enter the Timekeeping Mode if you press

Cor if you do not perform any button operation for one or two minutes.

When receive is unsuccessful, the display shows “xx”. The watch will enter the Timekeeping Mode without changing the time setting if you press Cor if you do not perform any button operation for about one or two minutes.

Note

To interrupt a receive operation and return to the Receive Result Mode, press any button.

Viewing the Latest Signal Reception Results

You can use the Receive Result Mode to check if signal reception was performed correctly.

To check the latest signal reception results

Enter the Receive Result Mode.

When receive is successful, the display shows the time that receive was successful. When receive is not

successful, the display shows “xx”.

To return to the Timekeeping Mode, press C.

If you adjust the time or date setting manually, the display shows “xx”.

Signal Reception Troubleshooting

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

Problem

Probable Cause

What you should do

Cannot

The watch is not in the Receive

Enter the Receive Result

perform

Result Mode.

Mode and try again.

manual

Your current Home Time Zone

Select +0, +1 or +2 as your

receive.

setting is not one of the following:

Home Time Zone.

 

+0, +1 or +2.

 

Auto receive

You changed the time setting

Perform manual signal

is not being

manually.

receive or wait until the next

performed

You were adjusting the watch

auto signal receive operation

successfully

settings when the auto receive start

is performed.

(“xx

times were reached.

Check to make sure the

displayed).

You pressed any button while signal

watch is in a location where it

 

receive was in progress.

can receive the signal.

Time setting

The Home Time Zone setting is not

Select the correct Home

is incorrect

correct for the area where you are

Time Zone.

following

using the watch.

Enter the Home Position

signal

The home position of the hands is

Adjustment Mode and adjust

reception.

off.

the home position.

 

 

 

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

Alarm

When the alarm is turned on, the alarm sounds when the alarm time is reached. You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour.

All of the operations in this section are performed in the Alarm Mode, which you enter by pressing C.

Hourly time signal

on indicator

Alarm on

indicator Alarm time (Hour)

Alarm time (Minutes)

To set the alarm time

1.In the Alarm Mode, hold down Buntil the hour setting of the alarm time starts to flash, which indicates the setting screen.

This operation automatically turns on the alarm.

2.Press Cto move the flashing between the hour and minute settings.

3.While a setting is flashing, use A(+) to change it.

Take care to set the time correctly as a.m. ( indicator) or p.m. ( indicator).

4.Press Bto exit the setting screen.

Alarm Operation

The alarm sounds at the preset time for about 10 seconds, regardless of the mode the watch is in.

To stop the alarm tone after it starts to sound, press any button.

To test the alarm

1.In the Alarm Mode, hold down B until the hour setting of the alarm time starts to

flash, which indicates the setting screen.

This operation automatically turns on the alarm.

2.Hold down Cto sound the alarm.

3.Press B to exit the setting screen.

To turn the Daily alarm and the Hourly Time Signal on and off

In the Alarm Mode, press B to cycle through the settings shown below.

Alarm On Indicator / Hourly Time Signal On Indicator

Signal Off

Signal Off

Signal On

Signal On

Alarm Off

Alarm On

Alarm Off

Alarm On

The alarm on indicator and the Hourly Time Signal on indicator are shown on the display in all modes while these functions are turned on.

Adjusting the Home Positions

If the time and date settings are wrong even after the time calibration signal is received normally, use the following procedure to adjust their home positions.

To adjust the home positions

12 o’clock

 

 

1. In the Timekeeping Mode, press C three times to enter

 

 

the Home Position Adjustment Mode.

 

 

 

 

 

2. Hold down B for about five seconds.

 

 

 

 

 

The analog hands do not keep time during home

 

 

 

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position adjustment.

 

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3. Use A to align all of the analog hands with 12 o’clock

 

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(home position).

 

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II

 

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Each press of Aadvances the second hand by one

 

 

 

 

 

second.

Correct analog hand home position

Holding down Afor more than two seconds causes the second hand to move continually at high speed. Press Aagain to stop high-speed hand movement at a

point that is just before 12 o’clock. Next, complete home position adjustment by pressing A as many times as necessary to align the hands with 12 o’clock.

High-speed hand movement will stop automatically if the hands complete a 12hour cycle.

4.Pressing Bexits the home position adjustment.

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