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.

General Guide

• Press C to change from mode to mode.

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

the face of the watch.

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.

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

▲

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

Time zone

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”.

1. In the Timekeeping Mode, hold down B for about five

seconds until the currently selected time zone appears

on the display. This is the setting screen.

• The GMT differential value indicates the time

difference in hours between Greenwich Mean Time and the currently selected time zone.

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

your Home 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

London, Dublin, Lisbon Paris, Milan, Rome, Madrid,Amsterdam,

Hamburg, Berlin, Frankfurt, Vienna, Stockholm

Athens, Helsinki

Home Position

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.

• 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 among buildings

• 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

• 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.

Inside a vehicle

1,500 kilometers

Rugby

500 kilometers

Near household appliances or office equipment, or a mobile phone

Alarm Mode

12 o’clock

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

Near hightension power lines

Mainflingen

▲

Among or behind mountains

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

Standard Time

+ 0

Daylight Saving Time

Standard Time

+ 1

Daylight Saving Time

Standard Time

+ 2

Daylight Saving Time

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

• 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

Receive successful

Receive failed

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

1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight

2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am

3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am

3:00 am 4:00 am 5:00 am

4:00 am 5:00 am

Weak

(Level 0)

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 B for about two seconds until flash on the display.

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

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

• When receive is unsuccessful, the display shows “

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

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 “

• To return to the Timekeeping Mode, press C.

• If you adjust the time or date setting manually, the

display shows “

Auto Receive Start Times

1234 5 6

next day

next day next day

Midnight

1:00 am 2:00 am next day next day

Midnight

1:00 am 2:00 am 3:00 am next day next day next day

Strong

(Level 3)

R0 starts to

xx”.

Signal Reception Troubleshooting

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

Cannot perform manual receive.

Auto receive is not being performed successfully (“

xx”

displayed).

Time setting is incorrect following signal reception.

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

• The watch is not in the Receive Result Mode.

• Your current Home Time Zone setting is not one of the following: +0, +1 or +2.

• You changed the time setting manually.

• You were adjusting the watch settings when the auto receive start times were reached.

• You pressed any button while signal receive was in progress.

• The Home Time Zone setting is not correct for the area where you are using the watch.

• The home position of the hands is off.

What you should doProblem Probable Cause

• Enter the Receive Result Mode and try again.

• Select +0, +1 or +2 as your Home Time Zone.

• Perform manual signal receive or wait until the next auto signal receive operation is performed.

• Check to make sure the watch is in a location where it can receive the signal.

• Select the correct Home Time Zone.

• Enter the Home Position Adjustment Mode and adjust the home position.

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.

Alarm on indicator

To set the alarm time

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. Press C to 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. (

4. Press B to 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 C to 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.

Hourly time signal on indicator

Alarm time (Hour)

Alarm time (Minutes)

indicator) or p.m. ( indicator).

Alarm On Indicator / Hourly Time Signal On Indicator

Signal Off Alarm Off

• 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.

Signal Off Alarm On

Signal On Alarm Off

Signal On Alarm 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

Correct analog hand home position

• Holding down A for more than two seconds causes the second hand to move continually at high speed. Press A again 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 B exits the home position adjustment.

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

position adjustment.

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

(home position).

• Each press of A advances the second hand by one

second.

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