Casio MO0503-EA User Manual

MO0503-EA

Operation Guide 3723 3724

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 and keep it on hand for later reference when necessary.

Keep the watch exposed to bright light

Bright light

• 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 cause 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.)

Charge

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,

Solar cell

Rechargeable battery

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. Even if the face of the watch is only partially blocked from light, charging will be reduced significantly.

Bright light

LEVEL 1

LEVEL 2

LEVEL 3

Electrical energy

All functions enabled

charge

Dis-

LEVEL 1

LEVEL 2

LEVEL 3

Some 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 analog hands aren’t moving...

If the analog hands aren’t moving, it means that the power saving mode has stopped them to save battery power.

• See “Power Saving” for more information.

About This Manual

Minute hand

Hour hand

Second hand

• 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.

Date

General Guide

• Press B to change from mode to mode.

• In the Timekeeping Mode, press A to illuminate the face of the watch.

Timekeeping Mode Receive Result Mode

Press B.

▲

Radio-controlled 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 in Germany (Mainflingen) and England (Rugby).

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 Germany and England time signal transmitters, you 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

GMT differential value (+0)

GMT differential value (+1)

• Normally, your watch should show the correct time as soon as you specify your Home Time Zone. 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.

• 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 time zones (GMT differential values) and transmitters, see “Transmitters”.

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

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

seconds until the second hand moves to the currently selected GMT differential value and stops. This is the setting mode.

• The GMT differential value indicates the time difference in hours between Greenwich Mean Time and the currently selected time zone.

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

your Home Time Zone.

GMT+ 0 (12 o’clock): London GMT+ 1 (1 o’clock): Paris, Berlin, Milan, Rome,

Amsterdam, Hamburg, Frankfurt, Vienna, Barcelona, Madrid

3. Press A eight times to exit the setting mode.

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

Home Position

▲

9 o’clock

Adjustment Mode

Near hightension power lines

Among or behind mountains

Alarm Mode

▲

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!

• When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 9 o’clock side facing towards a window. Make sure there are no metal objects nearby.

• The watch should not be facing the wrong 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.

Inside a vehicle

Near household appliances, office equipment, or a mobile phone

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

Operation Guide 3723 3724

Reception Ranges

1,500 kilometers

Rugby

500 kilometers

• Under good reception conditions, signal reception is possible within a radius of about 1,500 kilometers from a transmitter.

• 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 interferance may also cause problems with reception.

• 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 Time Zone, and whether standard time or Daylight Saving Time is selected for your Home Time Zone.

Your Home Time Zone Auto Receive Start Times

GMT +0 Standard Time 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am Midnight

Daylight 2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am Saving Time next day

GMT +1 Standard Time 2:00 am 3:00 am 4:00 am 5:00 am Midnight 1:00 am

Daylight 3:00 am 4:00 am 5:00 am Midnight 1:00 am 2:00 am Saving Time next day next day

Note

• The auto receive operation is performed only if the watch is in the Timekeeping Mode when one of the calibration times is reached. It is not performed if a calibration time is reached while an alarm is sounding, or while you are configuring settings.

• Auto receipt 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 seven minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. Do not perform any button operation within seven 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 is actually the correct time.

To perform manual receive

READY

WORK

N (No)

Y (Yes)

Note

• To interrupt a receive operation and return to the Timekeeping Mode, press any button.

• If reception is not successful, the second hand will move to N (No). One or two minutes later, the second hand will resume normal operation, without any adjustment of the hand setting.

• If the second hand is pointing to Y or N, you can return to the Timekeeping Mode by pressing 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

N (No) Y (Yes)

123456

1. Place the watch on a stable surface so its 9 o’clock side is facing towards a window.

2. In any mode, hold down B for about two seconds until the watch beeps.

3. When you release B, the second hand will move to READY to indicate that the watch is setting up for time calibration reception.

• The second hand will move to WORK and stay there

while actual reception is in progress.

• The hour and minute hands continue to keep time

normally.

• Time calibration signal reception takes from two to

seven minutes, but in some cases it can take up to 14 minutes. Take care that you do not perform any button operations or move the watch during this time.

• If reception is successful, the second hand will move to

Y (Yes). One or two minutes later, the hands will move to the correct time.

Enter the Receive Result Mode.

• If the watch was able to perform a successful signal

receive operation since midnight, the second hand will move to Y (Yes). If the watch has been unable to receive any signal successfully, the second hand will move to N (No).

• To return to the Timekeeping Mode, press B three

times.

• The current receive result is cleared when the first auto

receive operation is performed on the following day. This means Y indicates successful signal reception since the start of the current day.

• Y continues to be indicated even if an attempt at manual

receive fails after auto receive is successful.

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

second hand will move to N.

Mainflingen

next day

Signal Reception Troubleshooting

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

The second hand is pointing at N.

Time setting is incorrect following signal reception.

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

• You changed the time setting manually.

•

The watch was not in the Timekeeping Mode, or you performed some button operation during the auto receive operation.

• Signal reception results are reset at midnight each day.

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

What you should doProblem Probable Cause

• 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.

Alarm

OFF

• To move the hands back, press A. After that, each press of B will move the

hands counterclockwise in one-minute steps.

• Once you use the above operation to change to counterclockwise hand

movement, pressing A will not change back to clockwise hand movement. Pressing A during counterclockwise hand movement will exit the setting mode. To use clockwise hand movement again, you will need to exit the setting mode and restart this procedure from step 1.

• When setting the alarm time, take care to set AM and PM correctly. The second hand will move between AM and PM any time the hour hand moves past 12 o’clock while you are setting the alarm time.

3. After setting the alarm time, press A as many time as necessary to exit the setting

mode.

• If you set the alarm time using clockwise hand movement only, press A twice to exit

the setting mode.

• If you set the alarm time using counterclockwise hand movement, press A once to

exit the setting mode.

• This will cause the hour and minute hands to move to the current time, and the second hand to move to ON (alarm on).

• Setting the alarm time causes the alarm to turn on automatically.

Alarm Operation

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

• Alarm operations are performed in accordance with the Timekeeping Mode time.

• Pressing any button stops the alarm tone operation.

To turn an alarm on and off

In the Alarm Mode, press A to toggle the alarm ON and OFF.

When the alarm is turned on, the alarm sounds when the alarm time is reached.

• All of the operations in this section are performed in the

Alarm Mode, which you enter by pressing B.

• When you enter the Alarm Mode, the second hand will move to either ON (alarm on) or OFF (alarm off), and the hands will move to the current alarm time setting.

To set an alarm time

1. In the Alarm Mode, hold down A for five seconds to

display the setting mode.

• The second hand will move to AM or PM.

2. Use A and B to change the alarm time.

• Press B to move the hands clockwise in one-minute

steps.

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 second hand home position

12 o’clock

Correct hour and minute hand home position

1. Enter the Home Position Adjustment Mode.

• If the home position of the second hand is currently correct, it will move to the 12 o’clock position.

2. While in the Home Position Adjustment Mode, hold

down A for about five seconds. This will cause the second hand to make one revolution and stop at its current home position.

• The analog hands do not keep time during home position adjustment.

3. Check the position of the second hand.

• The second hand home position is correct if it is pointing at 12 o’clock.

• If the second hand is not pointing at 12 o’clock, it means that its home position is off. If this happens, press B to move the second hand clockwise in onesecond steps, until it points at 12 o’clock.

4. Press A to advance to hour and minute hand home

position adjustment.

• If current hour and minute hand alignment is correct, they will both move to 12 o’clock.

5. Check the position of the hour and minute hands.

• If the hour and minute hands are not pointing at 12 o’clock, it means that their home position is off. If this happens, press B to move the hour and minute hands clockwise in 10-second steps, until they point at 12 o’clock.

• You can change the hour and minute hand movement direction to counterclockwise by pressing A. After that, each press of B will move the hour and minute hands counterclockwise in 10-second steps.

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