Casio MO0506-EA User Manual download pdf (Page 2)

Operation Guide 3722

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

below.

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

• Time calibration signal reception takes from four 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.

Inside or

among

buildings

Inside a

vehicle

Near a

construction

site, airport, or

other sources

of electrical

noise

Near high-

tension

power lines

Among or

behind

mountains

Near

household

appliances,

office

equipment,

or a mobile

phone

• Under good reception conditions, signal reception is possible within a radius of

about 2,000 miles (3,000 kilometers) from the Fort Collins transmitter.

• At distances further than about 600 miles (1,000 kilometers) from the Fort Collins

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.

Reception Ranges

2,000 miles

Fort Collins

600 miles

About Auto Receive

The watch automatically starts to receive the time calibration signal when the time in

the Timekeeping Mode reaches 0:01 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00

a.m. each day (calibration times). The watch will also perform an additional auto

receive at 5:00 a.m. if none of the regularly scheduled auto receive operations are

successful. 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.

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 four 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

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 four 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

YES. One or two minutes later, the hands will move to

the correct time.

WORK

READY

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 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 YES or NO, you can return to the Timekeeping

Mode by pressing any button.

To check the latest signal reception results

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 YES. If the watch has been unable to receive

any signal successfully, the second hand will move to

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 YES indicates successful signal reception since

the start of the current day.

• YES 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 NO.

Signal Reception Troubleshooting

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

• 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.

The second

hand is

pointing at

NO.

Time setting is

incorrect

following signal

reception.

• 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.

What you should doProblem Probable Cause

• 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.

• 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.

• 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.

Viewing the Latest Signal Reception Results

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

correctly.

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Operation Guide 3722 1

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Casio MO0506-EA User Manual Page 2

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