Casio MO0610-EA Operation Manual Download Page 2

Operation Guide 4756

2

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 four to
seven minutes everyday when the time in the Timekeeping Mode reaches each of
the calibration times. Avoid performing 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 actually is the correct time.

Weak

Strong

(Level 0)

(Level 3)

Receiving indicator

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.

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

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 

R0

 starts to

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 four to
seven 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.

I I I II

III

III

II

I I

Receiving

Receive successful

When receive is unsuccessful, the display shows “

xx

”.

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.

Note

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

Receive failed

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.

The watch is not in the Receive
Result Mode.

Your current Home Time Zone
setting is not one of the following:

PT

MT

CT 

or

 ET

.

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.

Cannot
perform
manual
receive.

Auto receive
is not being
performed
successfully
(“

xx

displayed).

Enter the Receive Result Mode
and try again.

Select 

PT

MT

CT 

or

 ET 

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.

What you should do

Problem

Probable Cause

Time setting
is incorrect
following
signal
reception.

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.

Select the correct Home
Time Zone.

Enter the Home Position
Adjustment Mode and adjust
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 

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. (  indicator) or p.m. (

 

indicator).

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.

Alarm On Indicator / Hourly Time Signal On Indicator

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.

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 Off

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

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.

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 12-hour cycle.

4. Pressing 

B

 exits the home position adjustment.

I I I II

IIII

III

II

I I

12 o’clock

Correct analog hand
home position

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. This section
also explains how to set the current date and time manually.

If you become confused and lose your way during the following procedures, simply
put the watch down and do not perform any button operation for two or three
minutes. This will cause the watch to enter the Timekeeping Mode (indicated by
normal one-second movement of the second hand) automatically. After that, you can
try performing the manual setting procedure again from the beginning.

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

C

.

Hour hand

Minute hand

Day of week

Second hand

Press 

B

.

Time zone

B

B

Date

Reviews: