Casio Watch MA0410 EA User Manual

MA0410-EA  
Operation Guide 3760  
Modes and Display Screens  
Each press of the C button sounds a confirmation tone and cycles through available modes in the sequence shown below.  
World Time Mode  
Alarm Mode  
The display will automatically revert to the Timekeeping screen if you leave the Alarm or Hand Setting screen displayed without performing  
any operation for about two or three minutes.  
Timekeeping Mode  
Alarm  
Hourly Time Signal  
City Code  
Changing Display Screen Contents  
Each press of the  
following sequence: Day of the Week Date Seconds ➡  
Current Time  
button cycles display contents in the  
(Light)  
(Screen Switching)  
Button  
Button  
Current Time in Selected City  
Alarm off  
Hourly Time Signal off  
Day of the week  
Date  
Button  
(Mode switching)  
Button  
Day of the week  
Month/Day  
Hand Setting Mode  
Stopwatch Mode  
Days of the Week  
Current Time Screen  
PM indicator  
(no indicator for AM)  
Seconds Screen  
SUN: Sunday  
MON: Monday TUE: Tuesday  
Mode Indicator  
WED: Wednesday THU: Thursday FRI: Friday  
SAT: Saturday  
Hour  
Minutes  
Seconds  
Elapsed Time  
Mode Indicator  
Reception Range  
How a Radio-controlled Watch Works  
This watch is designed to receive the standard time calibration signal of Japan (JJY) or of the United States (WWVB). The signal that is  
received depends on the current Home City setting.  
For information about selecting a Home City, see “Configuring Home City Settings”. For information about city codes, see the “World Time  
City Code List”.  
What is a radio-controlled watch?  
Calibration Signal  
Your radio-controlled watch is designed to receive a time  
calibration signal that contains standard time data, and adjust its  
current time setting accordingly.  
The Japanese calibration signal (Call Sign: JJY) is maintained by  
the National Institute of Information and Communications  
Technology (NICT). It is a long wave signal transmitted 24 hours a  
day from the Mt. Otakadoya transmitter (40kHz) located in  
Tamura-gun, Fukushima Prefecture, and from the Mt. Hagane  
transmitter (60kHz) located on the border between Saga  
Prefecture and Fukuoka Prefecture.  
Home City  
TYO  
Transmitter  
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)  
Fort Collins, Colorado signal  
Signal is received  
using built-in antenna.  
LAX, DEN, CHI, NYC  
Long-wave  
time  
calibration  
signal  
Transmitter  
The U.S. calibration signal (Call Sign: WWVB) is transmitted by  
the National Institute of Standards and technology from Fort  
Collins, Colorado.  
U.S. Transmitter  
Location  
1000km  
Japan Transmitter  
Locations  
Watch decodes  
received data  
and converts it  
to time data.  
Signal data  
Decode  
3000km  
Note that transmission of the time calibration signal may be  
interrupted occasionally due to maintenance, lightning, etc.  
Mt. Otakadoya  
(40kHz)  
500km  
1000km  
500km  
Time data  
Internally  
Mt. Hagane  
(60kHz)  
Time is adjusted  
according to  
time data.  
Cesium  
atomic clock  
Watch  
Fort Collins  
1000km  
Under optimum conditions, the calibration signal should be  
receivable up to 1,000 kilometers from the transmitter.  
Note that the wave is relatively weak at distances greater  
than 500km, so reception may be poor at long distances.  
Under optimum conditions, the calibration signal should be  
receivable up to 3,000 kilometers from the transmitter.  
Note that the wave is relatively weak at distances greater  
than 1,000km, so reception may be poor at long distances.  
After the watch receives the Standard Time signal, it performs  
internal calculations to determine the current time. Because of  
this, there may be an error of up to one second in the  
displayed time.  
Geographic contours, nearby buildings, seasonal conditions, the time of day, can even make reception impossible even when you are within  
range of the transmitter.  
Best reception is possible late at night.  
1
 
Operation Guide 3760  
Calibration Signal Reception  
Precautions  
Troubleshooting  
Time calibration signal reception is successful, but the hourly  
time signal and current time are slightly off.  
The watch cannot receive the time calibration signal.  
Auto reception can be performed while the watch is in the  
Timekeeping Mode or World Time Mode only.  
This watch is designed to adjust its current time setting in  
accordance with the calibration signal transmitted in Japan and  
the United States only. It operates like a standard (non-radio  
controlled) watch outside of the range of the receivable time  
calibration signal transmitters.  
When the watch is unable to adjust its time signal using the  
calibration signal for some reason, timekeeping accuracy is within  
±15 seconds per month.  
Strong electrostatic charge can cause timekeeping error.  
Signal reception is cancelled if an alarm starts to sound while it is  
being performed.  
The watch’s calendar shows dates up to the year 2099.  
Attempting a receive operation after that causes an error.  
Is the signal being transmitted?  
After the watch receives the time calibration signal, it performs an  
internal decoding process before updating its time setting.  
Because of this, the time setting may be slightly off (within one  
second).  
Though the Japanese calibration signal (Call Sign: JJY) is  
continually transmitted by the National Institute of Information and  
Communications Technology (NICT) in theory, it may sometimes  
be interrupted for periodic maintenance work, or because of  
lightning or other problems.  
Are you within the reception range of a transmitter?  
See “Reception Range” for information about areas where the  
watch can receive the signal.  
When a time calibration signal is received, the watch corrects its  
digital time setting first, and then adjusts the analog time setting  
accordingly. In order to ensure that the analog time matches the  
digital time, make sure you adjust the analog time to match the  
digital time before performing signal reception.  
Time calibration signal reception is successful, but the current  
time is one hour fast.  
Pressing any button while auto reception is in progress will cause  
the watch to beep and then exit the receive operation.  
Make sure you are within the range of the calibration signal  
transmitter before performing the reception operation. Remember  
that geographic contours, nearby buildings, seasonal conditions,  
the time of day, can even make reception impossible even when  
you are within range of the transmitter.  
Do you have summer time (DST) turned on (ON)?  
Use the procedure under “Configuring Home City Settings” to turn  
off summer time.  
Is there something in the immediate area that may be interfering  
with reception?  
Even if you are within the reception range of a transmitter, objects  
between you and the transmitter or electrical noise can interfere  
with reception. Avoid such areas during signal reception. See  
“Location” for more information.  
Time calibration signal reception is successful, but the current  
time setting is wrong.  
Proper reception may be impossible if there is something blocking  
the signal. If reception is unsuccessful, try again.  
Is the correct city code selected for your Home City?  
Do you have the correct Home City code selected?  
Remember that auto receive is not performed unless TYO  
(Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX  
(Los Angeles) is selected as the Home City. Select the correct  
Home City code using the procedure under “Configuring Home  
City Settings”.  
If you are in Japan, you should have TYO selected for your Home  
City. For other areas, select the correct Home City code using the  
procedure under “Configuring Home City Settings”.  
Is auto receive turned off (OFF)?  
Use the procedure under “Configuring Auto Receive Settings” to  
turn on auto receive.  
Is the watch in any mode other than the Timekeeping Mode or  
World Time Mode during the auto receive times (midnight, 2:00  
a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)?  
Auto receive is performed only when the watch is in the  
Timekeeping Mode or World Time Mode. It is not performed if the  
watch is in any other mode.  
The digital time and analog time are different.  
How can I perform manual receive?  
Normally, the received time calibration data is used to adjust the  
digital display time, and then the analog hands are adjusted to  
match the digital time. If the hands are misaligned for some  
reason, they will not indicate the correct time. If this happens, use  
the procedure under “Adjusting the Analog Time Setting” to adjust  
the analog time.  
Hold down the lower right D button for about two seconds. The  
watch will beep to indicate that manual receive has started. Place  
it near a window, with its 12 o'clock position facing in the general  
direction of the transmitter.  
Face Illumination  
Pressing the B button in any mode (except when a flashing  
setting screen is displayed) illuminates the face of the watch for  
easy reading in the dark.  
2.  
3.  
Press the C button three  
times to display the  
flashing seconds count.  
How can I view the last reception date and time?  
You can use the procedure under  
To specify illumination duration”  
to configure the illumination  
duration as approximately  
In the Timekeeping Mode, press the lower right D button. This  
will display the date and time that the time calibration signal was  
last received successfully. To return to the Timekeeping Mode,  
press the D button again. See “To view the last reception date  
and time” for more information.  
The auto receive ON/OFF settings don’t appear when  
configuring auto receive settings.  
Auto receive ON/OFF settings do not appear on the display  
unless TYO (Japan), NYC (New York), CHI (Chicago), DEN  
(Denver), or LAX (Los Angeles) is selected as the Home City. Use  
the procedure under “Configuring Home City Settings” to select  
your correct Home City.  
(3 times)  
1.5 seconds or 3 seconds.  
Seconds  
Check the auto signal reception setting whenever you have  
problems with signal reception or when the time setting produced  
by signal reception is incorrect.  
The initial factory default configuration of the reception settings  
are shown below. You do not need to change these settings if you  
use the watch in Japan.  
Press the B button to  
toggle the illumination  
duration between about  
1.5 seconds ( indicator)  
and 3 seconds  
The auto receive AUTO, 40, and 60 settings do not appear when  
configuring auto receive settings.  
Important!  
The light may be difficult to see if you turn it on under bright  
sunlight.  
If you press a button that sounds a confirmation tone to sound or  
if an alarm operation starts while the face is illuminated,  
illumination will turn off.  
Illumination is disabled while a manual time calibration signal  
receive operation is in progress.  
The AT, JP40, and JP60 transmitter selection mode options are  
available only when TYO (Tokyo) is selected as the Home City  
code. Use the procedure under “Configuring Home City Settings”  
to select your correct Home City.  
(
indicator).  
Auto Japan transmitter select  
(40kHz/ 60kHz)  
Auto Receive  
Home City  
What time is auto receive performed?  
Tokyo  
Auto receive is performed in the middle of the night, when  
reception conditions are best. Before going to bed at night, place  
the watch near a window, with its 12 o’clock position facing in the  
general direction of the transmitter.  
4.  
After the setting is the way you want, press the A  
button to exit the setting screen.  
To specify illumination duration  
Auto switching in accordance  
with signal data  
Summer Time  
1.  
In the Timekeeping Mode,  
hold down the A button  
for about two seconds.  
The watch will also exit the setting screen automatically if you  
do not perform any operation for about two or three minutes.  
This will cause your Home  
City code to flash on the  
display.  
Home City Code  
3
 
Operation Guide 3760  
Using Summer Time (DST)  
World Time City Code List  
World Time Mode  
World Time lets you display the current time in any one of 30 cities  
(29 time zones) around the world.  
Summer time, or Daylight Saving Time (DST) as is it is known in  
some countries, calls for setting clocks ahead one hour during the  
summer season. Note that the use of summer time depends on  
City  
GMT  
City  
GMT  
City Name  
City Name  
Code Differential  
– – – –11  
HNL –10  
Code Differential  
JRS  
JED  
THR  
DXB  
KBL  
KHI  
+2  
+3  
Jerusalem  
Jeddah  
Teheran  
Dubai  
To search for a city code  
In the World Time Mode, press the D button.  
the country and even the local area.  
When you enter the World Time Mode, the screen for the city that  
was displayed when you last exited the mode appears first.  
The seconds count in the World Time Mode is linked with the  
Timekeeping Mode seconds count.  
Honolulu  
Anchorage  
Los Angeles  
Denver  
This scrolls westward through the available city codes. A short  
while after a city code appears, the display will change to show  
the current time in that city.  
To turn summer time on or off  
ANC  
LAX  
DEN  
CHI  
–9  
–8  
–7  
–6  
–5  
–4  
–3  
–2  
–1  
+0  
+0  
+1  
+1  
+2  
+2  
+3.5  
+4  
1.  
In the World Time Mode,  
use the D button to  
display the screen for the  
city code whose summer  
time setting you want to  
change.  
Holding down the D button scrolls at high speed.  
The same 12-hour/24-hour format you select for the Timekeeping  
Mode time is also applied in the World Time Mode.  
+4.5  
+5  
Kabul  
City Code  
Chicago  
Karachi  
Delhi  
NYC  
CCS  
RIO  
New York  
Caracas  
DEL  
DAC  
+5.5  
+6  
Important!  
If the World Time Mode time is incorrect, correct the setting of the  
current time or change to another Home City in the Timekeeping  
Mode.  
Dakar  
Rio de Janeiro RGN +6.5  
Yangon  
Bangkok  
Hong Kong  
Seoul  
(Westward)  
2.  
Hold down the A button  
for about two seconds.  
For information about configuring timekeeping settings, see  
“Configuring Home City Settings”.  
– – –  
– – –  
GMT  
LON  
PAR  
BER  
ATH  
CAI  
BKK  
HKG  
+7  
+8  
Current Time in  
Selected City  
This toggles summer time on  
and off.  
The “DST” indicator appears  
on the display and  
timekeeping is advanced by  
one hour when summer time  
is turned on.  
Greenwich Mean Time SEL  
+9  
Pressing the A button in the World Time Mode displays the city  
code of the currently selected city for about two seconds.  
Selecting a time zone that does not have a city code displays the  
GMT time differential for that zone.  
DST indicator  
London  
Paris  
TYO  
ADL  
SYD  
NOU  
WLG  
Tokyo  
+9  
+9.5  
+10  
+11  
+12  
Adelaide  
Sydney  
Noumea  
Wellington  
Berlin  
Athens  
Cairo  
You can turn summer time on  
or off independently for each  
World Time Mode city. Note,  
however, that you cannot turn  
on summer time for the “GMT”  
city code.  
The contents of the above table are current as of December 2003.  
Time differentials in the above table are in accordance with  
Universal Time Coordinated (UTC).  
Elapsed Time Measurement  
Stopwatch Mode  
Start  
Stop  
Reset  
The stopwatch measures elapsed time in units of 1/100 second up to 59 minutes 59.99 seconds (60 minutes total). When the maximum  
limit is reached, the elapsed time automatically returns to zero and timing continues from there.  
Pressing the A button while timing is stopped resets the stopwatch to all zeros.  
Cumulative Time Measurement  
Pressing the D button to restart the stopwatch without resetting it to all zeros causes the elapsed time measurement to resume from  
where it was last stopped.  
To perform elapsed time measurement  
Stopwatch Mode Display Screens  
Elapsed Time Measurement  
In the Stopwatch Mode, press the D button to start and  
stop elapsed time measurement.  
The display shows the minutes and seconds.  
Split Time Measurement  
Start  
Pressing the A button while timing is being performed displays the split time screen, but timing continues internally.  
Changing to another mode while a split time is displayed clears the split time operation.  
Record Split  
Clear Split  
Stop  
Reset  
Reset  
(Split/Reset)  
1st and 2nd Place Finishers  
Minutes  
Seconds  
(Start/Stop)  
Start  
1st Finish  
2nd finish  
Displays time of 2nd finisher.  
Paused Elapsed Time Measurement  
(Displays time of 1st finisher.)  
When elapsed time measurement is paused, the display alternates  
between a minute/second screen and a 1/100 second screen at  
2-second intervals.  
Pressing the D button while the split time screen is on the display stops elapsed time measurement, and leaves the split time screen on  
the display. Press the A button to exit the split time screen and display the elapsed time when the measurement was stopped.  
2-second  
interval  
Split Time Screen  
Split Indicator  
Minutes Seconds  
1/100 Second  
The split time screen cycles alternately through the split indicator, a minute/  
second screen, and a 1/100 second screen.  
1/100 Second  
Minutes  
Seconds  
4
 
Operation Guide 3760  
Using the Alarms and Hourly Time Signal  
(Back)  
(Back)  
3.  
Use the D (+) and B (–)  
buttons to change the  
hour setting.  
5.  
Use the D (+) and B (–)  
buttons to change the  
minute setting.  
The watch beeps for 10 seconds when the current time in the  
Holding down either button  
changes the setting at high  
speed.  
When setting the hour, make  
sure you specify AM (no  
indicator) or PM (P) correctly  
when using 12-hour  
timekeeping, or that you  
specify the correct 24-hour  
time.  
The same 12-hour/24-hour  
format you select for the  
Timekeeping Mode home time  
is also applied in the Alarm  
Mode.  
Holding down either button  
changes the setting at high  
speed.  
To set the alarm time  
Timekeeping Mode reaches the alarm time you set.  
The Hourly Time Signal causes the watch to beep every hour on  
the hour.  
(Forward)  
1.  
In the Alarm Mode, press  
the D button to display  
the alarm screen.  
(Forward)  
To display the alarm screen  
6.  
When the setting is the way you want, press the A  
button.  
In the Alarm Mode, press the D button to toggle the display  
between the alarm screen and the Hourly Time Signal  
screen.  
This exits the setting screen.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
2.  
Hold down the A button  
for about two seconds.  
When you press the D button, the screen that was displayed  
when you last pressed the D button appears first.  
This will cause the hour digits  
of the alarm time to flash.  
Alarm Screen  
Hourly Time Signal Screen  
Displaying the setting screen  
automatically turns on the  
alarm.  
4.  
Press the C button to  
select the minute setting.  
Hour  
This causes the minute digits  
to flash.  
Alarm off  
Hourly Time Signal off  
Minutes  
To turn the alarm on or off  
To turn the hourly time signal on or off  
Configuring Home City Settings  
1.  
In the Alarm Mode, use the D button to display the  
alarm screen.  
1.  
In the Alarm Mode, use the D button to display the  
Hourly Time Signal screen.  
Home City settings include your Home City (the city where you will  
normally use the watch), the current time and date in your Home  
City, and other settings.  
2.  
Press the D button to  
scroll westward through  
the city codes until the  
one you want to select is  
displayed.  
Use the Timekeeping Mode to configure Home City settings.  
2.  
Press the A button to toggle the alarm on (“  
2.  
Press the A button to toggle the Hourly Time Signal on  
displayed) or off (“  
” displayed).  
(“  
”) or off (“  
”).  
If you are planning to adjust both the digital and analog  
settings manually, be sure to adjust the digital setting first.  
(Westward)  
Alarm Off  
Alarm On  
Hourly Time Signal Off  
Hourly Time Signal On  
See the “World Time City  
Code List” for information  
about city codes.  
TYO = Tokyo  
Holding down the D button  
scrolls at high speed.  
To configure Home City settings  
1.  
In the Timekeeping Mode,  
hold down the A button  
for about two seconds.  
3.  
When the city code you  
want is displayed, press  
the C button.  
Alarm Time  
This will cause the city code  
currently selected as the  
Home City to flash on the  
display.  
This will display the summer  
time (DST) setting screen.  
Home City Code  
To stop the alarm beeper  
After the alarm starts to sound, press any button to stop it.  
To test the alarm  
In the Alarm Mode, hold down the D button to sound the alarm.  
5
 
Operation Guide 3760  
4.  
Press the D button to  
cycle through the  
available summer time  
(DST) settings until the  
one you want to select is  
displayed.  
6.  
While the 12/24-hour  
8.  
While the hour, minutes,  
year, month, or day setting  
is flashing, use the D (+)  
button to change the  
setting.  
5.  
When the summer time  
setting is the way you  
timekeeping setting is  
flashing, press the D  
button to toggle between  
12-hour (“12H”) and 24-  
hour (“24H”) timekeeping.  
want, use the C button to  
cycle the display through  
the settings shown below.  
(Forward)  
Minutes  
Holding down the D button  
changes the setting at high  
speed.  
Indicates 12-hour or  
24-hour timekeeping.  
Hour  
Home City  
Code  
12/24-hour  
Timekeeping  
AUTO  
Summer Time  
This setting enables the auto summer time setting, which  
turns summer time on or off in accordance with the received  
time calibration signal.  
7.  
While the seconds are  
selected, press the D  
button to reset them to 00  
in accordance with the  
time signal on the radio,  
TV, etc.  
Use the C button to select each of the settings and the  
D button to change them.  
This setting uses Japan summer time data when TYO is  
selected as the Home City, and U.S. summer time data  
when NYC, CHI, DEN, or LAX is selected as the Home  
City.  
Note that “AUTO” can be selected only when TYO, LAX,  
DEN, CHI, or NYC is selected as the Home City.  
Day  
Seconds  
Hour  
When setting the hour, make sure you specify AM (no indicator) or  
PM (P) correctly, or that you specify the correct 24-hour time.  
You can set a year in the range of 2000 to 2099. The day of the  
week is set automatically in accordance with the date you set.  
The watch automatically makes adjustments for leap years and  
month lengths.  
Seconds reset to 00.  
Pressing the D button while  
the seconds count is in the  
range of 30 to 59 resets it to  
00 and also adds 1 to the  
minutes. Pressing the D  
button in the range of 00 to 29  
resets the seconds count  
without changing the minutes.  
Month  
Year  
Minute  
OFF  
This setting turns off summer time and returns to normal  
timekeeping.  
ON  
This setting turns on summer time and advances the current  
time by one hour. The DST indicator appears on the display  
when this setting is selected.  
Pressing the B button while  
the seconds count is flashing  
changes the face illumination  
duration. See “To specify  
illumination duration” for more  
information.  
High-speed Lock  
Adjusting the Analog Time Setting  
While holding down the D button to start high-speed clockwise  
movement of the hands, press the B button to lock the  
high-speed hand movement. You can then release the buttons.  
High-speed hand movement will continue until it completes a  
12-hour cycle, or until you press any button to stop it.  
High-speed hand movement will also stop momentarily if an alarm  
starts to sound. High-speed movement will resume after the alarm  
stops.  
9.  
When all of the settings are the way you want, press the  
A button.  
You can use the Hand Setting Mode to adjust the analog time  
manually when it does not match the digital time.  
This exits the setting screen.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
1.  
In the Hand Setting Mode,  
hold down the A button  
for about two seconds.  
This will cause the hour and  
minute setting of the digital  
time to flash on the display.  
Digital-Analog Synchronization  
After adjustment of the digital time, the watch automatically  
adjusts its analog setting to match.  
3.  
When the setting is the way you want, press the A  
button.  
When adjusting the analog time, the hands move clockwise.  
Depending on how many hours different the digital and analog  
time settings are, it may take some time for the analog hand  
setting procedure to be finished.  
This exits the setting screen and automatically synchronizes  
the minute hand with the current seconds count.  
The display also will exit the setting screen automatically if  
you do not perform any operation for about two or three  
minutes.  
2.  
Use the D (+) button to  
adjust the hour and  
minute hands so they  
match the digital time.  
Each press of the D button  
moves the hands 20 seconds  
clockwise.  
(Forward)  
Holding down the D button  
moves the hands at high  
speed.  
6
 

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