Casio 3760 MA0410-EA User's Manual
Contents
1. OFF Auto receive turned off Calibration Signal Reception Precautions Auto reception can be performed while the watch is in the Timekeeping Mode or World Time Mode only e 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 e Pressing any button while auto reception is in progress will cause the watch to beep and then exit the receive operation e 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 e Proper reception may be impossible if there is something blocking the signal If reception is unsuccessful try again Operation Guide 3760 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 wit2. Configuring Home City Settings For information about city codes see the World Time City Code List Home City Transmitter TYO Either the Mt Otakadoya signal 40kHz or the Mt Hagane signal 60kHz LAX DEN CHI NYC Fort Collins Colorado signal 3000km i U S Transmitter MS Japan Transmitter RIR Locations Location SES k G SHUN 8 Mt Otakadoya 40kHz Fort Collins 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 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 Geographic contours nearby buildings seasonal conditions the time of day can even make reception impossible even when you are within range of the transmitter e Best reception is possible late at night Location Reception is difficult and may even be impossible in the locations described below Avoid such locations when performing signal reception e You should think of your watch operating like a radio or TV when it is receiving the calibration signal Among or near buildings ARED Inside a vehicle Next to a household appliance or automo
3. a In the Timekeeping Mode press the button e This causes the display to start cycling through the last reception date and time screens e The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes Ot h 2 Hold down the button for about two seconds witty v e This will cause the currently X ig auto receive setting to flash on the display 3 Press the button to cycle through the available auto receive settings J 4 When the setting is the way you want press the button e This will exit the setting screen and return to the last reception date and time screens e To return to the Timekeeping Mode press the O button again e The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes Auto Receive Settings when the Home City is TYO AUTO Auto receive turned on with automatic selection of either the Mt Otakadoya signal 40kHz or the Mt Hagane signal 60kHz whichever is strongest 40 Auto receive turned on for the Mt Otakadoya signal 40kHz 60 Auto receive turned on for the Mt Hagane signal 60kHz OFF Auto receive turned off Auto Receive Settings when the Home City is NYC CHI DEN or LAX ON Auto receive turned on for the Ft Collins Colorado signal
4. receive turned off OFF Use the procedure under Configuring Auto Receive Settings to turn on auto receive e 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 Time calibration signal reception is successful but the hourly time signal and current time are slightly off e 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 Time calibration signal reception is successful but the current time is one hour fast e Do you have summer time DST turned on ON Use the procedure under Configuring Home City Settings to turn off summer time Time calibration signal reception is successful but the current time setting is wrong Is the correct city code selected for your Home City 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 The digital time and analog time are different e Normally the received time calibration data is used to adjust the digital display time and then
5. summer time on Hong Kong and off Greenwich Mean Time Seoul e The DST indicator appears DST indicator on the display and London Tokyo timekeeping is advanced by Paris i Adelaide one hour when summer time is turned on Berlin Sydney You can turn summer time on Athens Noumea or off independently for each World Time Mode city Note Cairo Wellington 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 e Time differentials in the above table are in accordance with Universal Time Coordinated UTC Stopwatch Mode The stopwatch measures elapsed time in units of 1 100 second up to 59 minutes 59 99 seconds 60 minutes total When the maximum imit is reached the elapsed time automatically returns to zero and timing continues from there E To perform elapsed time measurement E Stopwatch Mode Display Screens Elapsed Time Measurement In the Stopwatch Mode press the button to start and stop elapsed time measurement baa ey wad j Minutes Seconds Start Stop The display shows the minutes and seconds Paused Elapsed Time Measurement When elapsed time measurement is paused the display alternates between a minute second screen and a 1 100 second screen at 2 second intervals 2 second gs Minutes Seconds 1 100 Second E Elapsed Time Measurement gt A Start St
6. the National Institute of Information and Communications current time setting accordingly 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 e The U S calibration signal Call Sign WWVB is transmitted by RA signal es Watch decodes the Na ional Institute of Standards and technology from Fort received data Collins Colorado i and converts it Signal data y to time data J ecode x Note that transmission of the time calibration signal may be interrupted occasionally due to maintenance lightning etc atomic clock Watch Internally Long wave Signal is received Transmitter time using built in antenna calibration ae A N E Time data lt Time is adjusted according to time data 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 Reception Range 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 e For information about selecting a Home City see
7. 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 The auto receive ON OFF settings don t appear when configuring auto receive settings e 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 The auto receive AUTO 40 and 60 settings do not appear when configuring auto receive settings 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 What time is auto receive performed e 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 How can I perform manual receive e Hold down the lower right 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
8. transmitter How can view the last reception date and time e Inthe Timekeeping Mode press the lower right 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 button again See To view the last reception date and time for more information 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 Auto Japan transmitter select 40kHz 60kHz Auto Receive A ij Ti Home City T Y Ci Tokyo AUTE Auto switching in accordance with signal data Summer Time Face Illumination Pressing the button in any mode except when a flashing setting screen is displayed illuminates the face of the watch for easy reading in the dark e You can use the procedure under To specify illumination duration to configure the illumination duration as approximately 1 5 seconds or 3 seconds Important e The light may be difficult to see if you turn it on under bright sunlight e 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 e Ill
9. Mode press the button to toggle the display between the alarm screen and the Hourly Time Signal screen E To set the alarm time 1 In the Alarm Mode press the button to display the alarm screen When you press the button the screen that was displayed when you last pressed the button appears first Alarm Screen OS Alarm off O Hourly Time Signal Screen Hourly Time Signal off 2 Hold down the button for about two seconds This will cause the hour digits of the alarm time to flash e Displaying the setting screen automatically turns on the alarm Use the and Back buttons to change the minute setting e Holding down either button e Holding down either button changes the setting at high changes the setting at high speed speed When setting the hour make Forward sure you specify AM no indicator or PM P correctly when using 12 hour 6 timekeeping or that you K 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 buttons to change the 3 Use the and Baci 5 hour setting Forward When the setting is the way you want press the button e This exits the setting screen e The display also will exit the setting screen automatically if you do not perform any operation
10. bile train plane etc office equipment TV speaker fax computer cell phone etc ASIO In a location where there is radio interference construction site airport etc Near mountains If you are experiencing problems with reception move away from the types of locations described above to a location with better reception and try again Operation Guide 3760 Receiving the Calibration Signal There are two methods you can use to receive the time calibration signal e Auto receive Reception is performed automatically at midnight 2 00 3 00 and 4 00 each morning e Manual receive You initiate reception using a button operation e If reception is not successful for any of the normal auto receive operations shown above auto receive is performed one more time at 5 00 a m The watch is set up for auto receive at the factory so all you need to do is to place it in a location that allows good reception each night E To position the watch for optimum reception Remove the watch from your wrist and place it somewhere so its top 12 o clock side where the antenna is located is facing approximately in the direction of the signal transmitter Keep the watch away from metal objects Metal band Orienting the watch so it is sideways to the transmitter makes it more difficult to receive the signal Do not move the watch while it is receiving the calibration signal E Time Required for Reception A ca
11. der optimum reception conditions it can take about 10 seconds for reception to stabilize e Use the receive indicator to check reception status and to determine the best location for signal reception e Note that weather the time of day surroundings and other factors can all affect reception E To view the last reception date and time In the Timekeeping Mode press the button e This causes the display to start cycling through the screen date screen and time screen at two second To return to the Timekeeping Mode press the button again e The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes y Last reception date Last reception time Configuring Auto Receive Settings Use the procedure below to turn auto receive of the time calibration signal on or off When TYO Tokyo is selected as your Home City you can also specify the transmitter selection mode that controls which Japanese transmitter signal should be used for time calibration e For information about selecting your Home City see Configuring Home City Settings e The initial factory default settings for auto receive are Home City TYO Tokyo Auto Receive On Transmitter AUTO The following procedure can be performed only when TYO NYC CHI DEN or LAX is selected as the Home City E To configure auto receive settings 1
12. ding down the button scrolls at high speed Mode time is also applied in the World Time Mode City W p 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 Westward e For information about configuring timekeeping settings see Configuring Home City Settings Important Current Time in Selected City Pressing the 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 Using Summer Time DST World Time City Code List Summer time or Daylight Saving Time DST as is it is known in 7 GMT City GMT some countries calls for setting clocks ahead one hour during the Differential City Name Code Differentia City Name summer season Note that the use of summer time depends on the country and even the local area Jerusalem Honolulu Jeddah E To turn summer time on or off Anchorage Teheran 1 a In the World Time Mode Los Angeles Dubai use the button to display the screen for the Denver Kabul city code whose summer Chicago Karachi time setting you want to i change New York Delhi Caracas Dakar 2 Rio de Janeiro Yangon Hold down the button for about two seconds Bangkok This toggles
13. ee Operation Guide 3760 Modes and Display Screens Each press of the button sounds a confirmation tone and cycles through available modes in the sequence shown below e 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 Mode World Time Mode Hourly Time Signal Changing Display Screen Contents Each press of the button cycles display contents in the City Code A Screen alu following sequence Day of the Week Date Seconds Button Current Time r Day of the week Date Button Mode switching Day of the week Month Day af lo Days of the Week Current Time Screen Seconds Screen SUN Sunday MON Monday TUE Tuesday PM indicator WED Wednesday THU Thursday FRI Friday no indicator for AM SAT Saturday J aO Current Time in Selected City e Alarm off e Hourly Time Signal off Stopwatch Mode Hand Setting Mode Mode Indicato Seconds A Mode Indicator Elapsed Time How a Radio controlled Watch Works What is a radio controlled watch Calibration Signal Your radio controlled watch is designed to receive a time The Japanese calibration signal Call Sign JJY is maintained by calibration signal that contains standard time data and adjust its
14. for about two or three minutes 4 Press the button to select the minute setting e This causes the minute digits to flash Minutes E To turn the alarm on or off E To turn the hourly time signal on or off 1 a In the Alarm Mode use the button to display the alarm screen 1 In the Alarm Mode use the button to display the 2 Press the button to toggle the alarm on 4 displayed or off tif displayed a GHP or off Ch OF Press the button to toggle the Hourly Time Signal on Alarm On Cc Alarm rme Lg Alarm Off lo E To stop the alarm beeper After the alarm starts to sound press any button to stop it E To test the alarm In the Alarm Mode hold down the button to sound the alarm Hourly Time Signal screen Hourly Time Signal Off O Hourly Time Signal On Configuring Home City Settings Home City settings include your Home City the city where you will 2 normally use the watch the current time and date in your Home Press the button to scroll westward through City and other settings wr My e Use the Timekeeping Mode to configure Home City settings the city codes until the gt X one you want to select is zTY Oe displayed Ky ie Was If you are planning to adjust both the digital and analog settings manually be sure to adjust the digital setting fi
15. hin 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 Troubleshooting The watch cannot receive the time calibration signal e Is the signal being transmitted 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 e Are you within the reception range of a transmitter See Reception Range for information about areas where the watch can receive the signal e 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 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 e Is auto
16. libration signal receive operation takes anywhere from about two to six minutes e Note that when AUTO Auto Select is specified as the transmitter selection mode signal reception can take up to 12 minutes See Configuring Auto Receive Settings for more information E To perform manual receive O In the Timekeeping Mode hold down the button for about two seconds e The watch will beep and reception will start An indicator will appear on the display to indicate reception conditions E To interrupt reception Press the button All other buttons besides are disabled during signal reception When reception is successful The watch will terminate reception and adjust the current time Next it will beep and then display the date and time that the adjustment was performed Reception Error ERR Indicator The watch will display ERR without adjusting its current time setting when signal reception is unsuccessful for some reason e The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes E Receive Indicator The receive indicator cycles from Unstable through Stable as shown below while reception is in progress How far it cycles depends on the signal strength Keep the watch in a location where reception is stable while reception is in progress Receive Indicator Unstable Stable Even un
17. me setting is the way you want use the button to cycle the display through the settings shown below gt xTw p Home Cii SS 12 24 hour Code i Summar ume Timekeeping f yo Day Seconds f Yo Month lt Year lt Minute lt Hour 6 While the 12 24 hour timekeeping setting is flashing press the button to toggle between 12 hour 12H and 24 hour 24H timekeeping Ot Indicates 12 hour or 24 hour timekeeping 7 While the seconds are selected press the button to reset them to 00 in accordance with the time signal on the radio TV etc Ot Pressing the button while Seconds reset to 00 the seconds count is in the range of 30 to 59 resets it to 00 and also adds 1 to the minutes Pressing the button in the range of 00 to 29 resets the seconds count without changing the minutes Pressing the button while the seconds count is flashing changes the face illumination duration See To specify illumination duration for more information 8 While the hour minutes year month or day setting is flashing use the Sian button to change the setting Bx Wy Holding down the button Foard changes the setting at high Hour Minutes speed Use the button to select each of the settings and the button to cha
18. nge them e When setting the hour make sure you specify AM no indicator or PM P correctly or that you specify the correct 24 hour time e 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 e The watch automatically makes adjustments for leap years and month lengths 9 When all of the settings are the way you want press the button e This exits the setting screen e The display also will exit the setting screen automatically if you do not perform any operation for about two or three minutes Digital Analog Synchronization After adjustment of the digital time the watch automatically adjusts its analog setting to match 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 Adjusting the Analog Time Setting You can use the Hand Setting Mode to adjust the analog time manually when it does not match the digital time 1 In the Hand Setting Mode hold down the button for about two seconds e This will cause the hour and minute setting of the digital time to flash on the display 2 Use the button to adjust the hour and minute hands so they match the digital time Each press of the button moves the hands 20 seconds clock
19. op Reset Pressing the button while timing is stopped resets the stopwatch to all zeros Cumulative Time Measurement Pressing the button to restart the stopwatch without resetting it to all zeros causes the elapsed time measurement to resume from where it was last stopped E Split Time Measurement Start Record Split Clear Split Stop Reset Pressing the 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 E 1st and 2nd Place Finishers Start 1st Finish 2nd finish Displays time of 2nd finisher Reset Displays time of 1st finisher Pressing the 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 button to exit the split time screen and display the elapsed time when the measurement was stopped Split Time Screen Split Indicator Minutes Seconds 1 100 Second The split time screen cycles alternately through the split indicator a minute a second screen and a 1 100 second screen n Operation Guide 3760 Using the Alarms and Hourly Time Signal The watch beeps for 10 seconds when the current time in the Timekeeping Mode reaches the alarm time you set The Hourly Time Signal causes the watch to beep every hour on the hour E To display the alarm screen In the Alarm
20. rst See the World Time City TYO Tokyo Westward Code List for information about city codes Holding down the button scrolls at high speed E To configure Home City settings 1 a Inthe Timekeeping Mode hold down the button 3 When the city code you for about two seconds GERS want is displayed press wi ye wy IT a t the button STIS This will cause the city code LIE SATO currently selected as the an ite ye e This will display the summer gt ost ye Home City to flash on the time DST setting screen LAN display Home City Code 4 Press the button to cycle through the available summer time DST settings until the one you want to select is displayed AUTO This setting enables the auto summer time setting which turns summer time on or off in accordance with the received time calibration signal e 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 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 Operation Guide 3760 5 When the summer ti
21. umination is disabled while a manual time calibration signal receive operation is in progress E To specify illumination duration 1 a Inthe Timekeeping Mode hold down the button gt for about two seconds This will cause your Home City code to flash on the display Home City Code times to display the 2 Press the button three flashing seconds count 3 times Seconds 3 Press the button to toggle the illumination duration between about 1 5 seconds indicator and 3 seconds ee indicator to 4 After the setting is the way you want press the button to exit the setting screen e The watch will also exit the setting screen automatically if you do not perform any operation for about two or three minutes Operation Guide 3760 World Time Mode World Time lets you display the current time in any one of 30 cities 29 time zones around the world E To search fora city code When you enter the World Time Mode the screen for the city that In the World Time Mode press the button was displayed when you last exited the mode appears first e This scrolls westward through the available city codes A short The seconds count in the World Time Mode is linked with the while after a city code appears the display will change to show Timekeeping Mode seconds count the current time in that city The same 12 hour 24 hour format you select for the Timekeeping Hol
22. wise e Holding down the button moves the hands at high speed High speed Lock While holding down the button to start high speed clockwise movement of the hands press the button to lock the high speed hand movement You can then release the buttons e High speed hand movement will continue until it completes a 12 hour cycle or until you press any button to stop it e High speed hand movement will also stop momentarily if an alarm starts to sound High speed movement will resume after the alarm stops 3 When the setting is the way you want press the button e This exits the setting screen and automatically synchronizes the minute hand with the current seconds count e The display also will exit the setting screen automatically if you do not perform any operation for about two or three minutes
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