Casio 2739 User Manual

MO0212-A

USER’S GUIDE 2367/2739

About This Manual

• The operational procedures for Modules 2367 and 2739

are identical. All of the illustrations in this manual show Module 2367.

• Button operations are indicated using the letters shown

in the illustration.

• Each section of this manual provides you with the

Module 2367

Module 2739

General Guide

• Press C to change from mode to mode.

• In any mode, press B to illuminate the display.

Timekeeping Mode

information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

Press C.

▲

Day Counter Mode

Telememo Mode

▲

Hand Setting Mode

Alarm Mode

▲

Stopwatch Mode

▲

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. You can also display the Last Signal screen in the Timekeeping Mode.

Last Signal Date Time

Receive date

Receive time

• The Last Signal screen alternates between the time and date that the time

calibration signal was successfully received.

Current Time Setting

Normally, you do not need to do anything to set the current time as long as you are within an area in West Europe where the watch can pick up the time calibration signal. You can also set the current time manually when you are outside the range of the signal.

• Before using the watch after purchasing it, use the procedure under “Selecting Your

Home City Code” to specify your Home City, and then use the procedure under “To perform manual time calibration signal reception”.

• Note that after you set your Home City code, you must also turn on the watch’s time

calibration signal receiver if you want to enable auto time calibration. See “About Auto Receive” for more information.

• See “Setting the Digital Time and Date Manually” for information about manual

settings.

• The analog time of this watch is synchronized with the digital time. Because of this,

the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.

Setting the Digital Time and Date Manually

Once you select a Home City code and set its time, you can view the current time in other cities by simply changing the city code setting. Even if you plan to use the watch without enabling auto time calibration, be sure to select a Home City code (the city code whose time and date you are setting), before you set the time and date.

To set the current digital time and date manually

Receive

Sleep Mode

Auto

Receiving indicator

Press D.

▲

1. In the Timekeeping Mode, hold down A until the

2. Press C to move the flashing in the sequence shown

City Code

Day

Month – Day

▲

Day of week

current Auto Receive On/Off setting (the receiving indicator) starts to flash, which indicates the setting screen.

below to select other settings.

Month Year

Press A.

▲

12/24-Hour Format

▲

PM indicator

Minutes

Hour : Minutes

Seconds

SecondsDST

Hour

▲

3. When the setting you want to change is flashing, use B and/or D to change it as described below.

Setting

Auto Receive

City Code

DST

12/24-Hour format

Hour, Minutes

Seconds Month, Day

Year Sleep Mode

4. Press A to exit the setting screen.

• The Auto Receive setting is used for time calibration signal reception only. See

“About Auto Receive” for details.

• See “City Code Table” for a complete list of available codes.

• See “Sleep Mode” for details about the sleep mode.

• Resetting the seconds to 00 while the current count is in the range of 30 to 59

causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes.

Selecting Your Home City Code

You can select a city code for your Home City (the city where you normally use the watch). This data can be changed any time you move to another geographic area.

• See “City Code Table” for a complete list of available codes.

• Once you select a Home City code and set its time, you can use World Time to view

the current time in any one of 28 cities (29 time zones) around the world by simply specifying a city code.

To select your Home City code

City code

Time Calibration Signal Reception

This watch is designed to pick up a time calibration signal transmitted from Mainflingen, Germany and update its time setting in accordance with the signal. There are two different methods you can use to receive the signal: Auto Receive and Manual Receive. With Auto Receive, the watch automatically receives the calibration signal twice each day and makes appropriate adjustments. With Manual Receive, you perform a specific button operation to receive the calibration signal.

Note

• If you are using the time calibration signal to set the time for this watch, be sure to

correctly set your Home City. Otherwise, there is the chance that the watch will not set the correct time. See the “To select your Home City code” for details.

• Time calibration reception is limited to specific geographic areas in West Europe.

• The current time setting in accordance with the time calibration signal takes priority

over any time settings you make.

• The watch is designed to automatically update the date and day of the week for the

period January 1, 2000 to December 31, 2039. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2040.

• This watch can receive signals that differentiate between leap years and non-leap years.

Screen

1. In the Timekeeping Mode, hold down A until the current Auto Receive On/Off setting (the receiving indicator) starts to flash, which indicates the setting

screen.

2. Press C to move the flashing to the City Code setting.

3. Use D (+) and B (–) to change it.

4. Press A to exit the setting screen.

Button Operations

Press D to toggle auto receive on and off.

Use D (+) and B (–) to change the setting.

Press D to toggle between Daylight Saving Time (ON) and standard time (OFF).

• Pressing D performs a different operation when BER, LON, PAR, CAI, or JRS is selected as Home City Code. See “Auto Summer Time (DST) Switching”.

Press D to toggle between 12-hour (12H) and 24-hour (24H) timekeeping.

Use D (+) and B (–) to change the setting.

Press D to reset the seconds to 00. Use D (+) and B (–) to change the

setting. Press D to toggle the sleep mode on (On)

and off (OF).

USER’S GUIDE 2367/2739

• Auto Receive is turned on when the watch is shipped from the factory.

• See the information under “Time Calibration Signal Reception Precautions” if you

experience problems with time calibration signal reception.

Auto Summer Time (DST) Switching

The time calibration signal transmitted from Mainflingen, Germany includes both standard time and summer time (Daylight Saving Time or DST) data. Because of this, the watch automatically switches between standard time and summer time (DST) automatically whenever BER, LON, PAR, CAI, or JRS is selected as the Home City code.

• Daylight Saving Time (DST) advances the time setting by one hour from Standard

Time. Remember that not all countries or even local areas use Daylight Saving Time.

Auto Summer Time (DST) Default Settings

The following shows the default settings for each of the Home City codes that support auto summer time (DST) switching.

Home City Code

BER, LON, PAR

CAI, JRS

The following flows show how to switch the auto summer time setting between AUTO, ON, and OFF.

• The following are the meanings of the AUTO, ON, and OFF indicators.

AUTO - Watch will switch between standard time and summer time (DST)

automatically.

ON - Summer time (DST) OFF - Standard time (summer time turned off)

• See “To set the current digital time and date manually” for information about

configuring summer time (DST) settings.

Auto Summer Time Default Setting

AUTO

OFF

When BER is the Home City Code

Press D.

AUTO (Default)

When LON, PAR, CAI, or JRS is the Home City Code

Press D.

AUTO (Default for LON and PAR )

To perform manual time calibration signal reception

Receiving indicator

Weak

Module 2367

Current time

• After signal reception is complete, the display of the watch changes to the Last

Signal screen, which shows the new signal receive date and time.

• The Level 4 receiving indicator (

attempt was successful.

Note

• To interrupt a receive operation and return to the Timekeeping Mode (Date or Time

screen), press D.

• If the receive operation is unsuccessful, the message ERR appears on the Last

Signal screen for about one or two minutes. After that, the watch returns to the Timekeeping Mode (Date or Time screen).

• You can also change from the Last Signal screen to the Timekeeping Mode (Date or

Time screen) by pressing D.

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.

(Level 1) (Level 4) (Level 1) (Level 4)

• Even in an area where signal strength is strong, it takes about 10 seconds for signal

reception to stabilize enough for the receiving indicator to indicate signal strength.

• Use the receiving indicator as a guide for checking signal strength and for finding the

best location for the watch during signal receive operations.

• The receiving indicator (Level 4) remains on the display in all modes following

reception of the time calibration signal and calibration of the watch’s time setting. The receiving indicator (Level 4) is not displayed if signal reception was unsuccessful or after manual adjustment of the current time setting.

About Auto Receive

When auto receive is turned on, the watch automatically starts to receive the time calibration signal when the digital time in the Timekeeping Mode reaches 2:00 AM, and 4:00 AM each day (calibration times).

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 the calibration time is reached while you are making settings (while settings are flashing on the display).

OFF (Default for CAI and JRS)

1. Place the watch on a stable surface to its top (12 o’clock side) is facing in the general direction of Frankfurt, Germany.

• Position the watch so the case is pointing upwards as

shown in the nearby illustration. This puts the watch in the optimum position for time calibration signal reception.

• Note that signal reception is poor if the watch is on its

back or side.

2. In the Timekeeping Mode, hold down D for about two seconds, until the watch beeps and the current time is flashing on the display.

• This indicates that signal reception has started.

• Time calibration signal reception takes from four to 11

minutes. Take care that you do not move the watch during this time.

) indicates that the calibration time reception

Strong

After receipt of the time calibration signal turns summer time off.

After receipt of the time calibration signal turns summer time on.

OFF

Press B.

Press Bor D.

Weak

Module 2739

Strong

• Auto receipt of the calibration signal is designed to be performed early in the

morning, while you sleep (provided that the digital 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 easily receive the signal.

• The Level 4 receiving indicator (

reception attempts were successful. If you do not see the Level 4 receiving indicator, it means there was some problem with the last calibration reception operation. Either perform reception manually, or make sure the watch is set up properly to receive the time calibration signal for the next automatic reception time.

• Even if the calibration reception is successful, the Level 4 receiving indicator

disappears every day at 3am.

• When auto receive is turned on, the watch receives the calibration signal for four to

11 minutes each day when the digital time reaches 2:00 AM, and 4:00 AM. Do not operate any of the watch’s buttons within 15 minutes prior to or following the calibration times. Doing so can interfere with correct calibration.

• Remember that reception of the calibration signal depends on the time shown on the

digital display. The receive operation will be performed whenever the digital display shows 2:00 AM, and 4:00 AM, regardless of whether or not the displayed time is actually the correct time.

• When two receptions are successful, the watch uses the data of the last reception

for calibration. When only one reception is successful, the watch uses the data of the successful reception.

To turn auto receive on and off

Analog Timekeeping

The analog time of this watch is synchronized with the digital time. The analog time setting is adjusted automatically whenever you change the digital time.

Note

• Whenever you manually change the digital time setting or Home City code, or if the

time is adjusted by receipt of a time calibration signal, the hands of the analog timepiece move clockwise or counter clockwise to adjust to the new setting. If the analog time does not match the digital time for any reason, use the procedure described under “To adjust the analog time” to match the analog setting to the digital setting.

• Whenever you need to adjust both the digital and the analog time settings manually,

make sure you adjust the digital setting first.

• Depending on how much the hands have to move in order to adjust to the digital

time, it may take some time before the analog hands stop moving.

• The analog time does not change while a signal receipt operation is in progress.

After the receive operation is complete, the analog time is automatically adjusted to match the digital time.

• If a signal receive operation is performed while the analog time and digital time do

not match, the digital time will be adjusted correctly but the analog time may not be adjusted. If this happens, perform the steps below to adjust the analog time.

To adjust the analog time

Current time

When you want to do this:

Move the hand setting forward 20 seconds Move the hand setting back 20 seconds Move the hand setting a short way forward at high speed

Move the hand setting a short way back at high speed

Move the hand setting a long way forward at high speed

Move the hand setting a long way back at high speed

4. Press A to exit the setting screen.

• The minute hand will be adjusted slightly to match the seconds when you exit the

setting screen.

• To return to the Timekeeping Mode, press C.

) indicates that one or both of the last calibration time

1. In the Timekeeping Mode, hold down A until the current Auto Receive On/Off setting (the receiving indicator) starts to flash, which indicates the setting screen.

2. Press D to toggle Auto Receive on (ON) and off (OFF).

3. Press A to exit the setting screen.

1. In the Timekeeping Mode, press C five times to enter the Hand Setting Mode.

2. Hold down A until the current digital time starts to flash, which indicates the setting screen.

• Note that you will not be able to change to the setting

screen if the analog hands are moving because the watch is automatically adjusting the analog time to match the digital time. If this happens, wait until the hands stop moving.

3. Use D (+) and B (–) to adjust the analog setting as described below.

Perform this button operation:

• Press D.

• Press B.

• Hold down D.

• Release D when the hands reach the setting

you want.

• Hold down B.

• Release B when the hands reach the setting

you want.

• While holding down D to move the hands at

high-speed, press B to lock the high-speed hand movement.

• Press any button when the hands are close to

the setting you want.

• Hand movement stops automatically if the hour

hand makes one full (12-hour) revolution.

• While holding down B to move the hands at

high-speed, press D to lock the high-speed hand movement.

• Press any button when the hands are close to

the setting you want.

• Hand movement stops automatically if the hour

hand makes one full (12-hour) revolution.

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