Casio 2709 Owner's Manual

USER’S GUIDE 2709

About This Manual

•Button operations are indicated using the letters shown in the illustration.

•Each section of this manual provides you with the

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

General Guide

•Press Cto change from mode to mode.

•In any mode, press Lto illuminate the display.

World Time Mode

Timekeeping Mode

Press C.

▲

▲

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

• In the Timekeeping Mode, press Dto change the screen format as shown below.

Date and Time		Analog	Seconds
	Day of week		▲
Month – Day		Press D.
		▲
		Seconds and Date	▲
			Date
		▲
PM	Seconds		▲
indicator

Hour : Minutes

•Pressing Adisplays the Last Signal screen (date and time the time calibration signal was last received) in the Timekeeping Mode.

Press A.		Receive date
▲	▲	Receive time

Last Signal Screen

Current Time Setting

This watch automatically adjusts its time setting in accordance with a time calibration signal. You can also perform a manual procedure to set the time and date, when necessary.

•Before using the watch in the Continental United States, first use the procedure under “Setting Up the Watch for Use in the Continental United States” to set the time in accordance with a time calibration signal.

•Note that after you set your Home City (the city where you normally use the watch) 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.

•Before using the watch in Japan, first specify your Home City, select the DST setting you want to use, and then perform the procedure under “To perform manual time calibration signal reception”.

Setting Up the Watch for Use in the Continental United States

You need to make the following three settings before using this watch in the Continental United States. The following provides a general overview of the setting procedure. For full details, see “Setting the Time and Date Manually” and “Time Calibration Signal Reception”.

•Specify the city code for your Home City (the city where you will normally use the watch).

•Select the auto summer time (DST) setting.

•Perform the manual time calibration signal receive operation to set the current time.

			Alarm Mode					Data Memory Mode
	▲							▲
									▲
							Hand Setting Mode		Stopwatch Mode
								▲
	To set up the watch for use in the Continental United States
	GMT differential					City code		1. In the Timekeeping Mode, press B. This causes the
								current auto receive on/off setting (the receive indicator)
					l l l	ll
				l				to flash, which indicates the setting screen.
							l
			l				l	2. Press Ctwice to move the flashing to the city code
			l
				l	l l l	l	l	setting.
								3. Use D(+) and A(–) to select the city code you want to
								use as your Home City.
								• The following are the city codes for major cities in the
			Receive indicator					Continental United States time zones.
								LAX: Los Angeles, San Francisco, Las Vegas, Seattle
		l l ll						DEN: Denver, El Paso
	ll							CHI: Chicago, Houston, Dallas/Fort Worth, New Orleans
				l				NYC: New York, Detroit, Miami, Boston
	l			l
		l ll						4. Press C to display the summer time (DST) setting
								screen.
								5. Use Dto select AUTO DST.
								• AUTO DST specifies auto switching between Daylight
								Saving Time and Standard Time.
								6. Press B to exit the setting screen.
								• If you changed the digital time setting with the above
								steps, the analog hands move at this time to match it.
								Wait until the analog hands stop moving before you
								advance to the next step.
								7. Hold down Afor about two seconds until the watch
								beeps.
			Receive indicator					• Release Aand the message receiving appears to
								indicate that signal reception has started.

•Time calibration signal reception takes from two to six minutes. Take care that you do not move the watch during this time.

•If the watch is indoors, we recommend that you place the watch near a window to allow better signal reception.

•After signal reception is complete, the display of the watch changes to the Last Signal screen, and the analog time of the watch is adjusted automatically.

Time Calibration Signal Reception

This watch is designed to pick up a time calibration signal 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 three times each day and makes appropriate adjustments. With Manual Receive, you perform a specific button operation to receive the calibration signal.

Before performing a signal receive operation, remove the watch from you wrist and position it as shown in the illustrations below.

•If your watch has a resin band, pass the end of the band through the band loop and place the watch on a stable surface.

Resin band

Metal band

Pass through band loop.

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USER’S GUIDE 2709

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.

•Note that signal reception is possible only when the watch is within range of a time calibration signal transmitter, and a city code that supports signal reception is selected as the Home City code.

•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.

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

•Time calibration signal reception is disabled while the analog hands are moving after you change the digital time setting.

•See the information under “Time Calibration Signal Reception” if you experience problems with time calibration signal reception.

To perform manual time calibration signal reception

1.Place the watch on a stable surface so its top (12 o'clock side) is facing in the general direction of the signal transmitter.

•Note that signal reception is poor if the watch is on its back or side.

2.In the Timekeeping Mode, hold down A for about two

seconds until the watch beeps.

• Release Aand the message receiving appears to indicate that signal reception has started.

• Time calibration signal reception takes from two to six minutes. Take care that you do not move the watch during this time.

•After signal reception is complete, the display of the watch changes to the Last Signal screen, and the analog time of the watch is adjusted automatically.

•The receive indicator indicates that the calibration time

Receive indicator reception attempt was successful.

Note

•To interrupt a receive operation and return to the Timekeeping Mode, press A.

•If the receive operation is unsuccessful, the message ERROR! appears on the display for about one or two minutes. After that, the watch returns to the Timekeeping Mode.

•You can also change from the Last Signal or ERROR! screen to the normal timekeeping screen by pressing A.

About the Receive Indicator

The receive 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.

Weak Strong

•Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the receive indicator to indicate signal strength.

•Use the receive indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.

•The receive indicator remains on the display in all modes following reception of the time calibration signal and calibration of the watch’s time setting. The receive indicator does not appear 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, 4:00 AM and 6:00 AM each day (calibration times).

Note

•The auto receive operation is performed only if the watch is in the Timekeeping or World Time Mode when one of the calibration times is reached.

It is not performed if a calibration time is reached while you are making settings (while settings are flashing on the display), while an alarm is sounding, or while a silent alert operation is being performed.

•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 receive indicator indicates that either the 2:00 AM, 4:00 AM, or 6:00 AM calibration signal reception was successful. Note, however, that the receive indicator is cleared from the display at 3:00 AM each day.

•If you do not see the receive indicator except for the above reason, it means there was some problem with the 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.

•When auto receive is turned on, the watch receives the calibration signal for two to six minutes each day when the digital time reaches 2:00 AM, 4:00 AM and 6:00 AM. Do not operate any of the watch’s buttons within six 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, 4:00 AM and 6:00 AM, regardless of whether or not the displayed time is actually the correct time.

•When two or three 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

							1. In the Timekeeping Mode, press B. This causes the
							current auto receive on/off setting (the receive indicator)
			ll				to flash, which indicates the setting screen.
l		l					2. Press Dto toggle auto receive on (ON) and off (OFF).
l					l		3. Press Bto exit the setting screen.
l				l
l		l				l
	l	l			l
l				l
			l
l
	l	l

Setting the Digital Time and Date Manually

Make sure you select your Home City code (the city code whose time and date you are setting) before change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.

To set the current digital time and date manually

1. In the Timekeeping Mode, press B. This causes the

l

ll

current auto receive on/off setting (the receive indicator)

l

to flash, which indicates the setting screen.

l

l

ll

l

ll

2. Press Cto move the flashing in the sequence shown

l

l

l

l

below to select other settings.

l

l

l

Auto

Frequency

City Code

DST

12/24-Hour

Receive

Format

Day

Month

Year

Minutes

Hour

Seconds

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

Setting	Screen	Button Operations
Auto Receive		Press Dto toggle auto receive on and off.
Frequency		When TYO (Tokyo) is selected as the city
		code, press Dto toggle the calibration
		signal reception frequency among Auto
		(FREQ. AT), 40KHz (FREQ. 40) and 60KHz
		(FREQ. 60). Note that frequency selection
		is available for the TYO city code only.
City code		Use D(+) and A (–) to change the
		setting.
DST		Press Dto toggle between Daylight Saving
		Time (ON) and standard time (OFF).
		• Pressing D performs a different operation
		when HKG, TYO, SEL, NYC, CHI, DEN,
		LAX, ANC or HNL is selected as Home
		City Code. See “Auto Summer Time (DST)
		Switching”.
12/24-Hour format		Press Dto toggle between 12-hour (12H)
		and 24-hour (24H) timekeeping.
Hour, Minutes		Use D(+) and A (–) to change the
		setting.
Seconds		Press Dto reset the seconds to 00.
Month, Day, Year		Use D(+) and A (–) to change the
		setting.

4. Press Bto 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 city codes.

•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.

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

•The hands for the analog timepiece move to adjust to a new setting whenever any of the following occurs.

When you change the digital time setting manually

When the digital time setting is changed by time calibration signal reception When you change the Home City code and/or DST 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.

To adjust the analog time

1. In the Timekeeping Mode, press Cfive times to enter

the Hand Setting Mode.

2. Press Band the current digital time starts to flash,

l l l l

which indicates the setting screen.

3. Use D(+) and A(–) to adjust the analog setting as

l

l

ll

l

described below.

l

l

l l

l l

l

l

Current time

When you want to do this:

Perform this button operation:

Move the hand setting

• Press D.

forward 20 seconds

Move the hand setting back

• Press A.

20 seconds

Move the hand setting a short

• Hold down D.

way forward at high speed

• Release D when the hands reach the setting

you want.

Move the hand setting a

• Hold down A.

short way back at high speed

• Release A when the hands reach the setting

you want.

Move the hand setting a

• While holding down Dto move the hands at

long way forward at high

high-speed, press Ato lock the high-speed

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.

Move the hand setting a long

• While holding down Ato move the hands at

way back at high speed

high-speed, press Dto 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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