Casio 2709 User Manual Download Page 2

USER’S GUIDE 2709

2

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 

A

 and 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
reception attempt was successful.

Receive indicator

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)
to flash, which indicates the setting screen.

2. Press 

D

 to toggle auto receive on (

ON

) and off (

OFF

).

3. Press 

B

 to exit the setting screen.

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To set the current digital time and date manually

1. In the Timekeeping Mode, press 

B

. This causes the

current auto receive on/off setting (the receive indicator)
to flash, which indicates the setting screen.

2. Press 

C

 to move the flashing in the sequence shown

below to select other settings.

Auto

Receive

Seconds

DST

Frequency

12/24-Hour 
Format

City Code

Month

Year

Minutes

Hour

Day

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Screen

Setting

Auto Receive

Frequency

City code

Button Operations

Press 

D

 to toggle auto receive on and off.

When 

TYO

 (Tokyo) is selected as the city

code, press 

D

 to 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.

Use 

D

 (+) and 

A

 (–) to change the

setting.

3. When the setting you want to change is flashing, use 

A

 and/or 

D

 to change it as

described below.

DST

12/24-Hour format

Hour, Minutes

Seconds

Month, Day, Year

Press 

D

 to 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”.

  Press 

D

 to toggle between 12-hour (

12H

)

and 24-hour (

24H

) timekeeping.

Use 

D

 (+) and 

A

 (–) to change the

setting.

Press 

D

 to reset the seconds to 

00

.

Use 

D

 (+) and 

A

 (–) to change the

setting.

4. Press 

B

 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 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.

Current time

When you want to do this:

Move the hand setting
forward 20 seconds

Perform this button operation:

Press 

D

.

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To adjust the analog time

1. In the Timekeeping Mode, press 

C

 five times to enter

the Hand Setting Mode.

2. Press 

B

 and the current digital time starts to flash,

which indicates the setting screen.

3. Use 

D

 (+) and 

A

 (–) to adjust the analog setting as

described below.

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

Press 

A

.

Hold down 

D

.

Release 

D

 when the hands reach the setting

you want.

Hold down 

A

.

Release 

A

 when the hands reach the setting

you want.

While holding down 

D

 to move the hands at

high-speed, press 

A

 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.

Move the hand setting a long
way back at high speed

While holding down 

A

 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.

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.

Summary of Contents for 2709

Page 1: ...ion 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 To set up the watch for use in the Continental United States 1 In the Timekeeping Mode press B This causes the current auto receive on off setting the receive indicator to flash which...

Page 2: ...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 to flash which indic...

Page 3: ...nge it When setting the alarm time using the 12 hour format take care to set the time correctly as a m no indicator or p m P indicator When inputting text use A and D to cycle through characters at the current cursor location and C to move the cursor to the right See Inputting Text for more information 5 Press B to exit the setting screen If you input reminder text the text appears in place of the...

Page 4: ...our Home City code the watch sets up automatically to receive from the applicable transmitter Time calibration signal reception is not possible whenever any other city code is specified as the Home City code When you select TYO as your Home City code the watch automatically selects either the Fukushima signal 40kHz or the Fukuoka Saga signal 60kHz depending on which is stronger Note that when TYO ...

Page 5: ...umber A to Z upper case to Inputting Text The following describes how to input text in the Alarm and Data Memory Modes To input characters 1 When the cursor is on the display use A and D to cycle through the available letters numbers and symbols in the sequence shown below You can input Japanese phonetic characters katakana alpha characters symbols and numbers in the text area For a complete list ...

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