Casio 4319 Owner's Manual

MO0905-EA

Operation Guide 4319

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, read this manual carefully.

Expose the watch to bright light to charge its battery before using it.

You can use this watch even as its battery is being charged by exposure to bright light.

•Read “Power Supply” of this manual for important information you need to know when exposing the watch to bright light.

Keep the watch exposed to bright light

		Bright Light					The electricity generated by the solar cell of the watch is
							stored by a built-in battery. Leaving or using the watch
l	l	l l l	l	l l l	l	l	where it is not exposed to light causes the battery to run
							down. Make sure the watch is exposed to light as much as
Solar cell							possible.
							• When you are not wearing the watch on your wrist,
							position the face so it is pointed at a source of bright
							light.
							• You should try to keep the watch outside of your sleeve
							as much as possible. Charging is reduced significantly if
							the face is only partially covered.

• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will result in some watch functions to be disabled. If the battery goes dead, you will have to re-configure watch settings after recharging. To ensure normal watch operation, keep it exposed to light as much as possible.

Battery charges in the light.			Battery discharges in the dark.
Solar cell	Bright Light	Electrical
(Converts light to
electrical power.)		energy
	LEVEL 1	All		LEVEL 1
	LEVEL 2	functions		LEVEL 2
		enabled			Some or all
	LEVEL 3		Dis-	LEVEL 3
					functions
Charge			charge	LEVEL 4
	LEVEL 4				disabled

Rechargeable battery

General Guide

•Press Cto change from mode to mode.

•In any mode, press B to illuminate the face of the watch.

		Battery Level Indicator
	Timekeeping Mode
		Press C.
		▲
		▲
	Radio-controlled Timekeeping
	Hour hand	This watch receives a time calibration signal and updates
		its time setting accordingly. The time calibration signal
	Minute hand
		includes both Standard Time and Daylight Saving Time
		(summer time) data.

•This watch is designed to pick up the time calibration signals transmitted from Fort Collins, Colorado in the United States, and from Fukushima and Fukuoka/Saga in Japan.

	Day
Day of week	Second hand

Current Time Setting

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

•The first thing you should do after purchasing this watch is to set your Home City, which is the city where you normally will use the watch. For more information, see “To set your Home City” below.

•When using the watch in an area that is outside the ranges of its time calibration signal reception, you need to adjust the time and date as required manually. See “Timekeeping” for details about manual settings.

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

setting. See “Analog Timekeeping” for more information.

To set your Home City

ll l l l l l l
l		l
l		l
l		l
l	l l l l l l	l

City code

1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.

•The second hand will move at high speed to the 12 o’clock position, where it will stop.

2.Use D(east) and B(west) to select the city code you want to use as your Home City.

•The following are the city codes for time zones that support time calibration reception.

HKG: Hong Kong SEL: Seoul TYO: Tokyo HNL: Honolulu ANC: Anchorage LAX: Los Angeles DEN: Denver CHI: Chicago NYC: New York

•The actual level at which some functions are disabled depends on the watch model.

•Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function has turned off the display to conserve power.

• See “Power Saving Function” for more information.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.

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.

World Time Mode	Alarm Mode
▲	▲
Hand Setting Mode	Stopwatch Mode
▲	▲

3. Press Ato exit the setting screen.

•The second hand will advance at high speed to the correct position in accordance with seconds count of the digital time, and resume normal movement from there.

•Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive (in the middle of the night). You can also perform manual receive or you can set the time manually.

•If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.

•The watch will receive the time calibration signal automatically from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between city codes and transmitters, see “Transmitters”.

To display the digital time and last signal screen

•In the Timekeeping Mode, press Dto display the last signal screen. The last signal screen shows the date and time of the last successful time calibration signal reception.

•In the Timekeeping Mode, press Ato cycle through the digital time screens as shown below.

Date Screen				Receiving indicator
Day	▲Receiving
Press A.		Indicator and		Seconds
		Seconds Count
▲			▲	A
		Current Time
A				Hour :
		Screen
Day of week Or				Minutes
				PM indicator

▲2 seconds

Press D. Reception date		Reception Time
▲		2 seconds
Last Signal Screen	2 seconds

1

Receiving indicator

Operation Guide 4319

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.

•Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. For more information, see “About Auto Receive”.

•Manual Receive

Manual receive lets you start time calibration signal reception with the press of a button. For more information, see “To perform manual receive”.

Important!

•When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. Make sure there are no metal objects nearby.

12 o’clock

or

•Make sure the watch is facing the right way.

•Proper signal reception can be difficult or even impossible under the conditions listed below.

Inside or	Inside a	Near	Near a	Near high-	Among or
among	vehicle	household	construction	tension	behind
buildings		appliances,	site, airport, or	power lines	mountains
		office	other sources
		equipment,	of electrical
		or a mobile	noise
		phone

•Signal reception normally is better at night than during the day.

•Time calibration signal reception takes from two to seven minutes, but in some cases it can take as long as 14 minutes. Take care that you do not perform any button operations or move the watch during this time.

	Reception Ranges
	U.S. Signal	Japan Signals
	2,000 miles	500 kilometers
	(3,000 kilometers)	Fukushima
		1,000 kilometers
	600 miles
	(1,000 kilometers)	500 kilometers
	Fort Collins
		Fukuoka/Saga
		1,000 kilometers

Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference may also cause problems with reception. Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)

Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)

•Even when the watch is within the reception range of the transmitter, signal reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

•Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

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

About Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. The start times of the auto receive operations depend on the current Home City and DST settings.

Home City: HKG, SEL, TYO, HNL, ANC, LAX, DEN, CHI, NYC

Standard Time Auto Receive Times:

Midnight, 1:00 a.m., 2:00 a.m., 3:00 a.m., 4:00 a.m., 5:00 a.m. DST Auto Receive Times:

Midnight, 1:00 a.m., 2:00 a.m., 3:00 a.m., 4:00 a.m., 5:00 a.m.

Note

•Auto receive is performed only if the watch is in the Timekeeping Mode or World Time Mode when one of the calibration times is reached. It is not performed if a calibration time is reached while an alarm is sounding, or while you are configuring settings (while settings are flashing on the display).

•When a reception time is reached, the second hand stops at 12 o’clock and reception starts. The second hand remains stopped until reception is complete.

•Auto receive of the calibration signal is designed to be performed early in the morning, while you sleep (provided that the Timekeeping Mode 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 receive the signal easily.

•When auto receive is turned on, the watch receives the calibration signal for two to seven minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. Do not perform any button operation within seven minutes before or after any one of the calibration times. Doing so can interfere with correct calibration.

•Remember that reception of the calibration signal depends on the time kept in the Timekeeping Mode. The receive operation will be performed whenever the display shows any one of the calibration times, regardless of whether or not the Timekeeping Mode time actually is the correct time.

About the Receiving Indicator

The receiving indicator shows the strength of the calibration signal being received. For best reception, keep the watch in a location where signal strength is strongest.

Receiving indicator

Weak		Strong
(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 reception.

•The Level 4 receiving indicator indicates that at least one of the auto calibration signal receive operations was successful. Note, however, that the Level 4 receiving indicator is cleared from the display at the first auto receive time of the following day.

•The Level 4 receiving indicator appears on the Timekeeping Mode’s Receiving Indicator and Seconds Count screen only. The Level 4 receiving indicator is not displayed if signal reception was unsuccessful or after manual adjustment of the current time setting.

To perform manual receive

1. Place the watch on a stable surface so its 12 o’clock side is facing towards a window.

					2. In the Timekeeping Mode, hold down Dfor about two
	ll l l l				seconds until the watch beeps.
l					3. Release D and RC flashes to indicate that signal
				l	reception has started.
l
			l		• When reception starts, the second hand will move at
l			l	l
	l	l l l			high speed to the 12 o’clock position where it will stop

until reception is complete.

• Time calibration signal reception normally takes from two to seven minutes, but in some cases it can take as long as 14 minutes. Take care that you do not perform any button operations or move the watch during this time.

• After signal reception is complete, the display of the watch changes to the last signal screen.

Note

•To interrupt reception and return to the Timekeeping Mode, press D.

•If reception is unsuccessful, the message ERR 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 ERR screen to the normal timekeeping screen by pressing D.

To turn auto receive on and off

1. In the Timekeeping Mode, press D to display the Last

On/Off status							Signal screen.
							2. Hold down A until the current auto receive setting (ON
							or OF) starts to flash. This is the setting screen.
	ll		l	l l			• The second hand will move at high speed to the 12
l							o’clock position, where it will stop.
					l		• Note that the setting screen will not appear if the
l						l
l						l	currently selected Home City is one that does not
	l	l	l l		l
							support time calibration reception.

3. Press Dto toggle auto receive on (ON) and off (OF). 4. Press Ato exit the setting screen.

• The second hand will advance at high speed to the correct position in accordance with the digital time seconds count, and resume normal movement from there.

• For information about city codes that support signal reception, see “To set your Home City”

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

Problem	Probable Cause	What you should do
Cannot perform	• The watch is not in the Timekeeping	• Enter the Timekeeping Mode
manual receive.	Mode.	and try again.
	• Your current Home City is not one of the	• Select HNL, ANC, LAX,
	following city codes: HNL, ANC, LAX,	DEN, CHI, NYC, HKG, SEL
	DEN, CHI, NYC, HKG, SEL or TYO.	or TYO as your Home City.
Auto receive is	• You changed the time setting manually.	• Perform manual receive or
turned on, but	• The watch was not in the Timekeeping	wait until the next auto
the Level 4	or World Time Mode, or you were	receive is performed.
receiving	performing some button operation	• Check that the watch is in a
indicator does	during auto receive.	location where it can receive
not appear on	• Even if reception is successful, the	the signal.
the Timekeeping	Level 4 receiving indicator disappears
Mode display.	each day when the first auto receive
	operation of the day is performed.
	• Time data (hour, minutes, seconds) only
	was received during the last reception.
	The Level 4 receiving indicator appears
	only when time data and date data
	(year, month, day) are both received.
Time setting is	• If the time is one hour off, the DST	• Change the DST setting to
incorrect	setting may be incorrect.	Auto DST.
following signal	• The Home City code setting is not	• Select the correct Home City
reception.	correct for the area where you are using	code.
	the watch.

• For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlled Timekeeping Precautions”.

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