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Data and Setting Scrolling
The
(REV) and
(FWD) keys are used in various modes and setting
screens to scroll through data on the display. In most cases, holding down these keys
during a scroll operation scrolls through the data at high speed.
Initial Screens
When you enter the Telememo or World Time Mode, the data you were viewing when
you last exited the mode appears first.
Timekeeping
• Pressing
while setting the current time in the Timekeeping Mode resets the
second's count to zero. Pressing
59 resets the seconds to 00 and adds 1 to the minutes. In the range of 00 to 29, the
minute's count is unchanged.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
• The year can be set in the range of 2000 to 2099. Going past December 31, 2099
reverts to January 1, 2000.
• The watch's built-in full automatic calendar automatically makes allowances for
different month lengths and leap years. Once you set the date, there should be no
reason to change it except after you have the watch's battery replaced.
12-hour/24-hour Timekeeping
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in the World Time and Alarm Modes.
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 pm. The A (AM) indicator is shown from midnight
to 11:59 am.
• With the 24-hour format, times are indicated in the range of 0:00 to 23:59, without
any indicator.
World Time Mode
• The current times in all World Time Mode cities are calculated in accordance with
the Greenwich Mean Time (GMT) differential for each city, based on the current
Time Zone City time setting in the Timekeeping Mode.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.
• The second's count of the World Time is synchronized with the second's count of the
Timekeeping Mode.
Time Calibration Signal Reception Precautions
• This watch receives the time calibration signal (Call
2,000 miles
1,200 miles
Sign: WWVB) transmitted from Fort Collins, Colorado.
Signal reception is possible within a radius of about
2,000 miles (3,000 kilometers) from the Fort Collins
transmitter.
• The current time setting in accordance with the time
calibration signal takes priority over any time settings
you make.
• The Fort Collins time calibration signal includes DST
Fort Collins
data.
• 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.
• The daily alarm and hourly time signal do not operate during signal reception.
• Even when the watch is within the reception range, signal reception is 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.
• The time calibration signal is bounced off the ionosphere. Because of this, such
factors as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
• This watch receives the time calibration signal transmitted from Fort Collins,
Colorado. This means that reception is best when the antenna built into the 12
o'clock edge of the watch is facing towards Fort Collins. Note, however, that moving
the watch while the time calibration signal receive operation is taking place will make
stable reception impossible.
• Think of the watch as acting like a TV or radio when it is receiving the calibration
signal. When receiving indoors, move to a location as near as possible to a window.
Proper signal reception can be difficult or even impossible under the conditions
listed below.
Near TVs, refrigerators, computers, or other household appliances
Far away from broadcasting stations among ferro-concrete structures or near
mountains
Underground, in tunnels or in ferro-concrete buildings
Near high-tension wires, neon signs, or radio stations with interfering frequencies
Near railroads, highways or airports
In trains or cars
• Radio interference can make signal reception impossible.
• Strong electrostatic charge can result in the wrong time being set.
• If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±15 seconds a month at normal temperature.
while second's count is in the range of 30 to
Backlight Precautions
The backlight uses an EL (electro-luminescent) panel that causes the entire display to
glow for easy reading in the dark. In any mode (except for the Stopwatch Mode),
press D to illuminate the display for about two seconds.
• The electro-luminescent panel that provides illumination loses power after very long
use.
• The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
• The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
• The backlight automatically turns off whenever an alarm sounds.
• Frequent use of the backlight shortens the battery life.
About the Battery
The indicator BATT flashes on the display whenever battery power is below a certain
level. Low battery power can cause the following conditions to occur.
• Dim, difficult-to-read display characters
• Failure of the backlight and alarm operations
• Failure of time calibration signal reception
• Inability to input or recall Telememo data
If battery power goes low while you are inputting Telememo data, the data you are
inputting may not be saved in memory. Normal watch operation will return after the
BATT indicator disappears. If it does not disappear, have the battery replaced.
ALWAYS LEAVE BATTERY REPLACEMENT UP TO THE DEALER WHERE
YOU BOUGHT THE WATCH OR TO AN AUTHORIZED CASIO DISTRIBUTOR.
BE SURE TO SHOW THE FOLLOWING INFORMATION TO THE PERSON
REPLACING THE BATTERY.
RECOVER Message
Certain functions consume large amounts of battery power, and using them too much
can cause a sudden momentary drop in battery power. The watch monitors how much
you use these high consumption functions, and displays the RECOVER message
whenever it determines you are using them too much.
• Backlight and alarm operation, time calibration signal reception, and all Telememo
operations are disabled while RECOVER is on the display.
• The following are the trigger values for functions that are monitored for battery usage.
High Power Consumption Function
Backlight
Signal Receive
Button Input Tone
• RECOVER appears whenever any of the above operations is performed individually
in succession for the number of times indicated by its trigger value. RECOVER also
appears when a combination of functions reaches a trigger value. Examples: 50
backlight operations + 50 signal receive operations, 25 backlight operations
+ 25 signal receive operations, + 800 button input tone operations, etc.
• RECOVER disappears from the display after the battery recovers its normal power
level after it has a chance to "rest."
Attention dealer or CASIO distributor
Be sure to use the following procedure when replacing the battery.
1. Open and remove the back cover.
• Opening the back cover causes the message OPEN to appear on the display.
• If CLOSE appears on the display when you open the back cover, replace the
back cover. Wait for a few minutes and try again.
2. Remove the battery holder.
3. Remove the old battery and load a new one.
4. Replace the battery holder.
5. Touch the AC contact and the battery [+] side with metallic tweezers.
• The AC (all clear) operation DOES NOT delete Telememo data stored in memory.
6. Close the back cover.
7. Press any button besides A. This causes the watch to start an internal data check,
which is indicated by CHECK appearing on the display. The Timekeeping Mode
display appears after the internal check is complete.
• The internal check takes up to five or six minutes. All watch buttons are disabled
during that time.
2296-5
Trigger Value
100 operations
100 operations
1,600 operations
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