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Casio 4777 Manual

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Operation Guide 4777
3
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
• For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Atomic Timekeeping Precautions”.
• You changed the time setting
manually.
•
You performed some button operation
during the auto receive operation.
• The stopwatch is performing an
elapsed time measurement operation.
• Signal reception results are reset at
the first time of the next receive
period.
• The Home City setting is not correct
for the area where you are using
the watch.
•
The home position of the hands is off.
The
stopwatch
second hand
is pointing at
N (NO).
The time
setting is
incorrect
following signal
reception.
• Perform manual signal
receive or wait until the next
auto signal receive operation
is performed.
• Stop the stopwatch operation.
• Check to make sure the watch
is in a location where it can
receive the signal.
• Select the correct Home City.
• Enter the Home Position
Adjustment Mode and adjust
the home position.
What you should doProblem Probable Cause
Stopwatch
The stopwatch lets you measure elapsed time.
• When you enter the Stopwatch Mode, the stopwatch
1/20 second hand and the stopwatch minute hand move
to 0.
• You can start elapsed time measurement with the
stopwatch while the watch is in the Stopwatch Mode or
the Timekeeping Mode.
• The display range of the stopwatch is 59 minutes, 59.95
seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• You cannot switch to another mode while a stopwatch
elapsed time operation is in progress.
30
Stopwatch second hand
Stopwatch 1/20
second hand
Stopwatch
minute hand
To start an elapsed time operation while in the Stopwatch Mode
1. In the Timekeeping Mode, press D to enter the Stopwatch Mode.
2. In the Stopwatch Mode, press B to start elapsed time measurement.
3. Press B to stop elapsed time measurement.
• You can restart and stop elapsed time measurement as many times as you like by
pressing B.
• The 1/20 second hand rotates during the first 60 seconds only, and then stops.
When elapsed timing is stopped (by pressing B), the 1/20 second hand jumps to
the 1/20 second indication (which is kept internally).
4. Check the elapsed time.
• After you are finished measuring elapsed time, press D to reset the stopwatch to all
zeros. The stopwatch will reset to all zeros even if you press D while elapsed time
measurement is in progress.
• To return to the Timekeeping Mode, press D while the stopwatch is reset to all
zeros.
To start an elapsed time operation while in the Timekeeping Mode
1. In the Timekeeping Mode, press B to start elapsed time measurement.
• After pressing B in the Timekeeping Mode, elapsed time measurement will not
start for about one second.
• The elapsed time operation will not start if you press B in the Timekeeping Mode
while either of the following conditions exists.
When an alarm is turned on
While the watch is changing from one date to the next (at midnight)
2. Press B to stop elapsed time measurement.
• You can restart and stop elapsed time measurement as many times as you like by
pressing B.
• The 1/20 second hand rotates during the first 60 seconds only, and then stops.
When elapsed time measurement is stopped (by pressing B), the 1/20 second
hand jumps to the 1/20 second indication (which is kept internally).
3. Check the elapsed time.
• After you are finished measuring elapsed time, press D to reset the stopwatch to all
zeros. The stopwatch will reset to all zeros even if you press D while elapsed time
measurement is in progress.
• To return to the Timekeeping Mode, press D while the stopwatch is reset to all
zeros.
World Time
The World Time Mode shows you the current time in 27
cities (29 time zones) around the world. A simple
operation swaps your Home City with the currently
selected World Time city.
• When you enter the World Time Mode, the hour and
minute hands move to the current time in the currently
selected World Time city.
• If the current time shown for a city is wrong, check your
Home City settings and make the necessary changes.
• All of the operations in this section are performed in the
World Time Mode.
3
0
30
Current time (hour) in the
currently selected World
Time city
Minutes
Seconds
City code
To view the time in another city
In the World Time Mode, use D to move the stopwatch second hand to the city code
of the city you want to select as the World Time city.
• The hour hand, minute hand, and date display will change automatically to the
applicable settings for the currently selected city code.
• The day of the week hand shows whether or not Daylight Saving Time (summer
time) is turned off for the currently selected city code.
• All button operations are disabled while the hands and date display are changing.
• The watch will beep if the city code you select is your current Home City.
• For full information on city codes, see the “City Code Table”.
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to select the city code
whose Standard Time/Daylight Saving Time setting you
want to change.
2. Hold down A for about two seconds until the watch
beeps. This will cause the day of the week hand to
toggle between ON (Daylight Saving Time) and OFF
(Standard Time).
• Note that you cannot switch between Standard Time and
Daylight Saving Time while GMT is selected as the city
code.
• Note that the Standard Time/Daylight Saving Time
setting affects only the currently displayed city code.
Other city codes are not affected.
• The Standard Time/Daylight Saving Time setting of your
Home City can be changed in the Timekeeping Mode
only. See “To set the time and date manually” for more
information.
30
Hold down
A for two
seconds.
▲
▲
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time city. This
changes your Home City to your World Time city, and your World Time city to your
Home City. This capability can come in handy when you frequently travel between two
cities in different time zones.
• If your current World Time city supports receipt of a time calibration signal, making it
your Home City enables calibration signal reception.
• For information about which cities support time calibration signal reception, see “To
specify your Home City”.
To swap your Home City and World Time city
1. In the World Time Mode, use D to select the World Time city you want.
2. Hold down B for about two seconds until the watch beeps twice.
• This will make the World Time city (which you selected in step 1), your Home City. At
the same time, it changes the Home City you had selected prior to step 2 your World
Time city.
• After swapping the Home City and World Time city, the watch stays in the World
Time Mode with the city that was selected as the Home City prior to step 2 now
displayed as the World Time city.
Alarm
When the alarm is turned on, the alarm sounds when the
alarm time is reached.
• Entering the Alarm Mode causes the stopwatch second
hand to move to the current alarm on (ON) or alarm off
(OFF) setting, while the hour, minute, and 24-hour
hands move to the current alarm time setting.
• All of the operations in this section are performed in the
Alarm Mode.
To set an alarm time
1. In the Alarm Mode, hold down A for about two
seconds until the watch beeps twice. This indicates it is
in the setting mode.
• The stopwatch second hand will move to ON (alarm
on) at this time.
3
0
Mode indicator
2. Use D (+) and B (–) to change the alarm time setting.
• Each press of either button moves the hands one-minute.
3. After setting the alarm time, press A to exit the setting mode.
• Setting the alarm time causes the alarm to turn on automatically.
• As you set the alarm time, take care to ensure that the 24-hour hand also is at the
correct position.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the
watch is in.
• Alarm operations are performed in accordance with the Timekeeping Mode time.
• Pressing any button stops the alarm tone operation.
To toggle an alarm on and off
In the Alarm Mode, press A to toggle the alarm ON and OFF.
• The watch will beep when you turn on the alarm.
Adjusting the Home Positions
If the time and date settings are wrong even after the time calibration signal is
received normally, use the following procedure to adjust their home positions.
To adjust the home positions
1. In the Timekeeping Mode, as you hold down A, hold
down C for about two seconds until the watch beeps.
• This indicates that the watch is the time and date
home position adjustment mode.
• If the timekeeping second hand moves to “0”, it is in
the correct home position. If it doesn’t, use D to
move the timekeeping second hand to “0”.
• The stopwatch second hand is also in the proper
home position if it moves to 12 o’clock. If it doesn’t,
press B to move it to 12 o’clock.
30
Stopwatch second hand
Timekeeping second hand
Correct timekeeping second
hand and stopwatch second
hand home position
2. After confirming that the timekeeping second hand and
stopwatch second hand are both at the proper home
positions, press C.
This will switch to hour hand and minute hand home
position adjustment.
• The hour hand and minute hand are at their proper
home positions if they both move to 12 o’clock, and if
the 24-hour hand is pointing at hour 24. If the hands
are not positioned correctly, use D (+) and B (–) to
move all three hands to their proper home positions.
• The 24-hour hand moves in accordance with the hour,
minute, and second settings. As you set the time, take
care to ensure that the 24-hour hand also is at the
correct position.
30
Minute hand Hour hand
24-hour hand
Correct hour and minute
hand home position
3


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