Casio 5055 - Manual (Page 3)

Operation Guide 5055
3
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
• You performed some button operation
during the auto receive operation.
• The watch is not in the Timekeeping
Mode or World Time Mode.
• The watch is in a location where the
signal cannot be received for some
reason.
• A countdown timer operation is in
progress.
• Radio interference is often present
during the day time, which can
interfere with calibration signal
reception.
I can’t
receive a
time
calibration
signal. • Perform manual signal
receive at night or wait until
the next auto signal receive
operation is performed.
• Enter the Timekeeping
Mode or World Time Mode
and try again.
• Enter the Countdown Timer
Mode and stop the
countdown.
• Check to make sure the
watch is in a location where
it can receive the signal.
Probable Cause Problem What you should do
Time setting
is incorrect
following
signal
reception. • If the time is one hour off, the DST
setting may be incorrect.
• The Home City code setting is not
correct for the area where you are
using the watch.
• The home position of the hands is off.
• Change the DST setting to
Auto DST.
• Select the correct Home
City code.
• Enter the home position
adjustment mode and adjust
the home position.
• For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Atomic Timekeeping Precautions”.
World Time
World Time shows the current time in 48 cities (29 time
zones) around the world. A simple operation swaps your
Home City with the currently selected World Time city.
• The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check to make sure you
have the correct city selected as your Home City. Also
check to make sure that the current time as shown in
the Timekeeping Mode is correct.
• Select a city code in the World Time Mode to display the
current time in any particular time zone around the
globe. See the “City Code Table” for information about
the UTC offset settings that are supported.
• All of the operations in this section are performed in the World Time Mode, which
you enter by pressing C.
City code
Current time in
selected city
To view the current time in another time zone
In the World Time Mode, use D to scroll through available city codes (time zone).
Holding down the button scrolls at high speed.
• When the city code (time zone) you want is selected, you can press A to display
the date. After about one second, the watch will resume regular timekeeping.
▲ Press A.
One second
Date Hour : Minutes Seconds
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, press D to display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down A for about three seconds to toggle
between Daylight Saving Time ( DST indicator
displayed) and Standard Time ( DST indicator not
displayed).
• The DST indicator is shown on the World Time Mode
screen while Daylight Saving Time is turned on.
DST indicator
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 A and B until the watch beeps.
• 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.
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two finishes.
• The digital display range of the stopwatch is 23 hours,
59 minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• The stopwatch hand will function as a 1/20-hand during
the first second of an elapsed time operation. After that,
it will function as a second hand until the first minute
elapses. After that it will function as a minute hand.
Whenever an elapsed time operation is stopped, the
stopwatch hand will indicate the current seconds count.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode. 1/100 second
Hours
Minutes
Seconds
Stopwatch hand
• Exiting the Stopwatch Mode while a split time is frozen on the display clears the split
time and returns to elapsed time measurement.
• All of the operations in this section are performed in the Stopwatch Mode, which you
enter by pressing C.
To measure times with the stopwatch
Elapsed Time
Clear
D
Start Stop Re-start Stop
D D D ➤ ➤ ➤ A ➤
Split Time
D
Start Split
(
displayed)
Split release Stop
A D A ➤ ➤ ➤
Clear
A ➤
D
Start Split
First runner
finishes.
Display time of
first runner. Stop
Second runner
finishes. Split release
Display time of
second runner.
D A A ➤ ➤ ➤
Clear
A ➤
Two Finishes
Countdown Timer
You can set the countdown timer within a range of one
minute to 60 minutes. An alarm sounds when the
countdown reaches zero.
• You also can select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
Seconds
Minutes
Start time (minutes)
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
• When the end of the countdown is reached and auto-repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button. The countdown
time is automatically reset to its starting value after the alarm stops.
• When auto-repeat is turned on, the countdown will restart automatically without
pausing when it reaches zero. The alarm sounds to signal when the countdown
reaches zero. The countdown is repeated up to eight times, and then stop.
• The number of the current repeat (1 to 8) is shown in the lower display.
• The countdown timer measurement operation continues even if you exit the
Countdown Timer Mode.
• To stop a countdown timer operation completely, first pause it (by pressing D), and
then press A. This returns the countdown time to its starting value.
To configure countdown start time and auto-repeat settings
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A for about three
seconds until the minute setting of the countdown start
time starts to flash, which indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” to
display it.
2. Press C to move the flashing in the sequence shown
below, and select the setting you want to change.
Start Time
(Minutes)
Auto-Repeat
On/Off
C
3. Perform the following operations, depending on which setting is currently selected
on the display.
• While the start time setting is flashing, use D (+) and B (–) to change it.
• While the auto-repeat on/off setting (0N or 0FF) is flashing on the display, press
D to toggle auto-repeat on (0N) and off (0FF).
ll
llll ll
lll
Start time (minutes)
4. Press A to exit the setting screen.
• The auto-repeat on indicator ( ) is displayed on the Countdown Timer Mode screen
while this function is turned on.
• Frequent use of auto-repeat and the alarm can run down battery power.