User manual

Operation Guide 4792
3
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal
reception.
• 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 midnight each day.
• Radio interference is often
present during the day time,
which can interfere with
calibration signal reception.
• The Home City setting is
not correct for the area
where you are using the
watch.
The stopwatch
second hand is
pointing at N
(NO).
The time setting
is incorrect
following signal
reception.
• Perform manual signal
receive at night 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.
What you should doProblem Probable Cause
• For further information, see “Important!” under “Time Calibration Signal
Reception” and “Radio-controlled Atomic Timekeeping Precautions”.
World Time
The World Time Mode shows you the current
time in 27 cities (29 time zones) around the
world.
• When you enter the World Time Mode, the
stopwatch second hand will move automatically
to the city code that is currently selected as the
World Time city code. At the same time, the
World Time dial hands will move to the current
hour in that 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.
World Time dial
(24-hour format)
Stopwatch second hand
To view the time in another city
While in the World Time Mode, use D to select a city code.
The World Time dial hands will move to indicate the current time in the
selected city code.
• The watch will beep if the city you select is your current Home City.
• For full information on city codes, see the “City Code Table”.
To check whether the World Time is Standard Time or Daylight
Saving Time
While in the World Time Mode, press A.
Standard Time is indicated if the second hand
moves to 6 o’clock, while Daylight Saving Time is
indicated if it moves to 12 o’clock.
• The second hand will return to normal
timekeeping after about five seconds.
Second hand
To toggle a city code time between Standard Time and Daylight
Saving Time
In the World Time Mode, hold down A for about five seconds.
• The above operation toggles the city code to Daylight Saving Time. This is
indicated by the second hand moving to 12 o’clock for about five seconds.
After that it will return to normal timekeeping.
• The above operation toggles the city code to Standard Time. This indicated
by the second hand moving to 6 o’clock for about five seconds. After that it
will return to normal timekeeping.
• Note that you cannot switch between Standard Time and Daylight Saving
Time while GMT is selected as the city code.
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.
• The display range of the stopwatch is 23 hours,
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.
• All of the operations in this section are
performed in the Stopwatch Mode.
Stopwatch
second hand
Stopwatch 1/20 second hand
* This hand rotates and
indicates the second count
during the first 60 seconds.
• Stopwatch hour hand
(24-hour format)
• Stopwatch minute hand
To measure elapsed time
1. In the Stopwatch Mode, press B to start the stopwatch.
2. Press B to stop the stopwatch.
• You can resume the measurement operation by pressing B again.
• The 1/20 second hand rotates during the first 60 seconds only, and then
stops. When elapsed timing is stopped (by pressing B), this hand jumps
to the 1/20 second indication (which is kept internally).
3. Check the elapsed time.
• Press A to reset the stopwatch to all zeros. The stopwatch will reset to all
zeros even if you press A while elapsed time measurement is in progress.
Alarm
When the alarm is turned on, the alarm sounds
when the alarm time is reached.
• When you enter the Alarm Mode, the
stopwatch second hand will move to either ON
(alarm on) or OFF (alarm off), and the alarm
time dial hands will 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 five
seconds to display the setting mode.
• The stopwatch second hand will move to
ON (alarm on).
Alarm time minute hand
Alarm time hour hand
(24-hour format)
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.
4. Press B to return to the Timekeeping Mode.
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 C 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, hold down A and
C for five seconds.
This enters the Home Position Adjustment
Mode, which you can use to check and adjust
the home position of the timekeeping second
hand and the stopwatch second hand.
• The timekeeping second hand is in the
proper home position if it moves to 12
o’clock. If it doesn’t, press D to move it to
12 o’clock.
• 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.
Stopwatch second hand
Timekeeping second hand