Operation Guide 2752
•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 |
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| office | other sources |
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| equipment, | of electrical |
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| or a mobile | noise |
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| phone |
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•Signal reception is normally better at night than during the day.
•Time calibration signal reception takes from two to six minutes, but in some cases it can take as long as 12 minutes. Take care that you do not perform any button operations or move the watch during this time.
•When within range of the applicable transmitter, this watch can receive either the U.S. (Fort Collins, Colorado) or Japanese (Fukushima or Fukuoka/Saga) time calibration signal. The signal the watch will attempt to pick up depends on its current Home City code setting as shown below.
Home City Code | Transmitter | Frequency | |
LAX, DEN, CHI, NYC | Fort Collins, Colorado | 60kHz | |
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TYO* | Fukushima | 40kHz | |
Fukuoka/Saga | 60kHz | ||
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*With TYO, you can specify either 40kHz or 60kHz.
600 miles | 2,000 miles | 500 | 500 |
kilometers |
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Fukuoka/Saga |
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1,000 | Fukushima |
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kilometers | 1,000 |
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Fort Collins | kilometers |
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•Under good reception conditions, signal reception is possible within a radius of about 2,000 miles (3,000 kilometers) from the Fort Collins transmitter.
•At distances further than about 600 miles (1,000 kilometers) from the Fort Collins transmitter, signal reception may not be possible during certain times of year or times of day. Radio interferance may also cause problems with reception.
•At distances further than about 500 kilometers from the Fukushima and Fukuoka/ Saga transmitter, signal reception may not be possible during certain times of year or times of day. Radio interferance may also cause problems with reception.
•See the information under “Signal Reception Troubleshooting” if you experience problems with time calibration signal reception.
About Auto Receive
When auto receive is turned on, the watch automatically starts to receive the time calibration signal when the time in the Timekeeping Mode reaches 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. each day (calibration times). The watch will also perform an additional auto receive at 5:00 a.m. if none of the regularly scheduled auto receive operations are successful.
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). |
• Auto receipt 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 easily receive the signal. |
• When auto receive is turned on, the watch receives the calibration signal for two to |
six minutes everyday when the time in the Timekeeping Mode reaches each of the |
five calibration times. Do not perform any button operation within six minutes before |
or after any of the five calibration times. Doing so can interfere with correct |
calibration. |
• Remember that reception of the calibration signal depends on the time kept in the |
digital display. Reception will be performed whenever the display shows one of the |
five calibration times, regardless of whether or not the displayed time is actually the |
correct time. |
• When two, three, four, or five receptions are successful, the watch uses the data of |
To perform manual receive
1. Place the watch on a stable surface so its top (12 o’clock side) is facing towards a window.
2. In the Timekeeping Mode, hold down Dfor about two seconds until the watch beeps.
3. After you release D, the display will alternate between
the current time and date, and the letters RC!. This indicates that signal reception is in progress.
RC!
•Time calibration signal reception normally takes from two to six minutes. In Japan, however, reception can take up to 12 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 a reception and return to the Timekeeping Mode, press D.
•If the 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 configure the auto receive setting for the U.S.
Note
•The following procedure applies when you have LAX, DEN, CHI, or NYC selected as your Home City. If you are using the watch in Japan, see “To configure auto receive settings for Japan”.
On/Off status 1. In the Timekeeping Mode, press Dto display the last
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| • The watch will automatically return to the |
| l | l l | Timekeeping Mode if you do not perform any button | ||
l | operation for two or three minutes after displaying the | ||||
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| l | last signal screen. |
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l | l l | l | 2. Hold down A until the current auto receive setting | ||
flashes on the display. This is the setting screen.
• If TYO is selected as the Home City, you can specify a transmitter selection mode.
3. Use Band Dto turn auto receive on (ON) or off (OFF).
4. Press Ato exit the setting screen.
•To return to the Timekeeping Mode from the last signal screen, press D.
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 LAX, DEN, CHI, |
| following city codes: LAX, DEN, | NYC, or TYO as your Home |
| CHI, NYC, or TYO. | 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 signal |
the Level 4 | or World Time Mode, or you were | receive is performed. |
receiving | performing some button operation | • Check to make sure the |
indicator does | during the auto receive. | watch is in a location where it |
not appear on | • Even if reception is successful, the | can receive the signal. |
the display. | Level 4 receiving indicator disappears |
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| every day at 3 a.m. |
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| • Time data (hour, minutes, seconds) only |
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| was received during the last reception. |
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| The Level 4 receiving indicator appears |
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| only when time data and date data |
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| (year, month, day) are both received. |
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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. |
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•For further information, see “Important!” under “Time Calibration Signal Reception” and
World Time
the last reception for calibration. When only one reception is successful, the watch |
uses the data of the successful reception. |
About the Receiving Indicator
The receiving indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest.
Receiving indicator
Weak |
| Strong |
(Level 1) |
| (Level 4) |
City code
Mode indicator
Current time in the selected city code
The World Time Mode digitally displays the current time in 30 cities (29 time zones) around the world.
•Pressing A in the World Time Mode causes the applicable city code to appear on the digital display for about one second.
•If the current time shown for a city is wrong, check your Home City time settings and make the necessary changes.
•The watch will perform a signal reception even if it is in the World Time Mode when a calibration time is reached. If this happens, the World Time Mode time settings will be adjusted in accordance with the Timekeeping Mode’s Home City time.
•All of the operations in this section are performed in the World Time Mode, which you enter by pressing C.
•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 remains on the display in all modes following reception of the time calibration signal and calibration of the watch’s time setting. The Level 4 receiving indicator is not displayed if signal reception was unsuccessful or after manual adjustment of the current time setting.
•The Level 4 receiving indicator indicates that at least one of the five calibration signal receive operation was successful. Note, however, that the Level 4 receiving indicator is cleared from the display at 3:00 a.m. each day.
To view the time in another city
While in the World Time Mode, press D to scroll through the city codes (time zones) to the east or Bto scroll to the west.
•For full information on city codes, see the “City Code Table”.
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