G-Shock GW-1500A-1AV - Manual (Page 2)

Operation Guide 3366
2
• Proper signal reception can be difficult or even impossible under the conditions
listed below.
• Signal reception is normally better at night than during the day.
• Time calibration signal reception takes from two to six minutes. Take care that you
do not perform any button operations or move the watch during this time.
Inside or
among
buildings Inside a
vehicle Near
household
appliances,
office
equipment,
or a mobile
phone Near a
construction
site, airport, or
other sources
of electrical
noise Near high-
tension
power lines Among or
behind
mountains
• This watch receives the time calibration signal
transmitted in the U.S. (Fort Collins, Colorado).
• 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 interference may also cause
problems with reception.
• See the information under “Signal Reception
Troubleshooting” if you experience problems with time
calibration signal reception.
2,000 miles
Fort Collins
600 miles
Reception Range
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., 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 turned on whenever LAX , DEN , CHI , or NYC is selected as the
Home City code. You can also turn auto receive on and off manually. See “To turn
auto receive on and off” for more information.
• 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
calibration times. Do not perform any button operation within six minutes before or
after any one of the calibration times. Doing so can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current time
shown on the digital display. The receive operation will be performed whenever the
display shows any one of the calibration times, regardless of whether or not the
displayed time is actually the correct time.
• When two, three, or four receptions are successful, the watch uses the data of 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.
• 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.
Receiving indicator
Weak Strong
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. While any screen other than the last signal screen is on
the display in the Timekeeping Mode, hold down D for
about two seconds until the watch beeps.
3. Release D and the receiving indicator will appear on
the display to indicate that signal reception has started.
• Time calibration signal reception takes from two to six
minutes. Take care that you do not perform any button
operations or move the watch during this time.
• After signal reception is complete, the watch beeps and the display of the watch
changes to the last signal screen.
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press D .
• If the receive operation is unsuccessful, ERR appears on the display for about one
or two minutes. After that, the watch returns to the Timekeeping Mode.
Receiving indicator
• You can also change from the last signal or ERR screen to the normal timekeeping
screen by pressing D .
l l l l
ll
ll ll
ll
l
To turn auto receive on and off
1. In the Timekeeping Mode, press D to display the last
signal screen.
2. Hold down A until the current auto receive setting ( ON
or OFF ) flashes on the display. This is the setting
screen.
• If holding down A does not display the setting
screen, check the current Home City code setting.
Press
D to return to the Timekeeping Mode screen
and then refer to “To set your Home City” for
information about city codes that support signal
reception.
3. Press D to toggle auto receive on ( ON ) and off ( OFF ).
4. Press A to exit the setting screen and return to the last signal screen.
• If you want to the return to the Timekeeping Mode screen, press D .
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem
Cannot perform
manual receive.
Probable Cause
• The watch is not in the Timekeeping
Mode.
• Your current Home City is not one of the
following city codes:
LAX , DEN ,
CHI , or NYC .
• A button operation was performed or the
watch was moved while signal reception
was in progress.
What you should do
• Enter the Timekeeping Mode
and try again.
• Select LAX , DEN , CHI , or
NYC as your Home City.
• Do not perform any button
operations or move the watch
while signal reception is in
progress.
• Check to make sure the
watch is in a location where it
can receive the signal.
The watch does
not perform auto
receive.
The time setting
is incorrect
following signal
reception.
• The watch was not in the Timekeeping
Mode or World Time Mode when a
calibration time arrived.
• Auto receive is turned off.
• 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.
• Perform manual signal
receive or wait until the next
auto signal receive operation
is performed.
• Turn on auto receive.
• Change the DST setting to
Auto DST.
• Select the correct Home City
code.
• For further information, see “Important!” under “Time Calibration Signal Reception”
and “Radio-controlled Atomic Timekeeping Precautions”.
World Time
World Time digitally displays the current time in 30 cities
(29 time zones) around the world.
• 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.
• For full information on city codes, see the “City Code
Table”.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing
C .
TYO
City code
Current time in the
zone of the
selected city code
To view the time in another city
In the World Time Mode, press D to scroll eastwardly through city codes (time
zones).
• The city code is displayed for about two seconds, and then it is replaced with the
current time for that city code. Pressing
A while the time is displayed in the World
Time Mode causes the city code of the currently selected zone to appear.
• When the currently selected time zone is one that includes mostly ocean, a value
indicating the zone's Greenwich Mean Time differential appears in place of a city
code.
• If the current time shown for a city is wrong, check your Home City time settings and
make the necessary changes.
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to display the city
code (time zone) whose Standard Time/Daylight Saving
Time setting you want to change.
2. Hold down A to toggle between Daylight Saving Time
(DST indicator displayed) and Standard Time (DST
indicator not displayed).
• The DST indicator appears on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
• You cannot toggle between Daylight Saving Time and Standard Time if the displayed
city code is
GMT or the city code that is currently selected as the Home City in the
Timekeeping Mode. To change the DST setting of your Home City, use the
procedure under “To change the Daylight Saving Time (summer time) setting”.
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
DST indicator
Alarm
When the alarm is turned on, the alarm sounds when the
alarm time is reached. You can also turn on an Hourly
Time Signal, which will cause the watch to beep twice
every hour on the hour.
• When the alarm is turned on, the alarm screen
alternates between
qmOo (alarm on) and the current
alarm time (hour and minutes). When the alarm is off,
qmOw (alarm off) remains on the alarm screen.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing
C .
• Pressing D in the Alarm Mode toggles between the
alarm screen and Hourly Time Signal screen.
2 seconds
On/Off status
Alarm Screen
Hourly Time Signal Screen
▲
▲
Press D .