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Operation Guide 2931
6
Troubleshooting
The watch cannot receive the time calibration signal.
• Is the signal being transmitted?
Though the time data of the Japanese calibration signal (Call
Sign: JJY) is maintained by the Japan Standard Time Group of
the National Institute of Information and Communications
Technology (NICT), it may sometimes be interrupted for periodic
maintenance work, or because of lightning or other problems.
• Are you within the reception range of a transmitter?
See “Reception Ranges” for information about areas where the
watch can receive the signal.
• Is there something in the immediate area that may be interfering
with reception?
Even if you are within the reception range of a transmitter, objects
between you and the transmitter or electrical noise can interfere
with reception. Avoid such areas (see “Location”) during signal
reception.
• Do you have the correct Home City code selected?
Remember that auto receive is not performed unless OSA
(Osaka), TYO (Japan), LAX (Los Angeles), DEN (Denver), CHI
(Chicago), or NYC (New York) is selected as the Home City. For
details, see “To configure Home City settings”.
• Is auto receive turned off?
Use the procedure under “To turn auto receive on and off” to turn
on auto receive.
• Is the watch in any mode other than the Timekeeping Mode or
World Time Mode during the auto receive times (midnight, 1:00
a.m., 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)?
Auto receive is performed only when the watch is in the
Timekeeping Mode or World Time Mode. It is not performed if the
watch is in any other mode.
Time calibration signal reception is successful, but the hourly
time signal and current time are slightly off.
• After the watch receives the time calibration signal, it performs an
internal decoding process before updating its time setting.
Because of this, the time setting may be slightly off (within one
second).
Time calibration signal reception is successful, but the current
time is one hour fast.
• Do you have summer time (DST) turned on? Use the procedure
under “To configure Home City settings” to change the summer
time setting to OFF or AUTO.
Time calibration signal reception is successful, but the current
time setting is wrong.
• Is the correct city code selected for your Home City? For details
about setting the correct Home City, see “To configure Home City
settings”.
I can’t turn auto receive on and off
• Remember that auto receive cannot be turned on and off unless
OSA (Osaka), TYO (Japan), LAX (Los Angeles), DEN (Denver),
CHI (Chicago), or NYC (New York) is selected as the Home City.
For details about setting the correct Home City, see “To configure
Home City settings”.
Auto Receive
Home City
Summer Time
On
Tokyo
Auto (according to signal data)
The information that should appear in the tide graph and the Moon
graph depends on your location. Be sure to configure the required
settings (Home City and area) about your location before trying to
use these graphs.
• Once you specify your current location, you do not need to
change it unless you move to another relatively faraway
location, or if you allow the watch’s rechargeable battery to
go dead (which clears the current settings).
• The following are the watch’s factory default settings: Home
City: Tokyo (GMT Differential: +9.0); Area: SHIBAURA.
❚
To configure location settings
1. In the Timekeeping Mode,
hold down the
AA
AA
A button
for about two seconds
until the city code and
GMT differential start to
flash. This is the setting
screen.
City Code
GMT Differential
(Back)
(Forward)
(Forward)
GMT Differentials
City
Code
City Name
PPG
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
–01
LON
PAR
BER
ATH
CAI
JRS
Pago Pago
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New York
Caracas
Rio de Janeiro
London
Paris
Berlin
Athens
Cairo
Jerusalem
–11
–10
–9
–8
–7
–6
–5
–4
–3
–1
+00
+1
+1
+2
+2
+2
JED
THR
DXB
KHI
DEL
DAC
RGN
BKK
HKG
OSA
TYO
ADL
SYD
NOU
WLG
TBU
Jeddah
Teheran
Dubai
Karachi
Delhi
Dakar
Yangon
Bangkok
Hong Kong
Osaka
Tokyo
Adelaide
Sydney
Noumea
Wellington
Nuku’Alofa
+3
+3.5
+4
+5
+5.5
+6
+6.5
+7
+8
+9
+9
+9.5
+10
+11
+12
+13
GMT
Differ-
ential
GMT
Differ-
ential
City
Code
City Name
• The contents of the above table are current as of December 2004.
• Time differentials in the above table are in accordance with
Universal Time Coordinated (UTC).
Using the Tide/Moon Graph
When is auto receive performed?
• Auto receive is performed in the middle of the night, when
reception conditions are best. Before going to bed at night, place
the watch near a window, with its 12 o’clock position facing in the
general direction of the transmitter.
How can I perform manual receive?
• Hold down the lower right D button for about two seconds. The
watch will beep to indicate that manual receive has started. Place
it near a window, with its 12 o’clock position facing in the general
direction of the transmitter.
How can I view the last reception date and time?
• In the Timekeeping Mode, press the lower right D button.
This will display the date and time that the time calibration signal
was last received successfully. To return to the Timekeeping
Mode, press the D button again.
• If you cannot receive the calibration signal or if the current time
setting is incorrect after signal reception, check the current setup
of the watch.
• The following are the watch’s factory default settings, which are
configured automatically whenever you have the battery of the
watch replaced.
2. Press the
CC
CC
C button so the
setting you want to
change is flashing on the
display.
• Each press of the C button
toggles between the City
Code (GMT differential) and
area screen.
City Code
(GMT Differential)
Area
3.
Select the city code (GMT differential) and area you want to set.
To select the city code (GMT differential)
Use the
BB
BB
B and
DD
DD
D buttons
to scroll through the
available city codes.
• Holding down either button
scrolls the setting at high
speed.
• Changing the city code
automatically changes the
time in accordance with the
applicable GMT differential.
To select the area
Press the
DD
DD
D button to
scroll thought available
areas.
• Holding down the D button
scrolls the setting at high
speed.
• Refer to the “GMT Differentials” when setting the Home City
and the “Area List” when setting the area.
4. After the settings are the way you want, press the
AA
AA
A
button three times to exit the setting screen.
• The display also will exit the setting screen automatically if
you do not perform any operation for about two or three
minutes.
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