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World Time Mode; Troubleshooting - Casio 3311 Operation Manual

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Troubleshooting

The watch cannot receive the time calibration signal.
• Is the signal being transmitted?
Though the Japanese calibration signal (Call Sign: JJY) is
continually transmitted by the National Institute of Information
and Communications Technology (NICT) in theory, it may
sometimes be interrupted for periodic maintenance work, or
because of lightening or other problems.
• Are you within the reception range of a transmitter?
See "Reception Range" 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 during signal
reception. See "Location" for more information.
• Do you have the correct Home City code selected?
Remember that auto receive is not performed unless TYO
(Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX
(Los Angeles) is selected as the Home City. Select the correct
Home City code using the procedure under "Selecting Your
Home City".
• Is auto receive turned off (OF)?
Use the procedure under "Configuring Auto Receive Settings" 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.

World Time Mode

World time lets you display the current time in any one of 30 cities
(29 time zones) around the world.
• When you enter the World Time Mode, the screen for the city that
was displayed when you last exited the mode appears first.
• The seconds count in the World Time Mode is linked with the
Timekeeping Mode seconds count.
• The same 12-hour/24-hour format you select for the Timekeeping
Mode time is also applied in the World Time Mode.
Timekeeping Mode
World Time Mode
About two
(Twice)
seconds
Example: Day of the Week
Important!
If the World Time Mode time is incorrect, correct the setting of the
current time in the Timekeeping Mode.
• For information about selecting a Home City, see "Selecting Your
Home City".
Operation Guide 3311/3356
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 (ON)?
Use the procedure under "Configuring Summer Time (Daylight
Saving Time) Settings" to turn off summer time.
Time calibration signal reception is successful, but the current
time setting is wrong.
• Is the correct city code selected for your Home City?
If you are in Japan, you should have TYO selected for your Home
City. For other areas, select the correct Home City code using the
procedure under "Selecting Your Home City".
❚ To search for a city code
In the World Time Mode, press the D
D
D button.
D
D
• This scrolls westward through the available city codes. A short
while after a city code appears, the display will change to show
the current time in that city.
• Holding down the D button scrolls at high speed.
City Code
(Changes Display)
(Scrolls Forward)
Current Time in Selected City
• Pressing the A button in the World Time Mode displays the city
code of the currently selected city for about two seconds.
Auto receive is turned on (ON), but the receive icon " " is not
on the display.
• The receive icon appears when a signal is received successfully
and the time is updated. It is not displayed if there is no
successful signal reception throughout the day. Also note that the
icon disappears from the display each day at 3:00 a.m.
Make sure that you are using the watch in an area that is within
the reception range of a transmitter, and make sure that the watch
is in the Timekeeping Mode or World Time Mode when it is time
for auto signal reception.
The current auto receive on (ON)/off (OF) setting does not
appear on the setting screen.
• The auto receive on (ON)/off (OF) setting is not displayed unless
TYO (Japan), NYC (New York), CHI (Chicago), DEN (Denver), or
LAX (Los Angeles) is selected as the Home City.
Use the procedure under "Selecting Your Home City" to select
your correct Home City.
The AT, JP40, and JP60 options do not appear for the
transmitter selection mode setting.
• The AT, JP40, and JP60 transmitter selection mode options are
available only when TYO (Tokyo) is selected as the Home City
code.
Use the procedure under "Selecting Your Home City" to select
your correct Home City.
Using Summer Time (DST)
Summer time, or Daylight Saving Time (DST) as is it is known in
some countries, calls for setting clocks ahead one hour during the
summer season. Note that the use of summer time depends on
the country and even the local area.
❚ To turn summer time on or off
1.
In the World Time Mode,
DST Indicator
use the D button to
(Changes Setting)
display the screen for the
city code whose summer
time setting you want to
change.
2.
Hold down the A button
(Scrolls City Codes)
for about two seconds.
• This toggles summer time on
and off.
• The "DST" indicator appears
on the display and
timekeeping is advanced by
one hour when summer time
is turned on.
• You can turn summer time on
or off independently for each
World Time Mode city. Note,
however, that you cannot turn
on summer time for the "GMT"
city code.
What time 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. See "To view the last reception
date and time" for more information.
World Time City Code List
City
GMT
City
GMT
City Name
City Name
Code
Differential
Code
Differential
Jerusalem
– – –
–11
JRS
+2
Honolulu
Jeddah
HNL
–10
JED
+3
Anchorage
Teheran
ANC
–9
THR
+3.5
Los Angeles
Dubai
LAX
–8
DXB
+4
Denver
Kabul
DEN
–7
KBL
+4.5
Chicago
Karachi
CHI
–6
KHI
+5
NYC
New York
DEL
Delhi
–5
+5.5
CCS
Caracas
DAC
Dakar
–4
+6
RIO
Rio de Janeiro
RGN
Yangon
–3
+6.5
– – –
BKK
Bangkok
–2
+7
– – –
–1
HKG
Hong Kong
+8
GMT
+0
Greenwich Mean Time
SEL
+9
Seoul
LON
+0
London
TYO
+9
Tokyo
PAR
+1
Paris
ADL
+9.5
Adelaide
Berlin
BER
+1
SYD
+10
Sydney
Athens
ATH
+2
NOU
+11
Noumea
Cairo
CAI
+2
WLG
+12
Wellington
• The contents of the above table are current as of December 2003.
• Time differentials in the above table are in accordance with
Universal Time Coordinated (UTC).
6

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