Casio 2752 Panduan Pengoperasian - Halaman 2
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Operation Guide 2752
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
Inside a
Near
among
vehicle
household
buildings
appliances,
office
equipment,
or a mobile
phone
• 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
LAX
,
DEN
,
CHI
,
NYC
Fort Collins, Colorado
*
TYO
With
, you can specify either 40kHz or 60kHz.
*
TYO
500
2,000 miles
600 miles
kilometers
Fukuoka/Saga
1,000
kilometers
Fort Collins
• 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
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
(Level 1)
• 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.
Near a
Near high-
Among or
construction
tension
behind
site, airport, or
power lines
mountains
other sources
of electrical
noise
Transmitter
Frequency
60kHz
Fukushima
40kHz
Fukuoka/Saga
60kHz
500
kilometers
Fukushima
1,000
kilometers
Strong
(Level 4)
To perform manual receive
1. Place the watch on a stable surface so its top (12
Receiving indicator
o'clock side) is facing towards a window.
2. In the Timekeeping Mode, hold down D for 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
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
one or two minutes. After that, the watch returns to the Timekeeping Mode.
• You can also change from the last signal or
screen by pressing D.
To configure the auto receive setting for the U.S.
Note
• The following procedure applies when you have
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 D to display the last
signal screen.
• The watch will automatically return to the
Timekeeping Mode if you do not perform any button
operation for two or three minutes after displaying the
last signal screen.
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 B and D to turn auto receive on (
ON
4. Press A to 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
• The watch is not in the Timekeeping
Cannot perform
manual receive.
Mode.
• Your current Home City is not one of the
following city codes:
LAX
CHI
,
NYC
, or
TYO.
• You changed the time setting manually.
Auto receive is
• The watch was not in the Timekeeping
turned on, but
the Level 4
or World Time Mode, or you were
receiving
performing some button operation
indicator does
during the auto receive.
• Even if reception is successful, the
not appear on
the display.
Level 4 receiving indicator disappears
every day at 3 a.m.
• Time data (hour, minutes, seconds) only
was received during the last reception.
The Level 4 receiving indicator appears
only when time data and date data
(year, month, day) are both received.
• If the time is one hour off, the DST
Time setting is
incorrect
setting may be incorrect.
• The Home City code setting is not
following signal
reception.
correct for the area where you are using
the watch.
• For further information, see "Important!" under "Time Calibration Signal Reception"
and "Radio-controlled Atomic Timekeeping Precautions".
World Time
The World Time Mode digitally displays the current time in
City code
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
Mode indicator
World Time Mode, which you enter by pressing C.
Current time in the
selected city code
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 B to scroll to the west.
• For full information on city codes, see the "City Code Table".
RC!
. This
ERR
appears on the display for about
ERR
screen to the normal timekeeping
LAX
,
DEN
,
CHI
, or
NYC
) or off (
OFF
).
What you should do
• Enter the Timekeeping Mode
and try again.
• Select
LAX
,
DEN
,
CHI
,
,
DEN
,
NYC
, or
TYO
as your Home
City.
• Perform manual receive or
wait until the next auto signal
receive is performed.
• Check to make sure the
watch is in a location where it
can receive the signal.
• Change the DST setting to
Auto DST.
• Select the correct Home City
code.
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