Time Recorder; Signal Receive Troubleshooting; World Time; About Auto Receive - Casio 2866 Operation Manual

Operation Guide 2866 2867
• This watch is designed to receive the time calibration signal transmitted from Rugby,
England and the signal from Mainflingen, Germany. Signal reception is possible
within the area represented by a circle with a radius of about 1,500 kilometers.
• At distances further than about 500 kilometers from a 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 Receive 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 operation at 5:00 a.m. if none of the regularly
scheduled auto receive operations are successful.
Note
• Auto receive is on whenever the transmitter mode setting is anything other than
OFF . See "Transmitters" for more information.
• The auto receive operation 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
five minutes everyday when the time in the Timekeeping Mode reaches each of the
calibration times. Do not perform any button operation within five 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 time kept in 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, 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.
(Level 1) Weak
Receiving indicator
• 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 receive operations.
• 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 is displayed only when the watch is able to
successfully receive both time and date data. It does not appear when only time data
is received.
• The Level 4 receiving indicator indicates that at least one of the calibration signal
receive operations was successful. Note, however, that the Level 4 receiving
indicator is cleared from the display at 3:00 a.m. each day.

To perform manual receive

1. Place the watch on a stable surface so its top (12
o'clock side) is facing towards a window.
• Note that signal reception is poor when the 12 o'clock
side of the watch is not facing towards a window.
2. In the Timekeeping Mode (Current Time screen), hold
down D for about two seconds until the watch beeps.
3. Release D and the message
that signal reception has started.
• Time calibration signal reception takes from two to five
Receiving indicator
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 receive operation and return to the Timekeeping Mode, press D.
• If the receive operation is unsuccessful, the message
for about one or two minutes. After that, the watch returns to the Timekeeping Mode.
• You can also change from the Last Signal or
timekeeping screen by pressing D.

Signal Receive Troubleshooting

Check the following points whenever you experience problems with calibration signal
reception.
Problem Probable Cause
• The watch is not in the Timekeeping Mode.
Cannot perform
• Your current Home City is not one of the
manual receive.
following city codes:
LON , PAR , or BER .
• The transmitter mode is incorrect.
• The transmitter mode is incorrect.
Auto receive is
• You changed the time setting manually.
turned on, but
• The watch was not in the Timekeeping
the Level 4
receiving or World Time Mode, or you performed
indicator does some button operation during the auto
not appear on receive operation.
the display.
Strong (Level 4)
RC! appears to indicate
ERR appears on the display
ERR screen to the normal
What you should do
• Enter the Timekeeping Mode
and try again.
• Select
LON , PAR , or BER
as your Home City.
• Select the transmitter mode
appropriate for your current
location.
• Select the transmitter mode
appropriate for your current
location.
• Perform manual signal receive
or wait until the next auto
signal receive operation is
performed.
Problem Probable Cause
• Even if receive is successful, the Level 4
Auto receive is
turned on, but receiving indicator disappears every day
the Level 4 at 3 am.
• Time data (hour, minutes, seconds) only
receiving
indicator does was received during the last receive
not appear on operation. The Level 4 receiving
the display. 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 Timekeeping Precautions".

World Time

The World Time shows the current time in 30 cities (29
City code
time zones) around the world.
• For full information on city codes, see the "City Code
Table".
• The current time for all city codes in the World Time
Mode is calculated in accordance with the Greenwich
Mean Time (GMT) differential for each city, based on the
your Home City time setting.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
Home city time
Current time in the
selected city code
To view the time in another city code
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.
• If the current time shown for a city is wrong, check your Timekeeping Mode time and
Home City 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 B and D to display the
city code (time zone) whose Standard Time/Daylight
DST indicator
Saving Time setting you want to change.
2. Hold down A to toggle Daylight Saving Time (DST
indicator displayed) and Standard Time (DST indicator
not displayed).
• The DST indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
• Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
• Daylight Saving Time (DST) advances the time setting by one hour from Standard
Time. Remember that the not all countries or even local areas use Daylight Saving
Time.
• The watch will perform a signal receive operation 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 Home City time.

Time Recorder

The Time Recorder lets you store up to 30 records of the current time (month, day,
hour, minutes, seconds, and DST on/off setting) with the touch of a button. One way
you can use the Time Recorder is to record the start time and the end time of a
particular event.
To record a Time Recorder time
1. Enter the Timekeeping Mode.
2. Hold down B for about one second to record the Home City time (month, day,
hour, minutes, seconds, and DST on/off setting).
• The recorded time flashes for about two seconds, and then it is assigned a record
number. After that, the Timekeeping Mode screen appears.
• Records are assigned numbers sequentially from
• Storing a new time record when there are already 30 records stored in memory
automatically deletes record #01 , shifts the remaining records upwards by 1, and
stores the new record as #30 .
To recall Time Recorder times
1. Enter the Time Recorder Mode.
Time record number • If you recorded a new Time Recorder time since you
last entered the Time Recorder Mode, the newest
record appears first. If you have not recorded a new
time, the record you were viewing when you last
exited the Time Recorder Mode appears first.
2. Use B (+) and D (–) to scroll through times stored in
memory.
Recorded date
To delete all Time Recorder times
(Month – Day)
1. Enter the Time Recorder Mode.
Recorded time
2. Hold down A for about two seconds to delete all Time
(Hour : Minutes Seconds)
Recorder times.
• The recorded date and recorded time are replaced by
dashies (x) when threre are no Time Recorder times
currently in memory.
What you should do
• Perform manual signal receive
or wait until the next auto
signal receive operation 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.
#01 through #30 .
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