Mode Reference Guide - Casio 5141 Operation Manual

To perform manual receive
1. In the Timekeeping Mode (page E-20), keep
x Second Hand (short end) goes through the following sequence.
Moves to YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to
READY (R).
x Second Hand (short end) indicates the operations the watch is currently performing.
2. The
When the x x Second Hand
(Second hand
short end) (short end) is pointed here:
READY (R)
WORK (W)
YES (Y)
NO (N)
If signal reception is unstable, the x x Second Hand (short end) may move
between WORK (W) and READY (R).
When the receive operation is successful, the watch adjusts the time
setting accordingly, and then resumes normal timekeeping. It does not
adjust the setting if the operation failed.
Note
To interrupt a receive operation and return to the Timekeeping Mode,
press any button.
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Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting.
Even if a receive operation is successful, certain conditions can cause the time setting to be off by up
to one second.
The watch is designed to update the date and day of the week automatically for the period January
1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed
starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in "Specifi cations" (page E-52).
The receive operation is disabled under any of the following conditions.
− While power is at Level 2 or lower (page E-8)
− While the watch is in the power recovery mode (page E-9)
− While the watch is in the function sleep state (power saving, page E-10)
− While a countdown time operation is in progress (page E-37)
A receive operation is cancelled if an alarm sounds while it is being performed.
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Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch's current mode
Check the position of the b Lower Dial Hand as shown under "To select a
mode" (page E-20).
To return to the Timekeeping Mode from any other mode
Except while the watch is performing auto hand home position correction, push
in and hold the crown for at least two seconds.
To select a mode
Each push of the crown cycles through the modes in the sequence shown
below. The b Lower Dial Hand indicates the currently selected mode.
When pushing the crown in, make sure you push it in as far as it will go.
Operations may not be performed correctly if you push the crown in
incompletely.
When you go from the Alarm Mode to the Timekeeping Mode, the b Lower
Dial Hand fi rst indicates TIME 1 or TIME 2 (page E-22), and then moves to
the current day of the week.
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Timekeeping
In the Timekeeping Mode, you can confi gure two different time zones (TIME 1 and TIME 2) as Home
Cities, so you can switch between them to view their current dates and times. To enter the Timekeeping
Mode from another mode, push in and hold the crown for at least two seconds.
The watch confi guration used in this manual assumes that TIME 1 is confi gured as your main Home
City.
For details about using TIME 2, see "About TIME 2" (page E-23).
Hand Functions
z z Hour Hand
x x Second Hand
c c Minute Hand
v v Upper Dial Hand: Indicates the current hour in the Home City time in
b b Lower Dial Hand: For about one second after entering the Timekeeping
n n Day
To check the city code of the currently selected TIME
Pressing A in the Timekeeping Mode will cause the x Second Hand to move to the city code of the
currently selected TIME and stay there for about one second.
For details about city codes, see the "City Code Table" at the back of this manual.
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Operation Guide 5141 (OC)
B depressed (for about two seconds) as the
It means this:
Watch is setting up for reception.
Reception is in progress.
Reception was completed successfully.
Reception failed for some reason.
24-hour format.
Mode, shows TIME 1 (1-TIME) or TIME 2 (TIME-2). After
that, shows the current day of the week for the selected
TIME.
To check the result of the latest receive operation
In the Timekeeping Mode, press B.
The x Second Hand (short end) will move to YES (Y) for about one second
if the latest receive operation was successful, or NO (N) if it was not. After
that, regular timekeeping will resume.
You can return to the Timekeeping Mode manually by pressing B while the
x Second Hand (short end) is pointing to YES (Y) or NO (N).
Note
The x Second Hand (short end) will indicate NO (N) if you have adjusted the
time or date setting manually since the latest receive operation.

Mode Reference Guide

Your watch has four "modes". The mode you should select depends on what you want to do.
To do this:
View the current time in your Home City and in one of 29 other cities
around the globe
View the current date in the Home City
Confi gure Home City and daylight saving time (DST) settings
Perform a time calibration receive operation
Confi gure time and date settings manually
Switch between the two Home Cities
Use the stopwatch to measure elapsed time
Use the countdown timer
Set an alarm time
Push the crown in.
Timekeeping Mode
The hand indicates the day of the
week (Su, Mo, Tu, We, Th, Fr, Sa).
Alarm Mode
Hand points to AL.
About TIME 2
This watch supports two Home Cities: a main Home City (TIME 1) and a second Home City (TIME 2).
TIME 2 also can be confi gured with one of 29 city codes (time zones) around the world. While TIME 2 is
selected in the Timekeeping Mode, the alarm, and time calibration signal auto receive functions operate in
accordance with the TIME 2 time.
If the city code you select for TIME 2 supports time calibration signal reception (page E-11), signal
reception will be performed accordingly when TIME 2 is selected.
When the watch corrects the current time setting in accordance with a time calibration signal, it will
correct both the TIME 1 and TIME 2 settings.
Support for two Home Cities allows you to do the following.
Example: Taking a trip from Tokyo to New York (a), then from New York to London (b), and then
back to Tokyo (c)
a) While en route from Tokyo to New York
a-1. Switch the Timekeeping Mode from TIME 1 (Tokyo) to TIME 2.
See "To switch from TIME 1 to TIME 2" (page E-25).
a-2. Select the New York city code for Time 2.
See "To confi gure Home City settings" (page E-26).
b) En route from New York to London
Change the TIME 2 city code to London.
See "To confi gure Home City settings" (page E-26).
c) En route back to Tokyo from London
Switch the Timekeeping Mode from TIME 2 (London) back to TIME 1 (Tokyo).
See "To switch from TIME 1 to TIME 2" (page E-25).
E-17
Enter this mode: See:
Timekeeping Mode E-22
Stopwatch Mode E-35
Countdown Timer Mode E-37
Alarm Mode E-40
E-19
Stopwatch Mode
Hand points to ST.
Countdown Timer Mode
Hand points to TR.
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