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Operation Guide 5141 (OC)

E-7

Charging the Watch

The face of the watch is a solar cell that generates power from light. The generated power charges a

built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed

to light.

Charging Guide

Whenever you are not

wearing the watch, be sure

to leave it in a location where

it is exposed to light.

Best charging

performance is achieved

by exposing the watch to

light that is as strong as

possible.

When wearing the watch, makes

sure that its face is not blocked

from light by the sleeve of your

clothing.

The watch may enter a sleep

state (page E-10) if its face is

blocked by your sleeve even

only partially.

Warning!

Leaving the watch in bright light for charging can cause it to become quite hot. Take care when

handling the watch to avoid burn injury. The watch can become particularly hot when exposed to

the following conditions for long periods.

On the dashboard of a car parked in direct sunlight

Too close to an incandescent lamp x

Under direct sunlight x

E-6

E-31 Conﬁ guring Current Time and Date Settings Manually

E-31 To change the current time setting manually

E-33 To change the current date setting manually

E-35 Using the Stopwatch

E-35 To perform elapsed time measurement

E-37 Using the Countdown Timer

E-38 To specify the countdown start time

E-38 To perform a countdown timer operation

E-39 To stop the alarm

E-40 Using the Alarm

E-40 To change the alarm time setting

E-41 To turn the alarm on or off

E-41 To stop the alarm

E-42 Auto Correction of Hand Home Positions

E-43 Adjusting Home Positions Manually

E-44 To adjust home positions manually

E-46 Troubleshooting

E-52 Speciﬁ cations

E-5

Contents

E-2 About This Manual

E-3 Things to check before using the watch

E-7 Charging the Watch

E-10 To recover from the sleep state

E-11 Radio Controlled Atomic Timekeeping

E-14 To get ready for a receive operation

E-16 To perform manual receive

E-17 To check the result of the latest receive operation

E-19 Mode Reference Guide

E-20 To determine the watch’s current mode

E-20 To return to the Timekeeping Mode from any other mode

E-20 To select a mode

E-22 Timekeeping

E-22 To check the city code of the currently selected TIME

E-24 To check whether TIME 1 or TIME 2 is currently displayed

E-25 To switch from TIME 1 to TIME 2

E-26 Conﬁ guring Home City Settings

E-26 To conﬁ gure Home City settings

E-29 To toggle the Home City time between standard time and daylight saving time

E-30 To manually override a time calibration standard time/daylight saving time setting

E-4

3. Set the current time.

x To set the time using a time calibration signal

See “To get ready for a receive operation” (page E-14).

x To set the time manually

See “Conﬁ guring Current Time and Date Settings Manually” (page E-31).

The watch is now ready for use.

For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic

Timekeeping” (page E-11).

E-3

Things to check before using the watch

1. Push in and hold the crown for at least two seconds to enter the Timekeeping Mode, and then

observe the movement of the

Second Hand.

Is the

Second Hand moving smoothly at one-second intervals?

Is the

Second Hand moving at two-second intervals

or is it stopped completely?

Go to step 2.

The watch is charged sufﬁ ciently. For

details about charging, see “Charging the

Watch” (page E-7).

Power is low. Charge the watch by placing it in a

location where it is exposed to light. For details, see

“Charging the Watch” (page E-7).

YES

2. Check the Home City and the daylight saving time (DST) settings.

Use the procedure under “To conﬁ gure Home City settings” (page E-26) to conﬁ gure your Home City and

daylight saving time settings.

Important!

Proper time calibration signal reception depends on correct Home City, time, and date settings in the

Timekeeping Mode. Make sure you conﬁ gure these settings correctly.

E-2

About This Manual

Operations are performed using the watch’s crown, and the two buttons

indicated by the letters A and B in this manual.

Hand Functions

z Hour Hand

x Second Hand

c Minute Hand

v Upper Dial Hand: Indicates a time, in 24-hour format, depending on the

current mode.

b Lower Dial Hand: Indicates the current mode.

n Day

This User’s Guide uses numbers shown above to identify watch hands and

indicators.

About the crown

Some of the operations of this watch are performed by pulling out the crown,

while other operations are performed by pushing the crown in.

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 pulling out the crown, avoid using undue force, which creates the risk

of personal injury to your ﬁ ngers and ﬁ ngernails, and of watch malfunction.



@>B

Pull crown out.

Push crown in.

E-1

ENGLISH

Congratulations upon your selection of this CASIO watch.

Note that the product illustrations in this manual are intended for reference only, and so the actual

product may appear somewhat different than depicted by an illustration.

This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of

this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland,

Canada.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by

you or any third party arising through the use of this product or its malfunction.

MA1009-EA

Summary of content (7 pages)

PAGE 1
MA1009-EA Operation Guide 5141 (OC) ENGLISH Congratulations upon your selection of this CASIO watch. x Note that the product illustrations in this manual are intended for reference only, and so the actual product may appear somewhat different than depicted by an illustration. This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada.
PAGE 2
Operation Guide 5141 (OC) Important! x Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps to ensure that power does not run down. x Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to bright light whenever possible.
PAGE 3
Operation Guide 5141 (OC) To perform manual receive 1. In the Timekeeping Mode (page E-20), keep B depressed (for about two seconds) as the x Second Hand (short end) goes through the following sequence. x Moves to YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to READY (R). 2. The x Second Hand (short end) indicates the operations the watch is currently performing.
PAGE 4
Operation Guide 5141 (OC) To check whether TIME 1 or TIME 2 is currently displayed In the Timekeeping Mode, push the crown in four times. TIME 1 TIME 2 x This will re-enter the Timekeeping Mode (page E-21). x The b Lower Dial Hand will indicate either TIME 1 (1-TIME) or TIME 2 (TIME-2) for about one second. After that, the b Lower Dial Hand will move to the current day of the week.
PAGE 5
Operation Guide 5141 (OC) 2. Change the Home City and daylight saving time (DST) settings, if you want. x For details about these settings, see steps 2 and 3 under “To conﬁgure Home City settings” (page E-26). B> @+ 3. Hold down B for about two seconds. This will enter the time setting mode. x The watch will beep and the x Second Hand will move to the 12 o’clock. x In the following steps, each press of B cycles between settings as shown below.
PAGE 6
Operation Guide 5141 (OC) Using the Alarm When the alarm is turned on, an alarm will sound for about 10 seconds each day when the time in the Timekeeping Mode (TIME 1 or TIME 2) (page E-22) reaches the preset alarm time. This is true even if the watch is not in the Timekeeping Mode. @+ > Hand Functions z Hour Hand: Indicates the currently set alarm time hour. x Second Hand: Short end indicates the current alarm ON/OFF setting. c Minute Hand: Indicates the currently set alarm time minute.
PAGE 7
Operation Guide 5141 (OC) ■ The hands and/or day indications are off. This could indicate that the watch has been exposed to magnetism or strong impact, which has caused problems with proper hand and day alignment. Adjust the watch’s hand and day home position alignment (page E-42). TIME 1 and TIME 2 ■ The TIME 1 time is correct, but the TIME 2 time is off. The STD (standard time)/DST (daylight saving time) setting of TIME 2 may be wrong.