Casio 5142 User manual

CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome
Shibuya-ku, Tokyo 151-8543, Japan
5142 5
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Printed in Japan
Imprimé au Japon
Gedruckt in Japan
MA1107-000000A
Module No. 5142

CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome
Shibuya-ku, Tokyo 151-8543, Japan
5142 KHE
MODEL:...................................................................................................................................................
DATE OF PURCHASE:............................................................................................................................
CUSTOMER’S NAME:.............................................................................................................................
OFFICIAL DEALER STAMP:
WARRANTY CARD
5SERS'UIDE 7ARRANTY#ARD
+(%
7
Printed in Japan
MA1107-000000A
Module No. 5142

E-1
ENGLISH
Congratulations upon your selection of this CASIO watch.
To ensure that this watch provides you with the years of service for which it is
designed, be sure to carefully read and follow the instructions in this manual,
especially the information under “Operating Precautions” and “User Maintenance”.
Be sure to keep all user documentation handy for future reference.
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.

E-2
About This Manual
In this manual, operations are performed using the watch’s
crown, and the three buttons indicated by the letters A,
Band C.
Hands and Indicators
z Hour Hand
x Second Hand
c Minute Hand
v Mode Disk: Rotates to indicate the current mode and
other information.
b Chronograph Signal
n Day
This User’s Guide uses numbers shown above to identify
watch hands and indicators.
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E-3
Using the Crown
The crown of this watch has a button part and a ring part. You can use the crown’s
button and ring to perform a number of different crown operations.
Locking the Crown
To lock the crown, push down its ring part as far as it will go as you
rotate the ring away from you until it is relatively tight. While the
crown is locked correctly, the only crown operations possible are
pressing the crown button and unlocking the crown.
Important!
Push down on the ring as you slowly rotate it. You should be able to feel it screwing•
securely into place.
You should normally have the crown locked during normal daily use. Leaving the•
crown unlocked creates the risk of unintended operations or even damage due to
impact.

E-4
Note that rotating the ring without pushing it down as far as it will go will change the•
settings of the watch. When locking the crown, be sure to press down firmly on the
ring as you rotate it.
Unlocking the Crown
Rotate the ring part of the crown towards you until it loosens
completely.
Pressing the Crown Button
You can press the crown button while the crown is locked.
Crown ring
Press

E-5
Pulling the Crown Out
After unlocking the crown, grasp the ring and pull the crown out.
Rotating the Crown
With the crown pulled out, grasp the ring and rotate the crown
towards you to move the hands of the watch.
You can also perform high-speed hand movement using the
operations described below. Note that there are two levels of high-
speed movement (High-speed 2 is faster).
Use High-speed 2 when changing the minute hand setting in the•
Timekeeping Mode, Timer Mode, and Alarm Mode.

E-6
High-speed 1
With the crown pulled out, rotate it rapidly away from you two times.
High-speed 2
After starting the High-speed 1 operation, rotate the crown rapidly
away from you two more times.
High-speed Cancel
Rotate the crown towards you or press any button.
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
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E-7
Note
You can use high-speed hand movement when configuring time settings in the•
Timekeeping Mode, Alarm Mode, or Countdown Timer Mode, or when adjusting the
home positions of the hands.
Pushing the Crown In
Carefully press the button of the crown the push the crown back in.
Important!
To prevent unintentional operation, the button press operation of the crown•
becomes disabled automatically for about eight seconds after you push the crown
back in. It will become re-enabled after about eight seconds.

E-8
Note
If you do not perform any operation for more than three minutes after pulling out the•
crown, crown operations will become disabled automatically. If this happens, push
the crown back in and then pull it out again to re-enable crown operations.
Disabling Crown Button Mode Switching
You can use the following operation to disable crown button mode switching, so the
watch does not change modes when the crown button is pressed.
To disable crown button mode switching
While pressing and holding down the crown button for about two seconds, press A.
This will disable mode switching when the crown button is pressed.
While crown button mode switching is disabled, pressing the crown button will•
cause the xSecond Hand to move to the 3 o’clock position. The watch will not
change modes. The xSecond Hand will resume normal timekeeping when you
release the crown button.

E-9
To re-enable crown button mode switching
Hold down the crown as you press A.

E-10
Things to check before using the watch
1. Press and hold the crown button (without unlocking the crown) for at
least two seconds to enter the Timekeeping Mode, and then observe the
movement of the xSecond Hand.
Is the xSecond Hand moving smoothly at one-second intervals?
Is the xSecond Hand moving at
two-second intervals or is it stopped
completely?
Go to step 2.
The watch is charged sufficiently.
For details about charging, see
“Charging the Watch” (page E-16).
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-16).
NO
YES
YES
NEXT

E-11
2. Check the Home City and the daylight saving time (DST) settings.
Use the procedure under “To configure Home City settings” (page E-45) to configure
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 configure these settings
correctly.
3. Set the current time.
•To set the time using a time calibration signal
See “To get ready for a receive operation” (page E-30).
•To set the time manually
See “Configuring Current Time and Date Settings Manually” (page E-55).
The watch is now ready for use.
For details about the watch’s radio controlled timekeeping feature, see “Radio•
Controlled Atomic Timekeeping” (page E-24).

E-12
Contents
E-2 About This Manual
E-3 Using the Crown
E-8 To disable crown button mode switching
E-9 To re-enable crown button mode switching
E-10 Things to check before using the watch
E-16 Charging the Watch
E-23 To recover from the sleep state
E-24 Radio Controlled Atomic Timekeeping
E-30 To get ready for a receive operation
E-33 To perform manual receive
E-35 To check the result of the latest receive operation
E-37 Mode Reference Guide

E-13
E-40 To determine the watch’s current mode
E-40 To return to the Timekeeping Mode from any other mode
E-41 To select a mode
E-44 Timekeeping
E-45 Configuring Home City Settings
E-45 To configure Home City settings
E-51 To toggle the Home City time between standard time and daylight
saving time
E-53 To manually override a time calibration standard time/daylight saving
time setting
E-55 Configuring Current Time and Date Settings Manually
E-55 To change the current time setting manually
E-59 To change the current date setting manually
E-63 Using the Stopwatch (Stopwatch Split Mode)
E-65 To perform elapsed time measurement

E-14
E-65 To perform an elapsed time operation
E-65 To pause at a split time
E-69 Using the Stopwatch (Stopwatch lap mode)
E-70 To enter and exit the Stopwatch Lap Mode
E-71 To perform an elapsed time operation
E-71 To perform lap time measurement
E-72 To recall lap data
E-73 Using the Countdown Timer
E-74 To specify the countdown start time
E-76 To perform a countdown timer operation
E-77 To stop the alarm
E-78 Using the Alarm
E-79 To change the alarm time setting
E-82 To check the AM/PM setting of the alarm
E-82 To turn the alarm on or off

E-15
E-82 To stop the alarm
E-83 Checking the Current Time in a Different Time Zone
E-84 To view the time in another time zone
E-86 To check whether a time zone is AM or PM
E-86 To specify standard time or daylight saving time (DST) for a city
E-88 Adjusting Home Positions
E-89 To adjust home positions
E-93 Troubleshooting
E-105 Specifications
E-107 Operating Precautions
E-116 User Maintenance

E-16
Charging the Watch
The face of the watch is a solar panel 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-22) if
its face is blocked by your
sleeve even only partially.

E-17
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•
Under direct sunlight•
Important!
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.
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.

E-18
Power Levels
You can get an idea of the watch’s power level by
observing the movement of the xSecond Hand in the
Timekeeping Mode.
If the•xSecond Hand is moving normally at one-second
intervals, power is at Level 1.
If the•xSecond Hand is moving at two-second intervals,
power is at Level 2, which is quite low. Expose the watch
to light as soon as possible so it can charge.
Moves at two-second
intervals.
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