Casio 5054 User Manual
MO0901-EB
Module No. 5054
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
• Be sure to keep all user documentation handy for future reference.
Keep the watch exposed to bright light
Bright Light
l
l
l
l
l
l
l
Solar cell
The electricity generated by the solar cell of the watch is
l
stored by a built-in battery. Leaving or using the watch
l
l
l
where it is not exposed to light causes the battery to run
down. Make sure the watch is exposed to light as much as
possible.
• When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is even only partially covered.
E-1
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light. Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
E-2
Bright Light
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
Electrical
energy
All
functions
enabled
Dis-
charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately about 8 hours exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” (page E-49) for important information you
need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
• See “Power Saving Function” (page E-70) for more information.
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-3
About This Manual
E-4
• Depending on the model of your watch, display text
appears either as dark figures on a light background or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
background.
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
•
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 under “Operating Precautions”
and “User Maintenance.”
Contents
General Guide ......................................................................................................... E-8
Radio-controlled Atomic Timekeeping ............................................................... E-10
World Time ............................................................................................................. E-29
Stopwatch ..............................................................................................................E-34
Countdown Timer .................................................................................................. E-36
Alarms ....................................................................................................................E-40
Illumination ............................................................................................................E-45
Power Supply ........................................................................................................ E-49
Timekeeping .......................................................................................................... E-57
Hand Home Position Correction ..........................................................................E-66
Reference .............................................................................................................. E-70
Specifications ....................................................................................................... E-79
Operating Precautions ......................................................................................... E-82
User Maintenance ................................................................................................. E-91
E-5
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To specify your Home City ................................................................................... E-12
To perform manual receive .................................................................................. E-24
To check the latest signal reception results ...................................................... E-26
To view the current time in another time zone ...................................................E-31
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-32
To swap your Home City and World Time City ................................................... E-33
To measure times with the stopwatch ................................................................ E-35
To use the countdown timer ................................................................................ E-37
To configure countdown start time and auto-repeat settings .......................... E-38
E-6
To set an alarm time ............................................................................................. E-41
To turn an alarm on and off.................................................................................. E-43
To turn the Hourly Time Signal on and off ..........................................................E-44
To illuminate the display manually ...................................................................... E-45
To turn the auto light switch on and off.............................................................. E-48
To set the time and date manually ...................................................................... E-58
To change the Daylight Saving Time (summer time) setting ............................ E-63
To specify the Dual Time City .............................................................................. E-65
To trigger the auto hand home position correction manually .......................... E-67
To adjust the home positions manually.............................................................. E-68
To recover from the sleep state ........................................................................... E-71
To turn Power Saving on and off ......................................................................... E-72
E-7
General Guide
• Press C to change from mode to mode.
• In any mode (except a setting mode), press B to illuminate the display for about
one second.
Timekeeping Mode
Press C.
▲
E-8
World Time Mode (page E-29) Stopwatch Mode (page E-34)
▲
Alarm Mode (page E-40) Countdown Timer Mode (page E-36)
▲
▲
▲
E-9
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
• This watch is designed to pick up the time calibration signals transmitted in Germany
(Mainflingen), England (Anthorn), the United States (Fort Collins), China
(Shangqiu), and Japan (Fukushima, Fukuoka/Saga).
• See the information under “Signal Reception Troubleshooting” (page E-27) if you
experience problems with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see “To specify your Home City” on page E-12.
E-10
• When using the watch outside the areas covered by the time signal transmitters, you
will have to adjust the current time setting manually as required. See
and date manually” (page E-58) for more information about manual time settings.
• The U.S. time calibration signal can be picked up by the watch while in North
America. The term “North America” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
• As of January 2008, China does not use Daylight Saving Time (DST). If China does
go to the Daylight Saving Time system in the future, some functions of this watch
may no longer operate correctly.
“To set the time
E-11
To specify your Home City
City code
Left dial
hand
PM indicator
E-12
Seconds
Hour : Minutes
1. In the Timekeeping Mode, hold down A for about five
seconds until the left dial hand points to T1 and the city
code flashes on the upper display. This is the setting
mode.
2. Press D (east) and B (west) to select the city code
you want to use as your Home City.
LIS, LON : Lisbon, London
MAD, PAR , ROM, BER, STO : Madrid, Paris, Rome,
ATH : Athens
MOW : Moscow
HKG, BJS, TPE : Hong Kong, Beijing, Taipei
SEL, TYO : Seoul, Tokyo
HNL : Honolulu
ANC : Anchorage
YVR, LAX : Vancouver, Los Angeles
YEA, DEN : Edmonton, Denver
MEX, CHI : Mexico City, Chicago
Berlin, Stockholm
MIA, YTO, NYC : Miami, Toronto, New York
YHZ : Halifax
YYT : St.Johns
3. Press A twice to exit the setting mode.
• Normally, your watch should show the correct time as soon as you select your Home
City code. If it does not, it should adjust automatically after the next auto receive
operation (in the middle of the night). You also can perform manual receive (page
E-24) or you can set the time manually (page E-58).
• The watch will receive the time calibration signal automatically from the applicable
transmitter (in the middle of the night) and update its settings accordingly. For
information about the relationship between city codes and transmitters, see page
E-17 and “Transmitters” (page E-74).
• See the maps under “Approximate Reception Ranges” (page E-18) for information
about the reception ranges of the watch.
E-13
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically up to six
times a day (five times for the China signal). When any auto receive is successful,
remaining auto receive operations are not performed. For more information, see
“About Auto Receive” (page E-21).
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a
button. For more information, see “To perform manual receive” (page E-24).
E-14
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side pointing towards a window.
This watch is designed to receive a time calibration signal late at night. Because of
this, you should place the watch near a window as shown in the illustration when you
take it off at night. Make sure there are no metal objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.
E-15
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
E-16
Inside a
vehicle
Near household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport, or
other sources
of electrical
noise
Near hightension power
lines
Among or
behind
mountains
• The time calibration signal the watch will attempt to pick up depends on its current
Home City code setting as shown below.
Home City Code
LON, PAR , BER, ATH,
LIS, MAD, ROM, STO, MOW
HKG, BJS
TPE, SEL, TYO
HNL*, ANC*, LAX, DEN,
CHI, NYC, YVR, YEA, MEX,
MIA, YTO, YHZ, YYT
* The areas covered by the HNL, ANC, and MOW city codes are quite far from the
time calibration signal transmitters, and so certain conditions may cause problems
with signal reception.
• Calibration signal reception is disabled while a countdown timer operation is in
progress.
Transmitter
Anthorn (England)
*
Mainflingen (Germany)
Shangqiu City (China)
Fukushima (Japan)
Fukuoka/Saga (Japan)
Fort Collins, Colorado
(the United States)
Frequency
60.0 kHz
77.5 kHz
68.5 kHz
40.0 kHz
60.0 kHz
60.0 kHz
E-17
Approximate Reception Ranges
U.K. and German Signals
1,500 kilometers
Anthorn
500 kilometers
The Anthorn signal is
receivable within this
area.
E-18
Mainflingen
U.S. Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Japan Signals
500 kilometers
Fukuoka/Saga
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
1,500 kilometers
500 kilometers
Chengdu
Shangqiu
500 kilometers
Fukushima
1,000 kilometers
China Signal
Changchun
Beijing
Shanghai
Hong Kong
E-19
• Signal reception may not be possible at the distances that are further than those
noted below during certain times of the year or day. Radio interference also may
cause problems with reception.
Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers
(310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
Shangqiu (China) transmitter: 1500 kilometers (910 miles)
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
E-20
About Auto Receive
The watch receives the time calibration signal automatically up to six times a day (five
times for the China signal). When any auto receive is successful, remaining auto
receive operations are not performed. The reception schedule (calibration times)
depends on your currently selected Home City, and whether standard time or Daylight
Saving Time is selected for your Home City.
Your Home City
LON
Standard Time
LIS
Daylight Saving Time
PAR
Standard Time
BER
Daylight Saving Time
MAD
ROM
STO
ATH
Standard Time
Daylight Saving Time
Standard Time
MOW
Daylight Saving Time
1:00 am
2:00 am
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
Auto Receive Start Times
1 2 3 4 5 6
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight
Midnight
1:00 am*
*
4:00 am
5:00 am
5:00 am
Midnight
Midnight
*
1:00 am*
1:00 am*
*
2:00 am*
5:00 am
Midnight
Midnight
1:00 am*
*
*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
Midnight
1:00 am*
*
1:00 am*
*
2:00 am*
2:00 am*
3:00 am*
3:00 am*
4:00 am*
E-21
*
Your Home City
HKG
Standard Time
BJS
TYO
Standard Time
TPE
SEL
HNL
Standard Time and
ANC
Daylight Saving Time
LAX
DEN
CHI
NYC
YVR
YEA
MEX
MIA
YTO
YHZ
YYT
E-22
Auto Receive Start Times
1 2 3 4 5 6
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
Midnight
1:00 am
2:00 am
3:00 am
4:00 am
Midnight
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
5:00 am
*Next day
Note
• When a calibration time is reached, the watch will receive the calibration signal only
if it is in either the Timekeeping Mode or World Time Mode. Reception is not
performed if a calibration time is reached while you are configuring settings.
• Auto receive 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 receive the signal easily.
• The watch receives the calibration signal for two to 14 minutes everyday when the
time in the Timekeeping Mode reaches a calibration time. Do not perform any button
operation within 14 minutes before or after the calibration times. Doing so can
interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current time in
your Home City, as kept in the Timekeeping Mode.
E-23
To perform manual receive
Receiving
W (WORK)
E-24
R (READY)
1. Place the watch on a stable surface so its 12 o’clock
side is facing towards a window (page E-15).
2. In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps.
3. The digital display will go blank, and the left dial hand
will move to R (READY). This indicates that the watch is
getting ready for time calibration signal reception.
• See the information under “Signal Reception
Troubleshooting” (page E-27) if you experience
problems.
• The left dial hand will move to W (WORK) and stay there
while actual reception is in progress.
• If signal reception is unstable during reception, the left
dial hand may move between W (WORK) and
R (READY).
• The hour and minute hands continue to keep time
normally.
Receive successful
Receive failed
• Time calibration signal reception takes from two to
seven minutes, but in some cases it can take as long as
14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
• When a signal receive operation is successful, GET
appears on the upper display and the lower display
shows the time and date of the successful operation.
The watch will adjust its time setting in accordance to
with the information provided by the signal.
• The watch will return to the Timekeeping Mode if you
press A or if you do not perform any operation for
about one or two minutes.
• ERR will appear on the upper display if the receive
operation is not successful. The watch will not adjust its
time setting in this case. Press A to return to the
Timekeeping Mode.
E-25
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press any
button.
To check the latest signal reception results
In the Timekeeping Mode, press A to view the last successful receive time and date.
Press A again to return to the previous screen.
▲
▲
Date Hour : Minutes
E-26
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
I can’t
receive a
time
calibration
signal.
Probable CauseProblem What you should do
• You performed some button operation
during auto receive.
• The watch is not in the Timekeeping
Mode or World Time Mode.
• The watch is in a location where the
signal cannot be received for some
reason.
• A countdown timer operation is in
progress.
• Radio interference is often present
during the day time, which can
interfere with signal reception.
• Perform manual receive at
• Enter the Timekeeping
• Enter the Countdown Timer
• Check to make sure the
night or wait until the next
auto receive operation is
performed.
Mode or World Time Mode
and try again.
Mode and stop the
countdown. (page E-36)
watch is in a location where
it can receive the signal
(page E-15).
E-27
The time
setting is
incorrect
following
signal
reception.
• For further information, see page E-15 (“Important!”) and “Radio-controlled Atomic
Timekeeping Precautions” (page E-73).
E-28
Probable CauseProblem What you should do
• If the time is one hour off, the DST
setting may be incorrect.
• The Home City code setting is not
correct for the area where you are
using the watch.
• The home positions of the hands are
off.
• Change the DST setting to
Auto DST (page E-63).
• Select the correct Home
City code (page E-12).
• Enter the home position
adjustment mode and adjust
the home positions (page
E-66).
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