Casio 5073 Operation Manual

MA0905-EA
Congratulations upon your selection of this CASIO watch.
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.
About This Manual
World Time
n World Time Hour Hand: Indicates the current time in the World Time City in
m World Time Minute Hand
This User's Guide uses numbers shown above to identify watch hands and indicators.
Things to check before using the watch
1. Hold down C for about two seconds to enter regular timekeeping, and then
observe the movement of the x Second Hand.
Is the x Second Hand moving smoothly at one-second intervals?
Is the x Second Hand moving at
two-second intervals or is it stopped
completely?
Power is low. Charge the watch by placing
it in a location where it is exposed to light.
For details, see "Charging the Watch".
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under "To configure Home City settings" to configure your Home
City and daylight saving time settings.
Important!
Proper time calibration signal reception and World Time settings depend on correct
Home City, Home Time, and Home Date settings. 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".
• To set the time manually
See "Configuring Current Time and Date Settings Manually".
The watch is now ready for use.
For details about the watch's radio controlled timekeeping feature, see "Radio
Controlled Atomic Timekeeping".

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, 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.
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.
Operation Guide 5073
Button operations are indicated using the letters A
through D shown in the illustration.
Hand Functions
Regular timekeeping
z Hour Hand
x Second Hand
c Minute Hand
v Day of the Week Hand
b Day
24-hour format.
NO YES
The watch is charged sufficiently.
For details about charging, see
"Charging the Watch".
YES NEXT
Go to step 2.
When wearing the watch,
make sure that its face is
not blocked from light by the
sleeve of your clothing.
• The watch may enter a
sleep state if its face is
blocked by your sleeve
even only partially.
Power Levels
You can get an idea of the watch's power level by
observing the movement of the x Second Hand.
• If the x Second Hand is moving normally at one-second
intervals, power is at Level 1.
•
If the x Second 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.
Level Hand Movement
1 Normal
x Second Hand moves at two-second
2 intervals.
b Day changes to 1 (home position).
x Second Hand stopped.
3 z Hour Hand and c Minute Hand stopped
at 12 o'clock.
• When power drops to Level 3, all functions will be disabled but the watch will
continue to keep time internally for about one week. If you recharge the battery
sufficiently during this period, the analog hands will move automatically to the
correct setting and regular timekeeping will resume. After one week, all settings
(including timekeeping) will be cleared. Recharging the battery will reset all settings
to their initial factory defaults.
Charging Times
Daily
Exposure Level (Brightness) Operation
Outdoor sunlight (50,000 lux) 8 min.
Window sunlight (10,000 lux) 30 min.
Window sunlight on cloudy day
48 min.
(5,000 lux)
Indoor fluorescent lighting (500 lux) 8 hours
1 Approximate exposure each day to generate power for normal daily operation
*
* 2 Approximate exposure to take power up one level
• The above times are for reference only. Actual times depend on lighting conditions.
• For details about the operating time and daily operating conditions, see the "Power
Supply" section of the Specifications.
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a
certain period in an area where it is dark. The table below shows how watch functions
are affected by Power Saving.
• There actually are two sleep state levels: "second hand sleep" and "function sleep".
Elapsed Time in Dark Operation
60 to 70 minutes x Second Hand only stopped at 12 o'clock, all other
(second hand sleep) functions enabled
• All functions, including analog timekeeping, disabled
6 or 7 days (function sleep)
• Internal timekeeping maintained
•
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch
is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep
state.
To recover from the sleep state
Move the watch to a well-lit area or press any button.

Radio Controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.
However, when using the watch outside of areas covered by time calibration signals,
you will have to adjust the settings manually as required. See "Configuring Current
Time and Date Settings Manually" for more information.
This section explains how the watch updates its time settings when the city code
selected as the Home City is in Japan, North America, Europe, or China, and is one
that supports time calibration signal reception.
If your Home City Code setting The watch can receive the signal from the
is this: transmitter located here:
LON, PAR, ATH Anthorn (England), Mainflingen (Germany)
HKG Shangqiu City (China)
TYO Fukushima (Japan), Fukuoka/Saga (Japan)
HNL, ANC, LAX, DEN, CHI, NYC Fort Collins, Colorado (United States)
Important!
• The areas covered by HNL and ANC are quite far from the calibration signal
transmitters, so certain conditions may cause reception problems.
•
When HNL or HKG is selected as the Home City, only the time and date are
adjusted according to the time calibration signal. You need to switch manually
between standard time and daylight saving time (DST) if required. See "To toggle
the Home City time between standard time and daylight saving time" for information
about how to do this.
Function Status
All functions enabled
Time calibration signal reception
disabled
All functions disabled
Level Change *2
Level 3 Level 2 Level 1
*1
2 hours 24 hours
6 hours 89 hours
9 hours 145 hours
98 hours – – –
1