G-Shock GW-1500A-1AV - Manual (Page 4)

Operation Guide 3366
4
4. Press A to exit the setting screen.
• When you exit the setting screen, the analog hands are adjusted automatically to
match the digital time. See “Analog Timekeeping” for more information.
• Auto DST ( AvtA ) can be selected only while HNL , ANC , LAX , DEN , CHI , or
NYC is selected as the Home City code. For more information, see “Daylight Saving
Time (DST)” below.
• For information about specifying how long the face of the watch remains illuminated,
see “To specify the illumination duration”.
• For details about configuring settings for the Power Saving feature, see “Power
Saving”.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
The time calibration signals include both Standard Time and DST data. When the auto
DST setting is turned on, the watch switches between Standard Time and DST
(summer time) automatically in accordance with the signal it receives.
• The auto DST setting can be turned on only while HNL , ANC , LAX , DEN , CHI ,
or NYC is selected as the Home City code.
• If you experience problems receiving the time calibration signal in your area, it is
probably best to switch between Standard Time and Daylight Saving Time (summer
time) manually.
To change the Daylight Saving Time (summer time) setting
1. While any screen other than the last signal screen is on the display in the
Timekeeping Mode, hold down A until the city code starts to flash, which indicates
the setting screen.
2. Press C once and the DST setting screen appears.
3. Use D to cycle through the DST settings in the sequence shown below.
Auto DST ( A t ) DST off ( OFF ) DST on ( ON )
4. Press A to exit the setting screen.
• The DST indicator appears on the display to indicate that Daylight Saving Time is
turned on.
Analog Timekeeping
The analog time of this watch is synchronized with the digital time. The analog time
setting is adjusted automatically whenever you change the digital time.
Note
• The hands for the analog timepiece move to adjust to a new setting whenever any of
the following occurs.
When you change the digital time setting manually
When the digital time setting is changed by time calibration signal reception
When you change the Home City code and/or DST setting
• If the analog time does not match the digital time for some reason, use the
procedure below to adjust the analog time to the digital time.
• Whenever you need to adjust both the digital and the analog time settings manually,
make sure you adjust the digital setting first.
• Depending on how much the hands have to move in order to adjust to the digital
time, it may take some time before they stop moving.
To adjust the analog time
1. In the Timekeeping Mode, press C five times to enter
the Hand Setting Mode.
2. Hold down A until the current digital time starts to
flash, which indicates the analog time setting screen.
3. Press D to advance the analog time setting by 20
seconds.
• Holding down D advances the analog time setting at
high speed.
• If you need to advance the analog time setting a long way, hold down D until the
time starts advancing at high speed, and then press B . This locks the high-speed
hand movement, so you can release the two buttons. High-speed hand movement
continues until you press any button. It will also stop automatically after the time
advances 12 hours or if an alarm starts to sound.
4. Press A to exit the setting screen.
• The minute hand will be adjusted slightly to match the seconds when you exit the
setting screen.
• To return to the Timekeeping Mode, press C .
l
ll l l l
ll
lll
ll lll
ll
l
Power Supply
This watch is equipped with a solar cell and a special rechargeable battery
(secondary battery) that is charged by the electrical power produced by the solar cell.
The illustration shown below shows how you should position the watch for charging.
Example: Orient the watch so its face
is pointing at a light source.
• The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.
• Normally, you should try to keep the
watch outside of your sleeve as much
as possible. Charging is significantly
reduced if the face is only partially
covered.
Solar cell
Important!
• 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 rechargeable battery
power to run down. Make sure that the watch is normally exposed to bright light
whenever possible.
• This watch uses a special rechargeable battery to store power produced by the solar
cell, so regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the special rechargeable battery to fully charge, contact your
dealer or CASIO distributor about having it replaced.
• Never try to remove or replace the watch's special battery yourself. Use of the wrong
type of battery can damage the watch.
• The current time and all other settings return to their initial factory defaults whenever
battery power drops to Level 4 and when you have the battery replaced.
• Turn on the watch’s Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the rechargeable
battery from going dead.
Battery Power Levels
The digital display show you the current level of the rechargeable battery’s power.
• All of the watch's functions are available when (high) or (medium) is
indicated on the Battery Level Screen.
Function Status
All functions enabled.
All functions enabled.
Except for internal
timekeeping and the charge
indicator, all functions and
display indicators are
disabled.
All functions disabled.
Level
1
2
3
(Charge
soon alert)
4
Digital Display
Charge indicator
l ll lllll ll ll l
• Level 1 and Level 2 are indicated on the Battery Level Screen only. Level 3 and
Level 4 are indicated in all modes.
• The flashing charge indicator at Level 3 tells you that battery power is very low, and
that exposure to bright light for charging is required as soon as possible.
• When the battery level approaches Level 3, the analog hands move automatically to
the 12 o’clock position. Charge the battery as soon as possible when this happens.
All of the digital screen indicators flash while the analog hands are in motion.
• When battery power is at Level 3, time calibration signal reception are disabled.
• At Level 4, all functions are disabled and settings return to their initial factory
defaults. Functions are enabled once again after the rechargeable battery is
charged, but you need to set the digital time and date, after the battery reaches
Level 3 from Level 4. You will not be able to set any of the other settings until the
battery reaches Level 2 after dropping to Level 4.
• Display indicators reappear as soon as the battery is charged from Level 4 to Level 3.
• If the analog time and digital time do not match after the watch recovers to Level 2
from Level 3 or Level 4 , adjust the analog hand setting so it matches the digital time.
• Leaving the watch exposed to direct sunlight or some other very strong light source
can cause the digital display to temporarily show a reading that is higher than the
actual battery level. The correct battery level should be indicated after a few minutes.
Recover Indicator
If you use illumination or alarms a number of times during
a short period, the recover indicator (R) appears on the
display and the following operations become disabled until
battery power recovers.
Illumination; Beeper tone; Coordination between digital
and analog timekeeping; Time calibration signal reception
After some time, battery power will recover and the
recover indicator will disappear, indicating that the above
functions are enabled again.
• If the battery drops to Level 3 while the recover indicator is on the display, the
Battery Level Screen will indicate . Charge the battery as soon as possible.
• If the recover indicator appears frequently, it probably means that remaining battery
power is low. Leave the watch in bright light to allow it to charge.
lll
llll ll ll l l
Recover indicator
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery 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
Charging Guide
After a full charge, timekeeping remains enabled for up to about nine months.
• The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day
(5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate Exposure Time
8 minutes
30 minutes
48 minutes
8 hours
• Since these are the specs, we can include all the technical details.
• Watch is not exposed to light
• Internal timekeeping
• Display on 18 hours per day, sleep state 6 hours per day
• 1 light operation (1.5 seconds) per day
• 10 seconds of alarm operation per day
• 4 calibration receptions per day
• Stable operation is promoted by frequent charging.
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
41 hours
155 hours
251 hours
12 hours
43 hours
69 hours
– – –
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window
(10,000 lux)
Daylight Through a Window
on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting
(500 lux)
Approximate Exposure Time
Level 4 Level 3 Level 2 Level 1 ▲ ▲ ▲
3 hours
7 hours
11 hours
120 hours
▲
Exposure Level
(Brightness)