Module No. 1803
1803-1
GENERAL GUIDE
•
If the digital display of your watch is continually changing, see
“About Auto Display” for information on how to stop it.
•
Press C to change from mode to mode. After you perform an operation in
any mode, pressing C returns to the Timekeeping Mode.
Telememo Mode
Timekeeping Mode
A
C
B
Press C
D
L
(Light)
▲
▼
Countdown Alarm Mode
Stopwatch Mode
Alarm Mode
TIMEKEEPING MODE
BACKLIGHT
In addition to normal timekeeping, use the Timekeeping Mode to set the current
time and date.
The backlight uses an EL (electro-luminescent)
panel that cause the entire display to glow for
easy reading in the dark. The watch’s auto light
switch automatically turns on the backlight when
you angle the watch towards your face.
Auto light switch
on indicator
•
Holding down B in the Timekeeping Mode displays the data item that was
on the display when you last exited the Telememo Mode.
A
C
B
Timekeeping Screen
Telememo Mode Screen
•
The auto light switch must be turned on
(indicated by the auto light switch on indicator)
for it to operate.
Day of week
Year
Month – Day
D
Note
The electro-luminescent panel loses
illuminating power after very long use.
L
A
B
•
Hold down B
Battery power
indicator
•
•
The illumination provided by the backlight may be hard to see when viewed
under direct sunlight.
The watch will emit an audible sound whenever the display is illuminated.
This is caused by vibration of the EL panel when it is lit. It does not indicate
malfunction of the watch.
C
D
L
PM indicator
Seconds
•
The backlight automatically turns off whenever an alarm sounds.
Hour : Minutes
To manually turn on the backlight
•
•
In the Timekeeping Mode, press L to illuminate the display. Pressing L
illuminates the display even while you are setting the time and date.
The battery power indicator shows current remaining battery capacity. Certain
functions of this watch may be temporarily disabled when battery power is
low. For details, see “Battery Power Indicator”.
Depending on the mode, pressing L or D turns on the backlight for about two
seconds. See the sections that cover each mode for information on whether
you should press L or D.
•
The backlight remains lit for about two seconds from the point you press the
button, even if it is already lit when you press the button. If you keep the
button depressed for five seconds or more, the backlight automatically turns
off.
To set the time and date
1. Hold down A while in the Timekeeping Mode until the seconds digits start
to flash on the display. The seconds flash because they are selected.
2. Press C to change the selection in the following sequence.
•
The above operation turns on the backlight regardless of the current auto
light switch setting.
About the Auto Light Switch
12/24-Hour
Seconds
Day
Hour
Minutes
Month
Turning on the auto light switch causes the backlight to turn on whenever you
position your wrist as described below. Note that the auto light switch of this
watch will operate only when available light is below a certain level. It does not
turn on the backlight under bright light.
Format
Year
•
Avoid wearing the watch on the inside of your wrist. Doing so causes the
auto light switch to operate when it is not needed, which shortens battery life.
3. While the seconds digits are selected (flashing), press D to reset the seconds
to 00.
•
If you press D while the seconds count is in the range of 30 to 59, the
seconds are reset to 00and 1 is added to the minutes. If the seconds count
is in the range of 00 to 29, the minutes count is unchanged.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you more than 40 degrees causes the backlight to light.
4. While hour, minutes, year, month, or day is selected (flashing), press D to
increase the selection or B to decrease it. The 12/24-hour setting is selected
(flashing), press D to switch between the 12-hour (12H) and 24-hour
(24H) formats.
More
than
40°
•
Holding down either button changes the current selection at high speed.
With the 12-hour format, the P (PM) indicator appears to the left of the hour
digits for times in the range of noon to 11:59 pm and the A (AM) indicator
appears to the left of the hour digits for times in the range of midnight to 11:59
am.
Parallel to
ground
•
•
The 24-hour format is indicated by 24 on the display. Times are shown in the
range of 00:00 to 23:59.
5. After you set the time and date, press A to return to the Timekeeping Mode.
•
•
The day of the week is automatically set in accordance with the date.
The date can be set within the range of January 1, 1995 to December 31,
2039.
•
If you do not operate any button for a few minutes while a selection is flashing,
the flashing stops and the watch goes back to the Timekeeping Mode
automatically.
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1803-3
ALARM MODE
STOPWATCH MODE
You can set up to five independent alarms with
hour, minutes, month, and day. When an alarm
is turned on, an alarm tone sounds for 20
seconds when the time is reached. Press any
button to stop the alarm after it starts to sound.
When the Hourly Time Signal is turned on, the
watch beeps every hour on the hour.
Mode indicator – Alarm No.
Alarm on
The Stopwatch Mode lets you measure elapsed
1/100 second
Mode indicator
time, split times, and two finishes. You also get
Auto-Start function. The range of the stopwatch
is 23 hours, 59 minutes, 59.99 seconds.
Month – Day
indicator
A
B
A
B
•
In the Stopwatch Mode, press D to illuminate
the display.
•
In the Alarm Mode, press L to illuminate the
display. Pressing L illuminates the display
even while you are setting an alarm.
To measure elapsed time
1. Press L to start the stopwatch.
2. Press L to stop the stopwatch.
C
D
C
D
L
L
•
You can resume the measurement operation
by pressing L again.
Alarm Types
The alarm type is determined by the settings you
make, as described below.
Hours
Seconds
Hour : Minutes
Minutes
AM indicator
3. Press B to clear the stopwatch to all zeros.
•
To set a Daily alarm
Set the hour and minutes for the alarm time. Set xx for the month and day (see
step 4 under “To set an alarm time”). This type of setting causes the alarm to
sound everyday at the time you set.
To record split times
1. Press L to start the stopwatch.
2. Press B to display the timing up to that point. Stopwatch timing continues
internally.
3. Press B to clear the split time and to continue time measurement on the
•
To set a Date alarm
Set the month, day, hour and minutes for the alarm time. This type of setting
causes the alarm to sound at the specific time, on the specific date you set.
display.
•
To set a 1-Month alarm
•
You can repeat steps 2 and 3 as many times as you want.
Set the month, hour and minutes for the alarm time. Set xx for the day (see
step 4 under “To set an alarm time”). This type of setting causes the alarm to
sound everyday at the time you set, only during the month you set.
4. Press L to stop the time measurement.
5. Press B to clear the stopwatch to all zeros.
•
To set a Monthly alarm
Set the day, hour and minutes for the alarm time. Set xx for the month (see
step 4 under “To set an alarm time”). This type of setting causes the alarm to
sound every month at the time you set, on the day you set.
To time first and second place finishes
1. Press L to start the stopwatch.
2. Press B when the first finisher crosses the line, and record the time.
3. Press L when the second finisher crosses the line.
4. Press B to display the finishing time of the second finisher.
5. Press B again to clear the stopwatch to all zeros.
To set an alarm time
1. Press D while in the Alarm Mode to select the alarm whose time you want
to set.
About the Auto-Start function
With the Auto-Start function, the watch performs a 5-second countdown. When
the countdown reaches zero, stopwatch operation starts automatically. During
the final three seconds of the countdown, a beeper sounds with each second.
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Hourly Time Signal
To use the Auto-Start function
2. After you select an alarm, hold down A until the hour digits start to flash on
1. While the stopwatch screen is showing all
the display. The hour digits flash because they are selected.
This operation automatically turns on the alarm.
3. Press C to change the selection in the following sequence.
A
B
zeros in the Stopwatch Mode, press A.
This displays a 5-second countdown screen.
To return to the all zeros screen, press A
again.
•
•
•
Hour
Minutes
Month
Day
2. Press L to start the countdown.
C
D
•
When the countdown reaches zero, a tone
sounds and a stopwatch timing operation
starts automatically.
L
4. Press D to increase the selection or B to decrease it. Holding down either
button changes the selection at high speed.
•
Pressing L while the Auto-Start countdown
is in progress immediately start the stopwatch.
•
•
To set an alarm that does not include a month (Daily alarm, Monthly alarm),
set xx for the month. Press B or D until the xx mark appears (between
12 and 1) while the month digits are flashing.
To set an alarm that does not include day (Daily alarm, 1-Month alarm), set
xxfor the day. Press B or D until the xx mark appears (between 31 and
1) while the day digits are flashing.
COUNTDOWN ALARM MODE
•
•
The format (12-hour and 24-hour) of the alarm time matches the format you
select for normal timekeeping.
When setting an alarm time using the 12-hour format, take care to set the
time correctly as morning (A indicator) or afternoon (P indicator).
The countdown timer can be set within a range
of 1 second to 24 hours. When the countdown
reaches zero, an alarm sounds.
1/10 second
Progress beeper on
indicator
•
You can also select auto repeat, which
automatically restarts the countdown from the
original value you set whenever zero is
reached.
5. After you set the alarm, press A to return to the Alarm Mode.
•
Mode indicator
If you do not operate any button for a few minutes while a selection is flashing,
the flashing stops and the watch goes back to theAlarm Mode automatically.
A
B
•
•
You can also use a progress beeper, which
causes the watch to beep at various points
along the countdown.
In the Countdown Alarm Mode, press D to
illuminate the display.
To turn an alarm and Hourly Time Signal on and off
1. In the Alarm Mode, press D to select an alarm or the Hourly Time Signal.
2. When the alarm or Hourly Time Signal you want to is selected, press B to
turn it on and off.
C
D
L
Indicates alarm is ON.
Indicates Hourly Time Signal is ON.
Hours
Seconds
•
•
The alarm on indicator ( ) and the Hourly Time Signal on indicator ( ) are
shown on the display in all modes while these functions are turned on.
An “ ” mark next to the alarm on indicator or Hourly Time Signal on indicator
means that battery power is too low to produce the alarm tone or signal. The
alarm tone or signal will sound again after normal battery power is restored.
Minutes
To set the countdown time
1. Hold down A while in the CountdownAlarm Mode until the hours digit starts
to flash on the display. The hours digit flashes because it is selected.
2. Press C to change the selection in the following sequence.
To test the alarm
Hold down D while in the Alarm Mode to sound the alarm.
Hours
Minutes
Seconds
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1803-4
3. Press D to increase the selection or B to decrease it. Holding down either
Battery Power Indicator
The battery power indicator on the display shows you the current status of the
storage battery’s power.
button changes the selection at high speed.
•
To set the starting value of the countdown time to 24 hours, set 0:00 00.
4. After you set the countdown time, press A to return to the CountdownAlarm
Mode.
Level Indicator
Functional Status
All functions enabled.
•
If you do not operate any button for a few minutes while a selection is flashing,
the flashing stops and the watch goes back to the Countdown Alarm Mode
automatically.
1
2
3
All functions enabled.
Alarms, Hourly Time Signal, backlight disabled.
To use the countdown timer
Alarms, Hourly Time Signal, backlight, display disabled;
timekeeping enabled.
4
5
Press L while in the Countdown Alarm Mode to start the countdown timer.
•
When the countdown reaches zero and auto repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button. The
countdown time is automatically reset to its starting value after the alarm
stops.
Alarms, Hourly Time Signal, backlight, display, timekeeping
disabled.
•
•
At Level 4, the display is disabled but timekeeping and other functions continue
to operate internally. Pressing any button causes the Timekeeping Mode
screen to appear for two or three minutes.
At Level 5, all functions are disabled. Functions are enabled once again after
the storage battery is charged, but anything previously stored in memory is
lost. Because of this, you must set the current time and alarms, and re-input
Telememo data items after the storage battery is charged.
•
•
Press L while a countdown operation is in progress to pause it. Press L
again to resume the countdown.
To completely stop a countdown operation, first pause it (by pressing L),
and then press B. This returns the countdown time to its starting value.
To turn auto repeat on and off
1. Hold down A while in the CountdownAlarm
Auto repeat on indicator
Mode until the hours digit starts to flash on
the display.
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 storage
battery.
2. Press L to turn auto repeat on (AUTO
displayed) and off (AUTO not displayed).
3. Press A to return to the Countdown Alarm
Mode.
A
B
Warning!
Leaving the watch in sunlight to charge its storage battery can cause it to
become quite hot. Take care when handling the watch to avoid burn injury.
•
•
•
•
The auto repeat on indicator (AUTO)
appears in the upper part of the display only
in the start time setting screen (starting time
digits flashing).
C
D
On the dashboard of a car parked in direct sunlight
Too close to an incandescent lamp
Under direct sunlight or in any other area exposed to intense heat for long
periods
L
•
When the end of the countdown is reached while auto repeat is on, the alarm
sounds, but the countdown starts again automatically whenever the countdown
reaches zero. You can stop timing by pressing L, and manually reset to the
starting countdown time by pressing B.
Normally, an alarm tone sounds for about 10 seconds when the end of the
countdown is reached. If you use auto repeat with start time of 10 seconds or
less, the alarm tone sounds for only one second.
Frequent use of auto repeat with a short countdown time can reduce the
charge of the storage battery and cause the countdown time alarm to become
disabled, so it does not sound.
Charging Guide
Required charge time when the backlight is used for two seconds and the alarm
sounds for 20 seconds per day:
•
•
•
•
Approximately 8 hours of 500 lux (indoor fluorescent lighting) per day
Approximately 1 hour 15 minutes of 3,000 lux (direct fluorescent lighting) per
day
Approximately 50 minutes of 36,000 lux (afternoon outdoor sunlight) per week
(7 minutes per day)
•
Required charge time when the backlight is used for 30 seconds and the alarm
sounds for 20 seconds per day:
To turn progress beeper on and off
PressB while in the CountdownAlarm Mode (while the countdown is completely
•
Approximately 4 hours 30 minutes of 3,000 lux (direct fluorescent lighting)
per day
stopped or ongoing) to turn the progress beeper on (
not displayed).
displayed) and off (
•
Approximately 2 hours 20 minutes of 36,000 lux (afternoon outdoor sunlight)
per week (20 minutes per day)
•
When the progress beeper is turned on, the watch beeps as the countdown
time passes the 10, 5, 4, 3, 2, and 1-minute marks, and the 50, 40, 30, 20,
10, 5, 4, 3, 2, and 1-second marks.
Using the Sleep Mode
In any mode (except while figures are flashing
on the display for input), hold down C for about
two seconds.
This enters the Sleep Mode, which causes all
figures (except SLEEP) to disappear from the
display. Timekeeping and other functions
continue to be performed internally, however.
Alarms, the Hourly Time Signal, and the
backlight are disabled while the watch is in
the Sleep Mode.
BATTERY
A
C
B
D
•
This watch is equipped with a solar cell and a
Battery power indicator
storage battery (secondary battery) that is
charged by the electrical power produced by the
solar cell.
A
B
D
•
•
•
The area outside of the LCD digital areas is a
solar cell panel that picks up available light to
charge the storage battery.
L
[Sleep Mode]
Pressing any button (except A) exits the
Sleep Mode and enters the Timekeeping
Mode.
•
A Sleep Mode is provided to conserve battery
power.
C
L
Solar cell panel
About Auto Display
Auto Display is a demonstration feature that continually changes the contents
of the digital display. Note that you cannot use any of the watch’s other functions
while Auto Display is operating.
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 storage
battery power to run down. Be sure that the watch is normally exposed to
light whenever possible.
To turn off Auto Display
•
This watch employs a solar cell that converts light into electricity that charges
a built-in storage battery. Normally, the storage battery should not need
replacement, but after very long use over a number of years, the storage
battery may lose its ability to achieve a full charge. Should you notice problems
with getting the storage battery to a full charge, contact your dealer or CASIO
distributor about having the storage battery replaced.
The storage battery should be replaced with a CASIO-specified ML-2020
battery only. Other storage batteries can cause damage to the watch.
Be sure to put the watch into its Sleep Mode and keep in an area normally
exposed to light when storing it for long periods.This helps to keep the storage
battery from going dead.
Hold down A for about two seconds until the watch beeps.
To turn on Auto Display
1. In any mode (except while figures are flashing on the display for input), hold
down C for about two seconds to enter the Sleep Mode.
2. Hold down A for about two seconds until the watch beeps. This indicates
that Auto Display is on.
•
•
•
•
•
You cannot turn onAuto Display while a setting screen (indicated by flashing
digits) is on the display.
Leaving the watch in a dark area can cause Auto Display operation to stop.
Normal operation should resume when the watch is again exposed to light.
Auto Display cannot be turned on while the storage battery is at Level 4 or
Level 5. Auto Display also turns off automatically whenever the storage battery
drops to Level 4 or Level 5.
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1803-5
CHARACTER LIST
1
2
(space) 11
J
K
L
M
N
O
P
Q
R
S
21
22
23
24
25
26
27
28
29
30
T
U
V
W
X
Y
Z
0
1
2
31
32
33
34
35
36
37
38
39
40
3
4
5
6
7
8
9
-
.
/
41
:
A
B
C
D
E
F
G
H
I
12
13
14
15
16
17
18
19
20
3
4
5
6
7
8
9
10
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