Casio 1966 User manual

1966-1
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down BB
BB
Bfor one or two seconds to turn the auto light
switch function on and off.
•Theautolightswitchindicatorisshownonthedisplayinallmodeswhiletheautolight
switch function is on.
•In order to protect against running down the battery, the auto light switch function is
automatically turned off approximately three hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.
•PressingLL
LL
Lwhilein the TimekeepingMode illuminates thedisplay, regardless ofthe
auto light switch’s on/off setting.
Caution
•The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.
•Frequent use of the backlight shortens the battery life.
•The watch emits an audible sound whenever the display is illuminated. This is
because the EL light vibrates slightly when lit. It does not indicate malfunction of the
watch.
Warning!
•Nevertrytoreadyourwatchwhenmountainclimbingor hiking inareasthatare
dark or in areas with poor footing. Doing so is dangerous and can result in
serious personal injury.
•Never try to read your watch when running where there is the danger of
accidents,especially in locations where there mightbevehicularorpedestrian
traffic. Doing so is dangerous and can result in serious personal injury.
•Never try to read your watch when riding on a bicycle or when operating a
motorcycle or any other motor vehicle. Doing so is dangerous and can result
in a traffic accident and serious personal injury.
•When you are wearing the watch, make sure that its auto light switch function
is turned off before riding on a bicycle or operating a motorcycle or any other
motor vehicle.
Sudden and unintended operation of the auto light switch can create a
distraction, which can result in a traffic accident and serious personal injury.
Module No. 1966
Timekeeping Mode Countdown Alarm Mode
GENERAL GUIDE
•Press CC
CC
Cto change from mode to mode.
•After you perform an operation in any mode, pressing CC
CC
Creturns to the Timekeeping Mode.
•If you do not press any button for a few minutes while making settings in any mode (indicated when settings are flashing), the watch automatically clears the setting screen (settings stop
flashing) and returns to the normal display for the mode you are in.
•This watch returns to the Timekeeping Mode whenever you hold down the CC
CC
Cbutton for one or two seconds. If you ever lose track of what mode you are in or what you should do next,
hold down CC
CC
Cto return to normal timekeeping.
•In any mode press LL
LL
Lto illuminate the display.
Stopwatch Mode Alarm Mode Dual Time Mode
TIMEKEEPING MODE
To set the time and date
1.Hold down AA
AA
Awhile in the Timekeeping Mode until the
seconds digits flash on the display because they are
selected .
2.Press CC
CC
Cto change the selection in the following se-
quence.
Seconds
Day
Minutes
12/24-Hour Format
Hour
Day of week Month
Day of
week Month
Day
PM indicator
Hour Minutes
Seconds
3.While the seconds digits are selected (flashing), press DD
DD
Dto reset the seconds to
00. If you press DD
DD
Dwhile the seconds count is in the range of 30 to 59, the seconds
are reset to 00 and 1 is added to the minutes. If the seconds count is in the range
of 00 to 29, the minutes count is unchanged.
4.While any other digits (beside seconds) are selected (flashing), press DD
DD
Dto in-
crease the number or BB
BB
Bto decrease it. While the 12/24-hour format setting is
selected, press DD
DD
Dor BB
BB
Bto toggle it between 12 and 24. While the day of the week
is selected (flashing), press DD
DD
Dto advance to the next day or BB
BB
Bto return to the
previous day.
•Except for when adjusting the seconds or setting the 12/24-hour format, holding
down a button changes the current selection at high speed.
•When the 12-hour format is selected, the indicator Pappears on the display to
indicate “P.M.” times. There is no indicator for “A.M.” times.
•When the 24-hour format is selected, the indicator 24 appears on the display.
5.After you set the time and date, press AA
AA
Ato return to the Timekeeping Mode.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on
fortwoseconds under theconditionsdescribedbelow. Avoidwearingthewatch onthe
insideof yourwrist.Doing socausesthe autolightswitch tooperatewhen notneeded,
which shortens battery life.
Moving the watch to a position that is parallel to the ground and then tilting it
towards you approximately 40 degrees causes the backlight to illuminate.
Parallel to ground 40
°
•The backlight may not illuminate if the face of the watch is more than 15 degrees off
parallel to the left or right. Make sure that the back of your hand is parallel to the
ground.
•Static electricity or magnetic force can interfere with proper operation of the auto
backlightfunction.Iftheautobacklightdoesnotilluminate,trymovingthewatchback
tothestartingposition(parallelwiththeground)andthentiltitbacktowardyouagain.
If this does not work, drop your arm all the way down so it hangs at your side, and
then bring it back up again.
•Under certain conditions the backlight may not light until about one second or less
after turning the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
Parallel to ground More than 15 degrees too
high More than 15 degrees too low
Auto light switch
indicator
Hold down BB
BB
B
ON OFF
COUNTDOWN ALARM MODE
The countdown alarm can be set within a range of 1 sec-
ond to 24 hours. When the countdown reaches zero, an
alarm sounds for 10 seconds or until you press any but-
ton.
To set the countdown start time
1.Hold down AA
AA
Awhile in the Countdown Alarm Mode. The
hours digits flash on the display because they are
se-
lected.
2.Press CC
CC
Cto change the selection in the following se-
quence.
Hour Minutes Seconds
Current time
Progress
beeper on
indicator
Auto repeat
on indicator
1/10
Seconds
Seconds
Minutes
Mode indicator
3.Press DD
DD
Dto increase the selected number or BB
BB
Bto decrease it. Holding down either
button changes the selection at high speed.
•Press DD
DD
Dand BB
BB
Bat the same time to clear the starting time to 0:00' 00".
•To set the starting value of the countdown time to 24 hours, set 0:00' 00".
4.After you set the countdown start time, press AA
AA
Atwice to return to the Countdown
Alarm Mode.
To use the countdown alarm
1.Press DD
DD
Dwhile in the Countdown Alarm Mode to start the countdown alarm.
2.Press DD
DD
Dagain to stop the countdown alarm.
•You can resume countdown alarm operation by pressing DD
DD
D.
3.Stop the countdown alarm and then press BB
BB
Bto reset the countdown time to its
starting value.
•When the end of the countdown is reached and auto repeat timing is off, the alarm
sounds for 10 seconds or until you stop the alarm by pressing any button. Count-
down timing stops and the countdown time is automatically reset to its starting
value after the alarm stops.

1966-2
ALARM MODE
When the Daily Alarm is switched on, the alarm sounds
for 20 seconds at the preset time each day. Press any
button to stop the alarm after it starts to sound. When the
Hourly Time Signal is on, the watch beeps every hour on
the hour.
To set the alarm time
1.Hold down AA
AA
Auntil the hour digits start to flash on the
display. The hour digits flash because they are
select-
ed
.
•This operation will switch the Daily Alarm on automati-
cally.
2.Press CC
CC
Cto change the selection in the following se-
quence.
DUAL TIME MODE
The Dual Time Mode lets you keep track of the time in
another time zone. You can also select the timekeeping
format (12-hour or 24-hour) separately from the Timekeep-
ing Mode.
To set the Dual Time
1.Hold down AA
AA
Awhile in the Dual Time Mode. The hour
digits flash on the display because they are
selected .
2.Press CC
CC
Cto change the selection in the following se-
quence.
3.Press DD
DD
Dto increase the selected digits and BB
BB
Bto de-
crease them. Holding down either button changes the
selection at high speed.
4.After you set the time, press AA
AA
Ato return to the Dual Time Mode.
•In the Dual Time Mode, the seconds count is synchronized with the seconds count
of the Timekeeping Mode.
•In the Dual Time Mode, press BB
BB
Bto toggle between the 12-hour and 24-hour for-
mats.
To set the Target Time and to turn it on and off
1.While the display is showing all zeros in the Stopwatch
Mode, hold down AA
AA
A, and the hour digit of the target
time starts to flash because it is
selected .
2.
Press
CC
CC
C
to change the selection in the following sequence.
3.Press DD
DD
Dto increase the selected number or BB
BB
Bto de-
crease it. Holding down either button changes the se-
lection at high speed.
•Press DD
DD
Dand BB
BB
Bat the same time to clear the setting to
0:00' 00".
4.Press AA
AA
Ato move the flashing to the target time ON/OFF setting.
5.DD
DD
Dor BB
BB
Bto toggle the target time on and off.
6.Press AA
AA
Ato return to the Stopwatch Mode.
Important!
The alarm will not sound if you do not turn on the target time.
•Press AA
AA
A,CC
CC
C or LL
LL
L to stop the alarm after it starts to sound.
To switch auto repeat timing and the progress beeper on and off
1.Hold down AA
AA
Awhile in the Countdown Alarm Mode. The hour digits flash on the
display because they are
selected . Press AA
AA
Aagain to move the flashing to the auto
repeat ON/OFF setting.
2.Press DD
DD
Dor BB
BB
Bto toggle auto repeat on ( ) and off.
3.Press CC
CC
Cto move the flashing to the progress beeper ON/OFF setting.
4.Press DD
DD
Dor BB
BB
Bto toggle the progress beeper on (
) and off.
5.Press AA
AA
Ato return to the Countdown Alarm Mode.
•When the end of the countdown is reached while auto repeat is on, the alarm sounds,
but the countdown restarts from the beginning without stopping. You can stop the
countdown by pressing DD
DD
Dand manually reset to the start time by pressing BB
BB
B.
•If you set a starting time of 10 seconds or less and have Auto Repeat turned on, the
countdown alarm tone (which normally sounds for 10 seconds) sounds for only one
second.
•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.
STOPWATCH MODE
The Stopwatch Mode lets you measure elapsed time, split
times, and two finishes. The range of the stopwatch is 23
hour, 59 minutes, 59.99 seconds. You can also have an
alarm sound when a target time is reached. The Stop-
watch Mode also features an Auto-Start function.
Current time
Target time on indicator
Mode indicator
Minutes Seconds
1/100 Seconds
(a) Elapsed time measurement
Start Stop Re-start Stop Clear
Start Split Split release Stop Clear
Start Split Stop Split release Clear
(b) Split time measurement
(c) Split time and 1st-2nd place times
First runner
finishes. Second runner finishes.
Record time of
first runner.
Record time of
second runner.
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.
To turn the Auto-Start function on and off
While the display is showing all zeros in the Stopwatch Mode, press BB
BB
Bto toggle it on
and off.
•The indicator AUTO-ST appears and 05 is shown in the upper display while Auto-
Start is turned on. The AUTO-ST indicator is not shown and the upper part of the
display shows the current time when Auto-Start is turned off.
About the Target Time function
With the Target Time function, an alarm sounds for ten seconds whenever the time
being kept by the stopwatch reaches a target time you have preset.
Hour Minutes Seconds
Seconds
Hour
Minutes
Mode indicator
Target time on indicator
Hour Minutes
Current time
Hour
Minutes
Mode indicator
Alarm on indicator
Hourly time signal on
indicator
3.Press DD
DD
Dto increase the selected digits and BB
BB
Bto decrease them. Holding down
either button changes the selection at high speed.
•The format (12-hour and 24-hour) of the alarm time matches the format you select
for normal timekeeping.
•When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning (no indicator) or afternoon (P).
4.After you set the alarm time, press AA
AA
Ato return to the Alarm Mode.
To turn the daily alarm and hourly time signal on and off
Press BB
BB
Bwhile in the Alarm Mode to change the status of the daily alarm and hourly
time signal in the following sequence.
Both ON
Hourly Time
Signal Only
Daily Alarm
Only
Both OFF
•The alarm on indicator ( ) and the Hourly Time Signal on indicator (y) are
shown on the display in all modes while these functions are turned on.
To test the alarm sound
Hold down BB
BB
Bwhile in the Alarm Mode to sound the alarm.
•Note that pressing BB
BB
Balso changes the alarm and the hourly time signal ON/OFF
settings.
Hour Minutes
Current time
Hour
Minutes
Mode indicator