Casio 2235-1 User Manual
Module No. 2235
2
2235-1
• Press C to change from mode to mode.
GENERAL GUIDE
• Pressing E in any mode besides the Alarm Mode illuminates to the display for about three seconds. The backlight is disabled while a setting screen is on the display.
• If you do not perform any operation for a few minutes while a setting screen (with flashing digits) is on the display, the watch automatically exits the setting screen.
• If you do not perform any operation for a few minutes in any mode besides stopwatch mode, the watch automatically reverts to the normal timekeeping screen.
Timekeeping Mode Day Counter Mode
Press C.
TIMEKEEPING MODE
Press D to toggle between 12-hour and 24-hour time-
Seconds
Minutes
DST indicator 2
DST indicator
Press . Press .
Beep
Day
keeping.
• With 12-hour timekeeping, times between midnight and
noon are indicated by A (am), while times between noon
and midnight are indicated by P (pm).
• The A and P indicators do not appear for 24-hour time-
keeping.
• Pressing B plays a melody. To stop a playing melody,
press any button besides E.
• Special melodies play each year on January 1 and December 25.
• Pressing E while a melody is playing toggles the dis-
play between an animated character and the name of
the melody.
∗
See the “MELODY LIST” for the names of melodies.
• Press E to illuminate the display for about three seconds.
Volume
(VOL)
3.While the seconds setting is selected (flashing), press
• If you press D or B while the seconds setting is in the
range of 30 to 59, the seconds are reset to 00 and 1 is
added to the minutes. If the seconds setting is in the
range of 00 to 29, the minutes count is unchanged.
• While the DST∗ (Daylight Saving Time) setting is se-
lected, press D or B to toggle it on and off.
• DST indicator 1 is displayed in the Timekeeping Mode
setting screen only when the DST setting is selected. It
shows ON when the DST setting is on, and OFF when
the DST setting is off.
• DST indicator 2 is displayed in the Timekeeping Mode,
Day Counter Mode and Alarm Mode when the DST setting is turned on.
∗
Daylight Saving Time (DST), which is also sometimes
called “summer time” advances the time for one hour, as
is the custom in some areas during the summer. Remember that not all countries or even local areas use
Daylight Saving Time.
Sound
(SOUND)
D or B to reset it to 00.
Musical tone
Press or .
Off
MonthDay
Month
Day of week
Hour
PM indicator
Timekeeping Mode Settings
In addition to settings for the current time and date, the Timekeeping Mode setting
screen also lets you turn button tones and melody play on and off, adjust tones and
melody volume, and adjust display contrast.
To make Timekeeping Mode settings
1.While in the Timekeeping Mode, hold down A until the seconds digits flash on the
display, indicating the setting screen.
2.Press C to move the flashing in the sequence shown below. Press E to move
the flashing in the opposite direction.
Press . Press .
Seconds DST Hour Minutes Year
Contrast
(CNT)
DST indicator 1
• While the SOUND (button tones) setting is selected, press D or B to turn the
beep and musical tone on and off, as shown below.
• Changing the SOUND also changes the Hourly Time Signal tones.
• While the VOL setting is selected, press D or B to toggle it between loud and
soft.
Alarm Mode Stopwatch Mode Memo Mode
4.After you make the settings you want, press A to exit the setting screen.
• The day of the week is automatically set in accordance with the date.
• The date can be set within the range of January 1, 2000 to December 31, 2039.
• The watch’s built-in full automatic calendar automatically makes allowances for dif-
ferent month lengths and leap years.
Once you set the date, there should be no reason to change it except after the
replacement of the watch’s battery.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on
for two seconds under the conditions described below. Avoid wearing the watch on
the inside of your wrist. Doing so causes the auto light switch to operate when not
needed, 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
• 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.
Parallel to ground
• Static electricity or magnetic force can interfere with proper operation of the auto
light switch function. If the auto backlight does not illuminate, try moving the watch
back to the starting position (parallel with the ground) and then tilt it back toward
you again. 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.
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down D for two seconds to turn the auto light switch
function on and off.
• The auto light switch indicator is shown on the display in all modes while the auto
light 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.
• Pressing E in any mode besides the Alarm Mode illuminates the display for about
three seconds, regardless of the 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.
More than 15 degrees
too high
Auto light switch
indicator
Hold down D.
ON OFF
More than 15 degrees
too low
40
°
• While the CNT setting is selected, press D to make the display darker, or B to
make it lighter.
• While any other setting is selected (flashing), press D to increase it or B to de-
crease it. Holding down either button changes the setting at high speed.
Loud
Soft
2235-2
e
Mode indicator
Alarm number
Melody name
Hour
Minutes
Current time
Warning!
• Never try to read your watch when mountain climbing or hiking in areas that
are 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 might be vehicular or pedestrian
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.
ABOUT THE ANIMATED CHARACTER
An animated character appears on the display of the watch any time you turn on the
EL backlight after December 25, 2000. No animated character appears before then.
DAY COUNTER MODE
Mode indicator
Text
Year
Month
Target Dat
Day counter
record number
The Day Counter Mode lets you count the number of days from the Timekeeping
Mode’s current date to a specific target date.
• There are five Day Counter records, each of which can be assigned up to 12 characters of text and a target date.
• When a target date is reached, the DAYS indicator flashes on the display in the
Timekeeping Mode. The DAYS indicator also flashes in the Day Counter Mode
when the screen for the target date is on the display.
• The DAYS indicator flashes on the target date each year, regardless of the year
setting of the target date.
• The initial default date for a Day Counter record is 2001/1/1, and the text area
contains All spaces. (All spaces for the text display a series of hyphens “ – – – – – ”.)
Recalling Day Counter Data
In the Day Counter Mode, press D to scroll through the Day Counter record screens.
• The day count is a negative value whenever the target date comes before the current date.
• The display can show only five characters at a time. Longer text scrolls continuously from right to left. The symbol “
left is the last, and the character or digit to the right is the first.
To set the target date
1.In the Day Counter Mode, press D to display a record number you want to set.
2.Hold down A until the first (leftmost) text character starts to flash on the display.
This indicates the input screen.
3.Press C to move the flashing in the sequence shown below. Press E to move
the flashing in the opposite direction.
4. While the flashing is located within the text area, use D or B to scroll through
characters at the current location of the flashing. Holding down either button scrolls
through characters at high speed.
Press . Press .
∗
See the “CHARACTER LIST” for details.
5. While any other setting is selected, press D to increase it or B to decrease it.
Holding down either button changes the setting at high speed.
• Pressing D and B at the same time while the flashing is located within the text
area clears any input text and resets the date setting to the current date. At this
time the message “CLEAR” appears on the display.
• Pressing D and B at the same time while the flashing is located within the date
area resets the date setting to the current date without affecting the text.
6.After you make the settings you want, press A to exit the input screen.
• The date can be set within the range of January 1, 1940 to December 31, 2039.
Number of days
” indicates that the character or digit to the
Press . Press .
Character 1
Day
Space A to Z
Hyphen SymbolsNumbers
Day
DAYS indicator
Character 12
Punctuation
YearMonth
Japanese
characters
ALARM MODE
You can set up to five melody alarms. When a Daily Alarm is turned on, its melody
alarm sounds for about 20 seconds at the preset time each day. In the Timekeeping
Mode, press any button (except E) to stop the melody alarm after it starts to sound.
Pressing E while a melody is playing toggles the display between an animated character and the name of the melody that is playing. When the Hourly Time Signal is
turned on, the watch beeps every hour on the hour.
Special melodies play on January 1 and December 25, regardless of the current
alarm sound setting (beep or melody), and cannot be played by setting the watch
ahead or back to these dates.
Normally, the following events occur at midnight on January 1 and December 25,
your local time. Note however that these events do not occur in area or countries (for
example, parts of Australia) located in time zones that come before (east of) Japan’s
time zone.
• The time signal sounds, regardless of whether the hourly time signal is turned on or
off.
• The backlight lights for three seconds.
• The special melodies play automatically. There is no way to disable play of the
special melodies. To stop a melody when it starts to play, press any button besides
E.
To set the alarm time for January 1 and December 25
1.While in the alarm Mode, press D to display the alarm number you want to set.
Alarm 1 Alarm 5Alarm 2 Alarm 3 Alarm 4
SIG: 00 (Hourly Time Signal)
2.Hold down A until the hour digits start to flash on the display, indicating the setting
screen. The alarm is automatically turned on at this time.
3.Press C to change the selection in the sequence shown below.
Hour Minutes
4.Press D to increase it or B to decrease it. Holding down either button changes
the setting at high speed.
5.After you make the settings you want, press A to exit the setting screen.
To set the alarm time for other days
1.While in the alarm Mode, press D to display the alarm number you want to set.
Alarm 1 Alarm 5Alarm 2 Alarm 3 Alarm 4
SIG: 00 (Hourly Time Signal)
2.Hold down A until the melody setting starts to flash on the display, indicating the
setting screen. The alarm is automatically turned on at this time.
3.Press C to change the selection in the sequence shown below.
Melody Setting Hour Minutes
4. While melody setting is selected, press D or B to toggle it between BEEP and
melody.
DD
D or
DD
BB
B.
BB
Press
∗
See the “MELODY LIST” for the names of melodies.
∗
Some melody alarms tune names may be displayed in abbreviated format.
• While any other setting is selected, press D to increase it or B to decrease it.
Holding down either button changes the setting at high speed.
5.After you make the settings you want, press A to exit the setting screen.
• 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 or afternoon.
To stop the alarm
• Press any button to stop the alarm after it starts to sound. Pressing E while in the
Timekeeping Mode displays the name of the melody, alternating with animated
characters.
To turn a daily Alarm or the Hourly Time Signal on and off
1.Use D to display the alarm you want to turn on or off, or the screen for turning the
Hourly Time Signal on or off.
Alarm indicator 2
Alarm indicator 1
2.Press B to toggle the displayed alarm or Hourly Time
Signal on and off.
• Alarm indicator 1 is displayed in all modes when any of
the five alarms is turned on.
• Alarm indicator 2 is displayed in the Alarm Mode only.
It shows on when the currently displayed alarm is on,
and OF when the currently displayed alarm is off.
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