Operation Chart: Module Qw-2339 - Casio GS-310 Service Manual & Parts List

2. OPERATION CHART: MODULE QW-2339

• Press C to change from mode to mode.
• Pressing B in any mode illuminates the digital display for about 1.5 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.
Timekeeping Mode
Press C.
Press
D.
TIMEKEEPING MODE
• Press D to toggle the display between the date screen
(day of the week, month, day) and the time screen (hour,
Hour hand Minute hand
minutes, seconds).
To set the time and date
1. While in the Timekeeping Mode, hold down A until the
Month-
Day
seconds digits flash on the display, indicating the set-
ting screen.
Day of
2. Press C to move the flashing in the sequence shown
week
Press D.
below.
3.While the seconds setting is selected (flashing), press
D to reset it to 00. If you press D while the seconds
setting is in the range of 30 to 59, the seconds are re-
set 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
Hour Seconds
Minutes
unchanged.
24H indicator
DST on indicator
DST
Seconds DST DST City Code
Day Month
∗
• While the DST (Daylight Saving Time) setting is selected, press D to toggle it on
and off. If you turn the DST on, the DST on indicator appears on the display.
• The DST on/off setting you make for the city code that is currently selected in the
Timekeeping Mode (your home time city) is also applied to that city code in the
World Time Mode.
• While the city codes setting is selected, use D (+) and B (–) to scroll thorough the
available codes until the one you want to use as your home time city is displayed.
• For full information on city codes, see the "CITY CODE TABLE".
• While the 12/24-hour setting is selected, press D to switch between the two for-
mats.
• 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 24H indicator is on the display while 24-hour timekeeping is selected.
• While any other setting is selected (flashing), press D (+) or B (–) to change it.
Holding down either button changes the setting at high speed.
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.
∗ Daylight Saving Time (DST), which is also sometimes called "summer time" ad-
vances 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.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch function is turned on, the backlight automatically turns on
for about 1.5 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 More than 15 degrees
too high
GENERAL GUIDE
World Time Mode Telememo Mode
Hour Minutes
Year 12/24
40 °
More than 15 degrees
too low
Alarm Mode
• Static electricity or magnetic force can interfere with proper operation of the auto
backlight 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 one or two seconds to turn the auto light
switch function on and off.
ON
• 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 six hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.
• Pressing B at any time illuminates the display, 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 be-
cause the EL light vibrates slightly when lit. It does not indicate malfunction of the
watch.
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 acci-
dents, 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 dis-
traction, which can result in a traffic accident and serious personal injury.
WORLD TIME MODE
DST on indicator
The World Time Mode shows you the current time in 27
Mode indicator 1
cities (29 time zones) around the world.
• For full information on city codes, see the "CITY CODE
TABLE".
• The time setting of the Timekeeping Mode and the World
Time Mode are synchronized. Whenever you change
the time setting for any city in the Timekeeping Mode,
the settings of all World Time cities are changed ac-
cordingly.
City
Code To select a World Time City and view its time
Press
1. In the World Time Mode, press D to scroll forward
Press A.
D.
through the city codes (time zones). Holding down D
scrolls at high speed.
2. When the city code you want is on the display, press
A to view its current time.
Mode Current Time in
indicator 2 City Code zone
3. While the time screen is on the display, press D to switches back to the city code
screen.
• At this point you could press D again to scroll through city codes.
Daylight Saving Time (DST)
Daylight Saving Time automatically advances the time setting by one hour from
Standard Time. You can make individual Daylight Saving Time settings for each city
code (time zone). Remember that not all countries or even local areas use Daylight
Saving Time.
To switch between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to display the city code (time zone) whose stan-
dard time/daylight saving time setting you want to change.
2. Hold down A toggle between Daylight Saving Time and Standard Time.
• The DST indicator appears on the display whenever you display a city code for
which daylight saving time is turned on.
— 2 —
Stopwatch Mode Hand Setting Mode
Hold down D.
Auto light switch
OFF
indicator