Casio BGX-260 Service Manual & Parts List
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-900
JUL. 2005
MODULE NO.
QW-2960
BGX-260
R
(WITHOUT PRICE)
CONTENTS
Page
1. SPECIFICATIONS: MODULE QW-2960 .................................................... 1
2. OPERATION CHART: MODULE QW-2960 ............................................... 2
3. DRAWINGS: MODULE QW-2960
3-1. LCD DIAGRAM ............................................................................................. 8
3-2. CIRCUIT DIAGRAM ...................................................................................... 9
3-3. CHECKING TERMINALS AND COMPONENTS ......................................... 10
4. EXPLODED VIEW: MODULE QW-2960 ................................................... 11
5. PARTS LIST: MODULE QW-2960 ............................................................ 12
6. PRECAUTIONS FOR REPAIR: MODULE QW-2960
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE .....................................13
6-2. ACCURACY CHECKING ............................................................................. 13
6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING....................................14
6-4. HOW TO CHECK TILT SENSOR................................................................. 14
1. SPECIFICATIONS: MODULE QW-2960
Item Detail
Battery CTL1616 (Storage battery)
Note: Use CTL1616 only. Other storage battery or CR1616 can cause
damage to the watch.
Battery life Approx. 1 year (from full charged condition)
Current consumption 1.05 µA maximum
Alarm system Piezo plate on Cover/Back
Accuracy ±15 sec./month
Accuracy setting system Trimmer capacitor
Accuracy checking See page 13
Functions
• Shock resistant
• Electro-luminescent backlight
Full auto EL light
• Solar powered
• World time
29 time zones (27 cities), city code display, daylight saving on/off
• Moon Data (with Moon age indicator)
• Tide graph
Graphical tide display
• 1/100-second stopwatch
Measuring capacity: 59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
• Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 to 60 minutes (1-minute Increments)
Others: Auto-repeat, time up alarm, reset time setting (up to 5 minutes),
count up after countdown (up to 100 hours)
• Daily alarms
5 independent daily alarms (4 one-time alarms and 1 snooze alarm)
• Hourly time signal
• Battery power indicator
• Power Saving (Turns off the display when the watch is left in the dark)
• Auto-calendar (to year 2039)
• 12/24-hour format
•
Regular timekeeping: Hour, minutes, seconds, pm, year, month, date, day
— 1 —
2. OPERATION CHART: MODULE QW-2960
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully and keep it on hand for later reference
when necessary.
Keep the watch exposed to bright light
Bright Light
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• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will cause some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light. Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
Charge
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press B to illuminate
the display.
The electricity generated by the solar cell of the watch is
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stored by a built-in battery. Leaving or using the watch
where it is not exposed to light causes the battery to run
down. Make sure the watch is exposed to light as much as
possible.
• When you are not wearing the watch on your wrist,
Solar cell
position the face so it is pointed at a source of bright
light.
• You should try to keep the watch outside of your sleeve
as much as possible. Even if the face of the watch is
only partially blocked from light, charging will be reduced
significantly.
Bright Light
Rechargeable batter
LEVEL 1
LEVEL 2
LEVEL 3
Timekeeping Mode
Electrical
energy
All
functions
enabled
y
charge
Press C.
Dis-
LEVEL 1
LEVEL 2
LEVEL 3
Some
functions
disabled
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately 50 minutes exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” for important information you need to know
when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
• See “Power Saving Function” for more information.
• The longitude, lunitidal interval, Moon phase indicator and tide graph data that
appear on the display of this watch are not intended for navigation purposes.
Always use proper instruments and resources to obtain data for navigation
purposes.
• This watch is not an instrument for calculating low tide and high tide times. The
tide graph of this watch is intended to provide a reasonable approximation of tidal
movements only.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss, or any
claims by third parties that may arise through the use of this watch.
About This Manual
Warning!
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
Moon / Tide Data Mode World Time Mode
▲
▲
▲
Stopwatch Mode
Alarm Mode
Countdown Timer
Mode
▲
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
Month-Day Screen
PM indicator
Month – Day
• The tide graph shows tidal movements for the current date in accordance with the
current time as kept in the Timekeeping Mode.
• The Moon phase indicator shows the current Moon phase in accordance with the
current date as kept in the Timekeeping Mode.
Important!
• Moon phase, tide graph data, and Moon/Tide Data Mode data will not be displayed
properly unless the Timekeeping Mode current date and time settings and Home
Site data are configured correctly. See “Home Site Data” for more information.
To set the time and date
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Seconds
Power Saving
Hour : Minutes
Seconds
1.In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2.Press C to move the flashing in the sequence shown
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below to select other settings.
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DST on/off
Day Month
Day of the Week Screen
Moon phase indicator
Press D.
▲
▲
Hour
Tide graph
Day of week
Min
utes
Y
12/24-Hour
ear
Format
▲
3. When the setting you want to change is flashing, use D and B to change it as
described below.
To change this setting
Seconds
DST on/off
Hour, Minutes, Year,
Month, Day
12/24-Hour Format
Power Saving
4. Press A twice to exit the setting screen.
• The first press of A displays the GMT differential setting screen. Pressing A again
exits the setting screen.
• 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 DST indicator appears on the display to indicate that Daylight Saving Time is
turned on.
• See “Power Saving Function” for details about configuring Power Saving settings.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
Home Site Data
Moon phase, tide graph data, and Moon/Tide Data Mode data will not be displayed
properly unless the Timekeeping Mode current date and time settings and Home Site
data (GMT differential, longitude, and lunitidal interval) is configured correctly.
• The GMT differential is the time difference of the time zone where the site is located
and Greenwich Mean Time.
• The lunitidal interval is the time elapsing between the Moon’s transit over a meridian
and the next high tide at that meridian. See “Lunitidal Interval” for more information.
• This watch displays lunitidal intervals in terms of hours and minutes.
• The “Site/Lunitidal Interval Data List” provide GMT differential, longitude, and
lunitidal interval information around the world.
• The following is the initial factory default Home Site data (Tokyo, Japan) when you
first purchase the watch, whenever battery power drops to Level 4, and whenever
you have the battery replaced. Change these settings to match the area where you
normally use the watch.
GMT differential (+9.0); Longitude (East 140 degrees); Lunitidal interval (5 hours,
20 minutes)
Perform this button operation
Press D to reset to 00.
Press D to toggle between Daylight Saving Time
(ON) and Standard Time (OF).
Use D (+) and B (–) to change the setting.
Press D to toggle between 12-hour (
24-hour (
Press D to toggle Power Saving on (ON) and off
(OF
).
24H
) timekeeping.
▲
) and
12H
— 2 —
To configure Home Site data
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GMT differential
4. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
GMT differential
Longitude
Lunitidal Interval
Hours, Minutes
5. Press A to exit the setting screen.
1.In the Timekeeping Mode, hold down A until the
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seconds start to flash, which indicates the setting
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screen.
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2.Press A again to display the GMT differential setting
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screen.
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3.Press C to move the flashing in the sequence shown
below to select other settings.
GMT
differential
Longitude
Screen Button Operations
Lunitidal Interval
Hours
Use D (+) and B (–) to change the setting.
• You can specify a value in the range of –11.0
to +14.0, in 0.5-hour unit.
Use D (+) and B (–) to change the setting.
• You can specify a value in the range of
179°W to 180°E, in 1-degree units.
Use D (+) and B (–) to change the setting.
Lunitidal Interval
Minutes
Moon/Tide Data
Moon phase indicator
Moon age
Moon/Tide Data Screens
Each press of A in the Moon/Tide Data Mode toggles between the Moon Data
screen and the Tide Data screen.
Moon phase indicator
Month – Day
• When you enter the Moon/Tide Data Mode, the data that appears first is the Moon
data (Moon age and Moon phase indicator) for the current date as kept by the
Timekeeping Mode.
To view the Moon data for a particular date
While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+) to
display the date whose Moon data you want to view.
• You can select any date starting from the date currently indicated in the Timekeeping
Mode, up to the year 2039. Display of past Moon data and tide data is not supported.
To view tide data for a particular time
1. While the Moon Data screen is displayed in the Moon/Tide Data Mode, use D (+)
2. Press A to switch to the Tide Data screen.
3. Specify the time for which you want to display tide data.
• Use D (+) to change the time in one-hour steps.
Moon Data Screen
to display the date whose tide data you want to view.
• The initial screen shows the tide graph for 6:00 AM.
Moon/tide data lets you view the Moon age and Moon
phase for a particular date, and tidal movements for a
particular date and time for the Home Site.
• If you suspect that the Moon/tide data is not correct for
some reason, check the Timekeeping Mode data
(current time, date, and Home Site settings), and make
changes as required.
• See “Moon Phase Indicator” for information about the
Moon phase indicator and “Tide Graph” for information
about the tide graph.
• All of the operations in this section are performed in the
Moon/Tide Data Mode, which you enter by pressing C.
Tide Data Screen
Tide graph
Press A.
▲
▲
Moon age
Year
Time
World Time
The World Time shows the current time in 27 cities (29
Current time in
the selected city
code
WT
City code
GMT differential
To view the time in another city code
In the World Time Mode, press D to scroll through city codes (time zones).
time zones) around the world.
• The time settings of the Timekeeping Mode and the
World Time Mode are independent from each other, so
you must make separate settings for each.
• Whenever you change the time setting for any city in the
World Time Mode, the settings of all other cities are
changed accordingly.
• For full information on city codes, see the “City Code
Table”.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
To set the current time in the World Time Mode
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DST indicator
4. When the setting you want to change is flashing, use B and D to change it as
described below.
To change this setting
DST on/off
Hour, Minutes
• When setting the world time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
5. Press A to exit the setting screen.
• Note that you cannot switch between Standard Time and Daylight Saving Time while
GM T
is selected as the city code.
• Note that the DST/Standard Time setting affects only the currently displayed city
code. Other city codes are not affected.
• The DST indicator is on the display whenever you display a city code for which
Daylight Saving Time is turned on.
1.In the World Time Mode, use D to select the city code
whose time you want to set.
2.After you select a city code, hold down A until the DST
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on/off setting of the world time starts to flash, which
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indicates the setting screen.
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3.Use C to move the flashing in the sequence shown
below to select other settings.
HourDST on/off
Perform this button operation
Press D to toggle between Daylight Saving Time
(ON) and standard time (OF).
Use D (+) and B (–) to change the setting.
Minutes
Countdown Timer
The countdown timer can be set within a range of one
minute to 60 minutes. An alarm sounds when the
countdown reaches zero. The countdown timer has two
modes: auto-repeat and elapsed time, and a progress
beeper signals the progress of the countdown. All of this
makes the countdown timer a valuable tool for timing the
Minutes Seconds
Configuring the Countdown Timer
The following are the settings you should configure before actually using the
countdown timer.
Countdown start time and reset time
Timer mode (auto-repeat, elapsed time)
Progress beeper on/off
• See “To configure the countdown timer” for information about setting up the timer.
Reset Time
You can specify any point between the countdown start time and the end of the
countdown as the “reset time”. Then while a countdown operation is in progress, you
can press a button to jump to the reset time and resume the countdown from there.
Timer Mode
The countdown timer gives you a choice of two modes: auto-repeat and elapsed time.
Auto-repeat
The auto-repeat mode automatically restarts the countdown from the countdown start
time you set whenever zero is reached.
• The auto-repeat mode is best when timing the starts of match races.
• Even if you start a countdown operation from the reset time, the countdown
automatically restarts from the countdown start time whenever it reaches zero.
• Auto repeat timing repeats up to seven times.
Elapsed Time
When the end of the countdown is reached in the elapsed time mode, the timer
automatically switches to an elapsed time measurement operation.
• The elapsed time mode is best when timing the speed of yachts during ocean races.
• The elapsed time operation is performed in one-second increments up to 99 hours,
59 minutes, 59 seconds.
Countdown Timer Beeper Operations
The watch beeps at various times during a countdown so you can keep informed
about the countdown status without looking at the display. The following describes the
types of beeper operations the watch performs during a countdown.
Countdown End Beeper
The watch emits a short beep each second of the final 10 seconds at the end of a
countdown, and a long beep when the countdown reaches zero.
• The countdown end beeper always sounds, regardless of the on/off status of the
progress beeper.
Progress Beeper
The progress beeper actually includes two beepers: a reset time beeper and a reset
period progress beeper.
• The reset time beeper and reset period progress beeper sound only while the
progress beeper is turned on.
Reset Time Beeper
The reset time beeper is similar to the countdown end beeper. When the progress
beeper is turned on, the watch beeps each second of the final 10 seconds before the
countdown reaches the reset time.
Reset Period Progress Beeper
The reset period is the portion of the countdown between the reset time and zero.
When the progress beeper is turned on, the watch emits four short beeps at the top of
each minute during the reset period, and 30 seconds before the end of the
countdown.
start of a surfing or a yacht race.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C.
— 3 —
Countdown Timer Examples
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Auto-repeat;
Progress beeper: On
Start Time Reset Time
10'00"
Reset Time Beeper
Countdown start time: 10 minutes; Reset time: 5 minutes; Timer mode: Elapsed time;
Progress beeper: Off
Start Time Reset Time
10'00"
To configure the countdown timer
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3. When the setting you want to change is flashing, use D and B to change it as
described below.
Setting
Start Time
Reset Time
Timer
Mode
Progress
Beeper
4. Press A to exit the setting screen.
• The reset time setting must be less than the countdown start time setting.
To use the countdown timer
To do this:
Stop the countdown operation
Resume a stopped countdown operation
Display the countdown start time
Stop the countdown operation and display the reset time
Start the countdown from the displayed reset time
• The table below describes button operations you can perform during an elapsed
time measurement operation in the elapsed time mode.
To do this:
Stop the elapsed time operation
Resume a stopped elapsed time operation
Display the countdown start time
Stop the elapsed time operation and display the reset time
Start the countdown from the displayed reset time
5'00"
5'00"
1.While the countdown start time is on the display in the
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2.Press C to move the flashing in the sequence shown
Screen Button Operations
Use D (+) and B (–) to change the setting.
• You can set a start time in the range of 1 to 60 minutes
Use D (+) and B (–) to change the setting.
• You can set a reset time in the range of 1 to 5 minutes
Press D to toggle between the auto-repeat mode (ON)
and the elapsed time mode (OFF).
• An auto-repeat indicator (
Press D to toggle progress beeper on (ON) and off (OFF).
In the Countdown Timer Mode, press D to start the
countdown timer.
• The countdown timer measurement operation continues
• The table below describes button operations you can
Reset Period
Reset Period Progress Beeper
Countdown
End Beeper
Countdown Timer Mode, hold down A until the
countdown start time setting starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” to
display it.
below to select other settings.
Start
Time
in 1-minute increments.
in 1-minute increments.
repeat mode is selected.
even if you exit the Countdown Timer Mode.
perform to control countdown operations.
Reset
Time
Timer
Mode
) appears when the auto-
Do this:
Press D.
Press D again.
While the countdown is
stopped, press A.
Press A.
Press D.
Do this:
Press D.
Press D again.
While the elapsed time is
stopped, press A.
Press A.
Press D.
Countdown
End Beeper
0'00"1'00" 0'30"2'00"3'00"4'00"
Elapsed time
measurement
0'00"
Progress
Beeper
Alarms
Alarm time
(Hour : Minutes)
Alarm number
SNZ
To set an alarm time
• You can configure Alarm 1 as a snooze alarm or a one-time alarm. Alarms 2
through 5 can be used as one-time alarms only.
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash. This indicates the setting screen.
• This operation automatically turns on the alarm.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
• When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (P indicator).
5. Press A to exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds. In the case of the snooze
alarm, the alarm operation is performed a total of seven times, every five minutes, or
until you turn the alarm off or change it to a one-time alarm.
Note
• Pressing any button stops the alarm tone operation.
• Performing any one of the following operations during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Displaying the Alarm
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn Alarms
One-time alarm on
indicator
To select the operation of Alarm
1. In the Alarm Mode, use D to select Alarm 1.
2. Press A to cycle through the available settings in the sequence shown below.
Snooze alarm on indicator ( ) and one-time alarm on indicator ( )
One-time alarm on Snooze alarm on Alarm off
• The applicable alarm on indicator ( or ) is displayed in all modes when an
alarm is turned on.
• SNZ indicator flashes during the 5-minute intervals between alarms.
• Displaying the Alarm 1 setting screen while the snooze alarm is turned on
automatically turns off the snooze alarm (making Alarm 1 a one-time alarm).
To turn the hourly time signal on and off
Hourly time signal on
indicator
You can set five independent Daily Alarms. When an
alarm is turned on, the alarm tone sounds when the alarm
time is reached. One of the alarms can be configured as a
snooze alarm or a one-time alarm, while the other four are
one-time alarms.
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
• There are five alarm screens numbered 1 through 5.
The hourly time signal screen is indicated by :00.
• When you enter the Alarm Mode, the screen you were
viewing when you last exited the mode appears first.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
1.In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
-1
:00 -5
1
setting screen
2
5
through
on and off
1.In the Alarm Mode, use D to select a one-time alarm
(alarm number 2 through 5).
2.Press A to toggle the displayed alarm on and off.
• Turning on a one-time alarm (2 through 5) displays the
one-time alarm on indicator (
• If any alarm is on, the one-time alarm on indicator is
shown on the display in all modes.
1
1.In the Alarm Mode, use D to select the Hourly Time
Signal.
2.Press A to toggle it on and off.
• Turning on the Hourly Time Signal causes the hourly
time signal on indicator (
modes.
-2
) to be displayed in all
-3
-4
) on its screen.
— 4 —
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