Casio STR-600, QW-2634 Service Manual & Parts List

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Page 1

SERVICE MANUAL

& PARTS LIST

REF. NO. S/M-843

FEB. 2004

MODULE NO.

QW-2634

STR-600

(WITHOUT PRICE)

Page 2

CONTENTS

Page

1. SPECIFICATIONS: MODULE QW-2634 .................................................... 1

2. OPERATION CHART: MODULE QW-2634 ............................................... 2

3. DRAWINGS: MODULE QW-2634

3-1. LCD DIAGRAMS ..........................................................................................7

3-2. CIRCUIT DIAGRAM ..................................................................................... 8

3-3. CHECKING TERMINALS AND COMPONENTS ......................................... 9

4. EXPLODED VIEW: MODULE QW-2634 ................................................... 10

5. PARTS LIST: MODULE QW-2634 ............................................................ 11

6. PRECAUTIONS FOR REPAIR: MODULE QW-2634

6-1. AC (ALL CLEAR) AND REMOVING OF MODULE ....................................12

6-2. ACCURACY CHECKING ............................................................................ 12

6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING...................................13

6-4. HOW TO CHECK TILT SENSOR................................................................ 13

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1. SPECIFICATIONS: MODULE QW-2634

Item Detail

Battery CTL1616 (Storage battery)

Note: Use CTL1616 only. Other storage battery or CR1616 can cause

damage to the watch.

Battery life Approx. 10 months Current consumption 1.19 µA maximum Alarm system Piezo plate on Cover/Back Accuracy ±15 sec./month Accuracy setting system Trimmer capacitor Accuracy checking See page 12 Functions: • Electro-luminescent backlight

Full auto EL light

• Solar powered

• Dual time

• Stopwatch: Time and distance measurements Measuring unit: 1/100 second Measuring capacity: Lap time (9:59'59.99") ; Split time (99:59'59.99") Measuring modes: Elapsed time, lap/split times Memory capacity: Up to 51 records (used by lap/split time records and log

title screens) Others: lap/split number, Auto start (Automatically starts a Stopwatch Mode

elapsed time operation at a preset time); target split times (Watch beeps when target time is reached and displays Target Split Differential); Leg indicators

• Alarms 5 independent alarms (each can be set with daily alarm or weekly 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 2049

• 12/24-hour format

• Regular timekeeping: Hour, minutes, seconds, am/pm, month, date, day

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Page 4

2. OPERATION CHART: MODULE QW-2634

SAVE

Getting Acquainted

Congratulations upon your selection of this CASIO watch. T o get the most out of your purchase, be sure to carefully read this manual and keep it on hand for later reference when necessary.

Expose the watch to bright light to charge its battery before using it.

You can use this watch even as its battery is being charged by exposure to bright light.

Be sure to read “Battery” of this manual for important information you

•

need to know when exposing the watch to bright light.

If the digital display of the watch is blank...

If the SLEEP indicator is on the display (either flashing or steady), it means that the display is blank because the watch’s Power Saving function has turned off the display to conserve power. Power Saving automatically turns off the display and enters a sleep state whenever the watch is left for a certain period where it is dark.

•

The initial factory default setting is Power Saving on.

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The watch recovers from the sleep state if you move it to

a well-lit area the watch towards your face for reading.

It can take up to two seconds for the display to turn

on.

•

See “Power Saving Function” for more information.

, if you press any button, or if you angle

About This Manual

(Light)

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.

General Guide

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Press to change from mode to mode.

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In any mode (except for the Recall Mode), press to illuminate the display.

Stopwatch Mode

Timekeeping Mode

Press .

▲

F:50

STW

▲

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. The Timekeeping Mode also has a Dual Time screen that lets you view the current time in Kona, Hawaii, which is the site of the Ironman Triathlon.

•

In the Timekeeping Mode, press to toggle between the Date and the Dual Time

screens.

PM indicator

Day of week

Setting the Time and Date

When setting the time, you can also configure settings for the display illumination duration, the 12/24-hour format, power saving on/off, and the Dual Time screen.

About the Dual Time screen

The Dual Time screen is initially set up to show the time in Kona, Hawaii, which is the site of the Ironman Triathlon. You can leave this setting the way it is or change it to show the current time in another time zone.

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If you need to adjust the current Kona time setting, use the “Time Differential Table”

for reference. If you live in T okyo for example, you would need to subtract 19 hours from the current T okyo time to determine the current time in Kona, Hawaii. Note that the times in the “Time Differential Table” are standard times. You need to subtract one hour from these times during periods when summer time (Daylight Saving Time) applies.

•

You can also use the Dual Time screen to keep track of the current time in another

area outside of the Kona, Hawaii time zone. If you do, you should turn off (Kona time zone indicator) on the Dual Time screen. This will cause the indicator to be replaced by an indicator that shows the day of the week for the current date.

Date

Hour : Minutes

To set the time and date

Seconds Hour Minutes

Hour DayMinutes

3. When the setting you want to change is flashing, use and to change it as described below.

Dual time settings

Dual Time

Seconds

Press .

▲

Dual time

mat

(Hour : Minutes)

KOA

Year

Month

Month – Day

1.In the Timekeeping Mode, hold down until the seconds start to flash, which indicates the setting screen.

2.Press to move the flashing in the sequence shown

below to select other settings.

KOA/Day of

the week

Kona time zone indicator

Power

Saving

12/24-Hour

For

▲

Alarm Mode

ALM

To do this:

Screen

10:58

12H

2004

KOA

4. Press to exit the setting screen.

Reset the seconds to Toggle the display illumination duration setting

between 1.5 seconds ( ) and 2.5 seconds ( )

6-30

Change the hour or minutes Toggle between 12-hour (

6-30

(

) timekeeping

24H

Change the year, month, or day

6-30

Toggle power saving on ( ) and off ( )

Switch between the

3:58

DUAL

___

and (day of the week) Change the dual time hour or minutes

Stopwatch

The 1/100-second stopwatch measures elapsed time, as well as lap/split times. The Stopwatch Mode also includes a number of features and functions for the triathlete, including lap/split time memory, auto-start, target splits, leg (event) indicators, and more.

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All of the operations in this section are performed in the

Stopwatch Mode, which you enter by pressing .

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See “Timing a Triathlon” for information about triathlon

functions.

Measuring Elapsed Time

Use the following procedure to perform a basic elapsed time operation with the stopwatch.

•

The stopwatch continues to run until you stop it. If the

elapsed time measurement reaches the maximum limit, it will restart from zero.

1.In the Stopwatch Mode, press to start the elapsed time measurement.

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Starting an elapsed time operation displays the

elapsed time in the center of the display and in the lower part of the display.

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Note that pressing will not start an elapsed time

operation while an auto-start countdown is being performed. In this case, you need to stop the autostart countdown before starting the elapsed time operation.

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Elapsed time measurement continues even if you exit

the Stopwatch Mode.

2.To stop elapsed time measurement, hold down for about two seconds until the watch emits two short beeps and then one long beep.

Hours

STW

Remaining memory

1/100 second Seconds

F:50

Timekeeping Mode time

Minutes

To measure elapsed time

Recall Mode

▲

) and 24-hour

12H

ON OFF

(Kona) indicator

KOA

▲

Target Mode

Do this:

Press . Press while the

seconds count is flashing. Use (+) and (–).

Press .

Use (+) and (–).

Press .

Use (+) and (–).

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Page 5

Pressing while an elapsed time operation is in progress or stopped cycles the

•

lower Stopwatch Mode display between the three screens shown below.

Split Time Timekeeping Target Split Differential

3. To clear the displayed stopwatch times to all zeroes, stop elapsed time measurement and then hold down for two seconds until the display and the watch beeps.

•

Keep depressed until the watch beeps. If you release after

flash but the watch does not beep yet, the Stopwatch Mode measured times will reappear.

Recording Lap and Split Times

“Lap time” is the time spent to cover a specific segment of a race, such as one lap around a track. “Split time” is the time spent from the beginning of a race up to a certain point.

•

The explanations in this section describe general lap and split time registration,

without using the target split feature for triathlon timing. They assume that all target splits are turned off. See “Timing a Triathlon” for more information about target splits.

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Lap/split times are stored in memory automatically whenever you perform a lap/split

time operation with the C button. See “Recall Mode” for more information.

To record lap/split times

Lap/Split number

Split time

4. To stop the elapsed time measurement, hold down for about two seconds, until the watch emits two short beeps, followed by one long beep.

•

After stopping elapsed time measurement, you can resume it by pressing .

5. To clear the displayed stopwatch times to all zeroes, stop elapsed time measurement and then hold down for two seconds until the display and the watch beeps.

•

Keep depressed until the watch beeps. If you release after

flash but the watch does not beep yet, the Stopwatch Mode measured times will reappear.

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The lap/split number of the current lap/split flashes on the display while an elapsed

time measurement is in progress. Lap/split numbers are automatically incremented starting from maximum lap/split number is number count to restart from

Auto-start

Auto-start automatically starts a stopwatch elapsed time operation when a time set by you is reached.

Auto-start is coordinated with the current Timekeeping Mode time. The stopwatch

•

elapsed time operation will start automatically when the auto-start time you specify is reached in the Timekeeping Mode.

Note that you can configure an auto-start time or turn auto-start on or off only while

•

the Stopwatch Mode screen shows all zeroes.

To set the auto-start time

Auto start time

Timekeeping Mode time

To turn auto-start on and off

Time remaining untill auto-start (hours, minutes, seconds)

Timekeeping Mode time

Countdown Screen

Mode Time

1.In the Stopwatch Mode, press to start an elapsed time measurement.

Lap time

2.Press to freeze the current lap time in the center of

the display and the current split time in the lower display. The lap and split times are automatically stored in memory at this time.

•

Pressing causes the watch to beep twice. The lap

time and split time will remain frozen on the display for about eight seconds. After that, the display will automatically change back to the elapsed time display, which will show the time of the next lap in the center and the total elapsed time (split time) at the bottom.

•

Stopwatch timing continues internally while the lap/

split times are frozen on the display.

3.You can repeat step 2 as many times as you want.

CLR

stops flashing on

CLR

starts to

whenever you press in step 2 of the above procedure. The

. Recording a lap/split after that causes the lap/split

1.While the Stopwatch Mode screen shows all zeroes, hold down until the hour setting of the auto-start

time starts to flash, which indicates the setting screen.

2.Press to move the flashing between the hour and

minute settings.

3.While a setting is flashing, use (+) and (–) to change it.

4.Press to exit the setting screen.

While the Stopwatch Mode screen shows all zeroes, hold

down for about one second to toggle auto-start on (countdown displayed) and off (all zeroes displayed).

•

When auto-start is turned on, the Stopwatch Mode

screen counts down the time remaining until the autostart time is reached. When the countdown reaches zero, the watch beeps three times and a stopwatch elapsed time operation starts automatically, regardless of the mode the watch is currently in.

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The auto-start countdown continues, even if you exit the

Stopwatch Mode.

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Note that a stopwatch elapsed time operation cannot be

started manually by pressing while an auto-start countdown is in progress. You need to turn of f auto-start before using the stopwatch.

CLR

stops flashing on

CLR

starts to

Timing a Triathlon

You can configure the watch with up to five target split

Leg indicator

Lap/Split

times and leg indicators. Then when you time the legs of a

number

triathlon, the watch will display the leg indicators during each leg, and beep when a preset target split time is reached. You can even display the dif ference between a preset target split time and your actual split.

•

See “Stopwatch” for full details about using the

Stopwatch Mode and for more information about lap and split time operations.

Configuring the Watch for Triathlon T iming

You can use the Target Mode to configure the watch with target splits, and to display leg indicators during timing of each leg. Configuring the watch for timing a triathlon consists of the following three steps.

1 Setting target split times 2 Specifying leg indicators 3 T urning on the target splits you want to use

Target Splits and Leg Indicators

You can configure the watch up to five target lap/split times ( specify leg indicators (Swim, Bike, Run) that appear on the display on the Stopwatch Mode screen during timing of each leg. The following shows examples of two possible configurations that you can use.

through ) and

0501

Example 1: Swim: 20 minutes; Bike: 3 hours; Run: 2 hours

Leg Lap/Split Number Target Split

Swim

Bike

Run None None

Example 2: Swim: 20 minutes; Transition: 5 minutes; Bike: 3 hours; T ransition:

5 minutes; Run: 2 hours

Leg Split Number Target Split

Swim

Transition

Bike

Transition

Run

To configure target split times

•

If the hour setting does not flash when you hold down , it probably means that

a Stopwatch Mode elapsed time or auto-start countdown operation is being performed. Go to the Stopwatch Mode and stop the operation.

3. Press to move the flashing between the hour, minute, and seconds settings.

4. While a setting is flashing, use (+) and (–) to change it.

•

You can specify a target split time of up to 99 hours, 59 minutes 50 seconds in

10-second steps.

5. Press to exit the setting screen.

To specify a leg indicator for a split

Leg indicator

To turn a target split on and off

1. In the Target Mode, use and to scroll through the target split screens (

through ) until the one you want to turn on or off is displayed.

2. Press to toggle the currently displayed target split on (target split time displayed)

and off (

x:xx xx

Timing During a Triathlon

Basically, timing a triathlon is the same as elapsed time measurement and lap/split time recording in the Stopwatch Mode. The only difference is that you have the watch configured with target splits and leg indicators before starting actual timing.

To time a triathlon

Leg indicator

Lap time

01 02 03 04 05

1.In the Target Mode, use and to scroll through the target split screens ( whose time you want to set is displayed.

20 minutes 3 hours 20 minutes 5 hours 20 minutes

Off Off

20 minutes

25 minutes 3 hours 25 minutes 3 hours 30 minutes 5 hours 30 minutes

through ) until the one

Press .

01 02 03

2.After you select a target split, hold down until the hour setting of the target split time starts to flash. This is the setting screen.

1.In the Target Mode, use and to scroll through the target split screens ( whose leg indicator you want to specify is displayed.

2.Press to cycle through the leg indicator settings in

the sequence shown below to select the one you want.

SWIM

BIKE

RUN

(Swim)

through ) until the one

SWIM BIKE

RUN

(Bike)

displayed).

1.Use the procedure under “Configuring the Watch for

Lap/Split number

Split time

Triathlon Timing” to configure the watch for triathlon timing.

2.Use to enter the Stopwatch Mode.

3.When you start the first leg of a triathlon (usually the swim leg), press to start an elapsed time measurement.

If you have the watch configured to display leg

•

indicators, the leg indicator will flash on the display. The current lap/split number will also be displayed.

4.When you reach the end of the first leg, press so the watch beeps twice.

This will freeze the time of the first leg (lap/split

•

number lower display. The times will also be stored automatically in memory.

) in the center of the display and in the

0405

0501

SWIM BIKE

RUN

(Run)

Press .

(None)

SWIM

BIKE

RUN

Target split (hours, minutes, seconds)

— 3 —

Page 6

5. After about eight seconds, the display will automatically change back to the elapsed time display, with the time of the current leg (lap) in the center and the total elapsed time (split) at the bottom.

6. Repeat step 4 for each leg of the triathlon.

If you have the watch configured with targets for the transition periods (as in

•

Example 2), perform step 4 when you complete the transitions between legs.

7. When you complete the last leg of the triathlon, hold down for about two seconds, until the watch emits two short beeps, followed by one long beep.

This stops the elapsed time measurement.

•

8. To clear the displayed leg (lap) time and total elapsed time to all zeroes, hold down

for two seconds until

Note

If you have a target split time set and turned on, the watch will beep for three

•

seconds when the split time being measured in the Stopwatch Mode during that split reaches the target split time. You can also display the dif ference between your target split time and the actual time you record for that split.

Pressing while an elapsed time operation is in progress or stopped cycles the

•

lower Stopwatch Mode display between the three screens shown below.

CLR

stops flashing on the display and the watch beeps.

Split Time

• All of the digits of the Target Split Differential contain dashes ( ) if the target split time

feature is turned off or if the current split time exceeds the preset target split time. The target split time differential is displayed using hours, minutes, seconds and 1/100 second when it is less than 10 hours. Hours and minutes only are displayed when the differential is 10 hours or greater.

Target time off Target time exceeded

• Leg indicators can be displayed for up to five splits only. All leg indicators are

displayed if you record more than five lap/split times during an elapsed time operation.

Timekeeping Mode Time

Less than 10 hours 10 hours or greater

Target Split Differential

Recall Mode

Log number

Creation date (Month – Day)

Log Title Screen

To recall stopwatch records

In the Recall Mode, use A (+) and L (–) to scroll through the log title screens, starting from the newest one, as shown below. When the title screen of the log you want is displayed, use E (+) and C (–) to cycle through the records contained in the log.

Oldest Log Title

Next (New) Log Title

• Stopwatch records are stored in “logs” that are created automatically by the watch. See “Memory Management” for more information.

To delete a log

1. In the Recall Mode, display the Log Title screen of the log you want to delete.

2. Hold down B until the watch emits a beep and

• Press and hold B until If you release B before screen without deleting the log.

• Note that you cannot delete a log if the lap time currently displayed in the Stopwatch Mode is part of that log. To delete the log, you first need to reset the Stopwatch Mode screen to all zeroes.

Memory Management

Starting an elapsed time measurement operation in the Stopwatch Mode creates a new log. Any lap/split times recorded during the elapsed time measurement, as well as the final elapsed time are all stored in the records of the log. The log remains open for data storage until you permanently close it by clearing the Stopwatch Mode screen to all zeroes.

• The watch has enough memory to hold up to 51 records. Since each log title screen uses up one record of memory space, the maximum number of lap/split time records you can store depends on how many logs there are currently in memory, as shown below.

• If watch memory is already full when you start a Stopwatch elapsed time measurement operation that creates a new log, the oldest log in memory and all of its records are deleted automatically to make room for the new log.

• If you are adding records to the only log in memory and watch memory becomes full, adding another record causes the oldest record in the log to be deleted automatically to make room for the new record.

▲

Memory Capacity Number of Logs Lap/Split Time Record Capacity

51 records 2 51 records – 2 log title screens = 49

Use the Recall Mode to recall and delete records stored by the Stopwatch Mode.

• The title screen of the newest log appears first whenever you enter the Recall Mode.

• Log numbers are automatically assigned in sequence, starting from

• xx is shown in place of the log number and creation date on the Recall Mode screen if there are no stopwatch records currently in memory.

• All of the operations in this section are performed in the Recall Mode, which you enter by pressing D .

Newest Log Title

▲

CLR starts to flash on the display and then stops flashing.

CLR stops flashing the watch will return to the Log Title

Currently in Memory

01 .

Leg indicator

▲

Lap/Split number

▲

Lap time

Split time

CLR stops flashing on the display.

Press C .

▲

1 51 records – 1 log title screen = 50

5 51 records – 5 log title screens = 46

▲

— 4 —

Alarms

Alarm time (Hour : Minutes)

AM indicator

ALM

Day of week

Timekeeping Mode time

Alarm Types

The alarm type is determined by the settings you configure, as described below.

• Daily alarm

Set the hour and minutes for the alarm time. This type of setting causes the alarm to sound everyday at the time you set.

• Weekly alarm

Set the hour, minutes, and the day of the week for the alarm time. This type of setting causes the alarm to sound every week at the time you set, on the day of the week you set.

To set an alarm time

4. While a setting is flashing, use E (+) or (–) to change it.

• To set an alarm that does not include a day of the week (daily alarm), set for the day of the week. Press E or CC until the mark appears (between

SUN and SAT) while the day of the week setting is flashing.

• When setting the alarm time using the 12-hour format, take care to set the time correctly as a.m. (

5. Press B to exit the setting screen.

Alarm Operation

The alarm sounds at the preset time for about 10 seconds.

• To stop the alarm tone after it starts to sound, press any button.

• The alarm and the Hourly Time Signal operations are performed in all modes except

for the Timekeeping Mode setting screen.

To test the alarm

While in the Alarm Mode, hold down A to sound the alarm.

To turn an alarm and the Hourly Time Signal on and off

Alarm on indicator

You can set up to five independent alarms with hour, minutes, and day of the week. When an alarm is turned on, the alarm tone sounds when the alarm time is reached. You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour.

• The alarm number ( screen. Time Signal screen is on the display.

• When you enter the Alarm Mode, the data 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 D.

Alarm number

1.In the Alarm Mode, use E and C to scroll through the alarm screens until the one whose time you want to set is displayed.

:00 x5

2.After you select an alarm, hold down B until the hour setting of the alarm time starts to flash, which indicates the setting screen.

• This operation automatically turns on the alarm.

3.Press D to move the flashing between the hour, minute, and day of the week settings.

A indicator) or p.m. (P indicator).

1.In the Alarm Mode, use E and C to select an alarm or the Hourly Time Signal.

2.Press B to toggle it on and off.

• Turning on an Alarm (

alarm on indicator on its Alarm Mode screen.

• In all modes, the alarm on indicator is shown for any

alarm that is currently turned on.

• The Hourly Time Signal on indicator is shown on the

display in all modes while the Hourly Time Signal is turned on.

Hourly time signal on indicator

1 through 5) indicates an alarm

:00 is shown for the alarm time when the Hourly

Press E. Press C .

x1 x2

___

x1 through x5) displays the

___

Backlight

Auto light switch on indicator

The backlight uses an EL (electro-luminescent) panel that causes 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.

• The auto light switch must be turned on (indicated by

the auto light switch on indicator) for it to operate.

• You can specify 1.5 seconds or 2.5 seconds as the

display illumination duration. See “To set the time and date” for more information.

• See “Backlight Precautions” for other important

information about using the backlight.

To turn on the backlight manually

Press L in any mode (except for the Recall Mode) to illuminate the display.

• The above operation turns on the backlight regardless of

the current auto light switch setting.

Page 7

About the Auto Light Switch

Turning on the auto light switch causes the backlight to turn on, whenever you position your wrist as described below in any mode. Note that this watch features a “Full Auto EL Light”, so the auto light switch operates only when available light is below a certain level. It does not turn on the backlight under bright light.

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 turn on.

Parallel to ground

Warning!

• Always make sure you are in a safe place whenever you are reading the

display of the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not surprise or distract others around you.

• When you are wearing the watch, make sure that its auto light switch 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.

To turn the auto light switch on and off

In the Timekeeping Mode, hold down L for about two seconds to toggle the auto light switch on (

• The auto light switch on indicator ( auto light switch is turned on.

displayed) or off ( not displayed).

) is on the display in all modes while the

More than 40°

Battery

This watch is equipped with a solar cell and a rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown nearby shows how you should position the watch for charging.

Example: Orient the watch so its face

is pointing at a light source.

• The illustration shows how to position a watch with a resin band.

• Note that charging efficiency drops when any part of the solar cell is blocked by clothing, etc.

• Normally, you should try to keep the watch outside of your sleeve as much as possible. Charging is significantly reduced if the face is only partially covered.

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 rechargeable battery power to run down. Be sure that the watch is normally exposed to bright light whenever possible.

• This watch employs a solar cell that converts light into electricity, which charges a built-in rechargeable battery. Normally, the rechargeable battery should not need replacement, but after very long use over a number of years, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the rechargeable battery to a full charge, contact your dealer or CASIO distributor about having the rechargeable battery replaced.

• The rechargeable battery should be replaced with a CASIO-specified CTL1616 battery only. Other rechargeable batteries can cause damage to the watch.

• All data stored in memory is deleted, and the current time and all other settings return to their initial factory defaults whenever battery power drops to Level 4 and when you have the battery replaced.

• Turn on the watch’s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods. This helps to keep the rechargeable battery from going dead.

Battery Power Indicator and RECOVER Indicator

The battery power indicator on the display shows you the current status of the rechargeable battery’s power.

Level

Battery power indicator

RECOVER indicator

• The flashing CHARGE indicator at Level 3 tells you that battery power is very low, and that exposure to bright light for charging is required as soon as possible.

• At Level 4, all functions are disabled and settings return to their initial factory defaults. Functions are enabled once again after the rechargeable battery is charged, but you need to set the time and date, after the battery reaches Level 3 from Level 4. You will not be able to set any of the other settings until the battery reaches Level 2 after dropping to Level 4.

• Display indicators reappear as soon as the battery is charged from Level 4 to Level 3.

• Leaving the watch in direct sunlight or some other very strong light source can

cause the battery power indicator to temporarily show a reading that is higher than the actual battery level. The correct battery power indicator should appear after a few minutes.

• If you use the backlight or the alarm a number of times during a short period, RECOVER appears on the display, and the backlight and beeper tone become disabled until battery power recovers. After some time, battery power will recover and RECOVER will disappear, indicating that the above functions are enabled again.

• If RECOVER appears frequently, it probably means that remaining battery power is low. Leave the watch in bright light to allow it to charge.

Battery Power Indicator

(Charge Soon Alert)

Solar cell

Function Status

All functions enabled.

All functions enabled. Except for timekeeping and

battery power indicator, all functions and display indicators are disabled.

All functions disabled.

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 rechargeable battery. Also note that allowing the watch to become very hot can cause its liquid crystal display to black out. The appearance of the LCD should become normal again when the watch returns to a lower temperature.

Warning! Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods.

• On the dashboard of a car parked in direct sunlight

• Too close to an incandescent lamp

• Under direct sunlight

Charging Guide

After a full charge, timekeeping remains enabled for up to about 10 months.

• The following table shows the amount of time the watch needs to be exposed to light each day in order to generate enough power for normal daily operations.

Exposure Level (Brightness)

Outdoor Sunlight (50,000 lux) 5 minutes Sunlight Through a Window (10,000 lux) 24 minutes Daylight Through a Window on a Cloudy Day (5,000 lux) 48 minutes Indoor Fluorescent Lighting (500 lux) 8 hours

• Since these are the specs, we can include all the technical details.

• Watch is not exposed to light

• Internal timekeeping

• Display on 18 hours per day, sleep state 6 hours per day

• 1 backlight operation (1.5 seconds) per day

• 10 seconds of alarm operation per day

• Stable operation is promoted by frequent charging.

Recovery Times

The table below shows the amount exposure that is required to take the battery from one level to the next.

Exposure Level

(Brightness)

Outdoor Sunlight (50,000 lux)

Sunlight Through a Window (10,000 lux)

Daylight Through a Window on a Cloudy Day (5,000 lux)

Indoor Fluorescent Lighting (500 lux)

• The above exposure time values are all for reference only. Actual required exposure times depend on lighting conditions.

Approximate Exposure Time

Level 4 Level 3 Level 2 Level 1

2 hours 21 hours 6 hours 6 hours 108 hours 30 hours

9 hours 219 hours 60 hours

103 hours ------------ ------------

Approximate Exposure Time

▲

Reference

This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.

Timekeeping

• Resetting the seconds to 00 while the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to

• With the 12-hour format, the

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also

• The year can be set in the range of 2000 to 2049. The day of the week is calculated

• The watch’s built-in full automatic calendar automatically makes allowances for

Auto Return Features

If you leave a screen with flashing digits on the display for two or three minutes without performing any operation, the watch automatically exits the setting screen.

Scrolling

The A, C, E , and L buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Power Saving Function

When turned on, the Power Saving function automatically puts the watch into a sleep state whenever it is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by the Power Saving function.

• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.

• The watch will not enter the sleep state while the Timekeeping Mode time is

• The watch will not enter the sleep state while it is in the Stopwatch Mode.

without changing the minutes.

range of noon to 11:59 p.m. and the of midnight to 11:59 a.m.

any indicator. applied in all other modes. automatically in accordance with the date you set. different month lengths and leap years. Once you set the date, there should be no

reason to change it except when battery power drops to Level 4.

Elapsed Time

in Dark

60 to 70 minutes

6 or 7 days

between 6:00 AM and 9:59 PM. If the watch is already in the sleep state when the time reaches 6:00 AM, however, it will remain in the sleep state.

(PM) indicator appears on the display for times in the

Display

Blank, with SLEEP flashing

Blank, with SLEEP not flashing

(AM) indicator appears for times in the range

Operation

Display is off, but all functions are enabled. All functions are disabled, but timekeeping

is maintained.

▲

— 5 —

Page 8

To recover from the sleep state

Perform any one of the following operations.

• Move the watch to a well-lit area. It can take up to two seconds for the display to turn on.

• Press any button.

• Angle the watch towards your face for reading.

To turn Power Saving on and off

Backlight Precautions

• The electro-luminescent panel that provides illumination loses power after very long use.

• The illumination provided by the backlight may be hard to see when viewed under direct sunlight.

• The backlight automatically turns off whenever an alarm sounds.

• The watch may emit an audible sound whenever the display is illuminated. This is

due to vibration of the EL panel used for illumination, and does not indicate malfunction.

• Frequent use of the backlight runs down the battery.

Auto light switch precautions

• Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto light switch and illumination of the display. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the display.

• Note that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the display and can run down the battery.

More than 15 degrees too high

• Static electricity or magnetic force can interfere with proper operation of the auto light switch. If the backlight does not light, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards 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 after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the backlight.

• You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.

1.In the Timekeeping Mode, hold down B until the seconds start to flash, which indicates the setting screen.

2.Press D seven times until the Power Saving on/off

screen appears.

3.Press E to toggle Power Saving on (

OFF

(

4.Press B to exit the setting screen.

• The Power Saving on indicator (SAVE) is on the display

in all modes while the Power Saving is turned on.

• The backlight may not light if the face of the watch is

more than 15 degrees above or below parallel. Make sure that the back of your hand is parallel to the ground.

• The backlight turns off after the preset display

illumination duration (see “To set the time and date”), even if you keep the watch pointed towards your face.

) and off

Time Differential Table

Pago Pago +01.0 –11.0

Cities in Zone

Honolulu, Papeete +00.0 –10.0 Anchorage, Nome –01.0 –09.0 Los Angeles, San Francisco, Las Vegas, Vancouver, Seattle/Tacoma, Dawson City Denver, El Paso, Edmonton –03.0 –07.0 Chicago, Houston, Dallas/Ft. Worth, New Orleans, Mexico City, Winnipeg New York, Montreal, Detroit, Miami, Boston, Panama City, Havana, Lima, Bogota Caracas, La Paz, Santiago, Pt. Of Spain –06.0 –04.0 Rio De Janeiro, Sao Paulo, Buenos Aires, Brasilia, Montevideo

Praia –09.0 –01.0 London, Dublin, Lisbon, Casablanca, Dakar, Abidjan –10.0 +00.0 Paris, Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg, Frankfurt, Vienna, Stockholm, Berlin Cairo, Jerusalem, Athens, Helsinki, Istanbul, Beirut, Damascus, Cape Town Jeddah, Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow Tehran, Shiraz –13.5 +03.5 Dubai, Abu Dhabi, Muscat –14.0 +04.0 Kabul –14.5 +04.5 Karachi, Male –15.0 +05.0 Delhi, Mumbai, Kolkata –15.5 +05.5 Dhaka, Colombo –16.0 +06.0 Yangon –16.5 +06.5 Bangkok, Jakarta, Phnom Penh, Hanoi, Vientiane –17.0 +07.0 Hong Kong, Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Perth, Ulaanbaatar Tokyo, Seoul, Pyongyang –19.0 +09.0 Adelaide, Darwin –19.5 +09.5 Sydney, Melbourne, Guam, Rabaul –20.0 +10.0 Noumea, Pt. Vila –21.0 +11.0 Wellington, Christchurch, Nadi, Nauru Is. –22.0 +12.0

* Based on data as of June 2003.

Difference Between

Local Time and Kona Time

–02.0 –08.0

–04.0 –06.0 –05.0 –05.0

–07.0 –03.0 –08.0 –02.0

–11.0 +01.0 –12.0 +02.0 –13.0 +03.0

–18.0 +08.0

Differential

GMT

— 6 —

Page 9

3. DRAWINGS: MODULE QW-2634 3-1. LCD DIAGRAMS

LC3

L31

L32

L33

L34

L35

LC1

LC2

COL1

L36

L37

SWIM

BIKE

RUN

L38

L39

L40

L41

L42

e12

L43

L44

a12

f12

b12

g12

c12

d12

L47

a11

f11

g11

e11

d11

b11

c11

SLEEP

L50

L51

L52

HIGH

MID

LOW

L53

L54

L55

LC4

LC5

SEG

L 1 L 2 L 3 L 4 L 5 L 6 L 7 L 8 L 9 L10 L11 L12 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L25 L26 L27 L31

f5 b5

e5 c5

f4 b4

e4 c4

L30

L29

L28

COM

LC1 LC2 LC3 LC4 LC5

X14Y2 X13Y2 X12Y2 X11Y2 X10Y2

X9Y2 X8Y2 X7Y2 X6Y2 X5Y2 X4Y2 X3Y2 X2Y2 X1Y2

X0Y2 X15Y2 X16Y2

g12

c12

g11

c11

c6 g6

X14Y1 X13Y1 X12Y1 X11Y1 X10Y1

X9Y1 X8Y1 X7Y1 X6Y1 X5Y1 X4Y1 X3Y1 X2Y1 X1Y1

X0Y1 X15Y1 X16Y1

e12 d12 e11 d11

d6 e6

X14Y0 X13Y0 X12Y0 X11Y0 X10Y0

X9Y0 X8Y0 X7Y0 X6Y0 X5Y0 X4Y0 X3Y0 X2Y0 X1Y0

X0Y0 X15Y0 X16Y0

SWIM

BIKE

RUN

NO MID

HIGH

L25

L24

X14Y4 X13Y4 X12Y4 X11Y4 X10Y4

X9Y4 X8Y4 X7Y4 X6Y4 X5Y4 X4Y4 X3Y4 X2Y4 X1Y4

X0Y4 X15Y4 X16Y4

COL1

MINSEC

f3 b3

COL3

e3 c3

COL0

SPLITLAP SAVERECOV

PM1

AM1

a10

h10

f10

g10

e10

i10

d10

MIN1

b10

HYP1

c10

COL2

X16

L23

L22

L21

L20

L17

L16

L15

L14

L13

L12

L11

L10

L 9

COM

X14Y3 X13Y3 X12Y3 X11Y3 X10Y3

X9Y3 X8Y3 X7Y3 X6Y3 X5Y3 X4Y3 X3Y3 X2Y3 X1Y3

X0Y3 X15Y3 X16Y3

SEG

L32 L33 L34 L35 L36 L37 L38 L39 L40 L41 L42 L43 L44 L45 L46 L47 L48

LC1 LC2 LC3 LC4 LC5

b5 e4 g4

e3 g3

f0 g0 g1 e1 g2 e2

L49

COM

f7 g7 b9

b10 g10

L30

SLEEP

LOW

a12 a11

f12

b12

f11

b11

L50 L51 L52 L53 L54 L55

SEG

L28 L29

MIN0

f8a8b8

L 8

L 7

COL3

f3 b3 a0 b0 b1

f1 b2

f2 e8

e7 c7 g9 e9

c10 e10

ALM

SIG

AUTOEL

L 6

L 5

L 4

MINSEC

L 3

L 2

L 1

c5 d4

LAP

COL0

SIG

AUTOEL

ALM

MIN0

a2 d8

SPLIT

MIN1

d3 c3 e0 c0 c1 d1 c2 d2 a8

d10

i10

RECOV

SAVE

HYP1

PM1 AM1

h10

a7 b7

COL2

a10

f10

— 7 —

Page 10

3-2. CIRCUIT DIAGRAM

LCD (2.8V 1/3b 1/5d)

AC T1 T2 T3 T4

KI1

KI2

KI3

KI4

KI5

KI6

KI7 KI8

✽5 ✽7 ✽7 ✽4 ✽4 ✽4

Xtal

✽3

KI9

✽3

✽3 ✽3

R3 XTB

XT LD1

L1 - - - - L55 LC1 - - - LC5 SDO SCK CSBSDI

✽8

LSI

TOTAL 106PINS

BONDING 101PINS

GND VDD2 VCH VDD3 VC1 VC2VDD1BD VDSPVC3 VC4 VHFVSC

BAT

Di2

Tr1

LL1

Di1

✽1✽1 ✽1✽1

SCR SCIN

VPM✽1

KC1 KC2

✽9

KC3

✽10

KC4

C2C5 C1C4C6

RP1RP2

✽2 ✽2 ✽2

GNDB

GND

BACK

✽6

FRONT

LL2

L– VOUT

L+

CLF2 CLF1

V+

INV

✽ 1. No bonding

Cel

✽ 2. Soldering pads (for switching modules) are not used in this module, and are all open.

✽ 3. Latch type key ✽ 4. Short (Soldering) (R trimming) ✽ 5. Inclination sensor ✽ 6. GNDB is used for the bias on the back of the tip. ✽ 7. Short (Soldering) (N trimming) ✽ 8. L28~L30 are used as the static drive pins. ✽ 9. KC2 is used in this module. ✽ 10. KC3 is used in this module.

— 8 —

Page 11

3-3. CHECKING TERMINALS AND COMPONENTS

Capacitor/Chip

Resistor/Chip

RP1

Capacitor/Chip

Cel

LL2

Coil

INV

13. Sensor/Tilt (7105 5275)

Inverter

Resistor/Chip

RP2

KI7

GND

VSC

VOUT

KI8

KC4 KC3

GND GND GND

GND GND

GND KI9

KI8 KI8

KC2

R3 R2 R1

N2 N1

3. PCB ASS'Y (7640 7246)

KI5

KI1

KI4

GND

KI6

KI3

KI2

KI6

GND

GND VDD3

KI3

KI2

GND VCH

VC3 VC4

VC2

XTB

VC1

VDSP

VHF

VDD1GND

GND

VDD2GND

GND

VCH

VC1

VDSP

VDD2

KI7

CLF1

VSC

VDD2

VDD2 CLF1 CLF2 LD1

CLF2

L–

GND

BD1 GND

VDD2

KI5

L+ VOUT L– GND

VOUT

L+

KI1

KI8

GND

SCIN

KI9

LD1

VSC

GNDB

KI1

SCR

GND

SCIN

KI4

VDD2

GND

VSC

KI4

GND

Top view of P.C.B. Ass'y Bottom view of P.C.B. Ass'y

Capacitor/Chip

Xtal

Oscillator/Crystal

(7110 6323)

4. Capacitor/Trimmer (1009 7666)

— 9 —

Diode

Di2

Resistor/Chip

Varistor

Tr1

Resistor/Chip

Coil

LL1 Transistor

Di1

Diode

Page 12

4. EXPLODED VIEW: MODULE QW-2634

Casing parts: Spacer

8 (7218 0438)

11 (1008 2135)

2 (1008 9590)

16 (1008 2133)

Dial ass'y with solar cell

Casing parts:

15 (1008 2132)

1 (1013 1512)

11 (1008 2135)

17 (7230 0616)

18 (1008 2134)

3 (7640 7246) PCB Ass'y

19 (7230 0644)

9 (1008 3364)

6 (1006 5657) (CTL1616)

7 (7231 1913)

10 (1008 2102)

14 (1009 9862)

12 (1006 5664)

20 (1008 4578)

— 10 —

Page 13

5. PARTS LIST: MODULE QW-2634

(-)

Note: 1. Prices and specifications are subject to change without prior notice.

2. Spare parts are classified as follows according to their importance in after-sales service. A Rank ---------------------------------------- Very Important B Rank ---------------------------------------- Important C Rank ---------------------------------------

3. Batteries in Bulk pack on the tray will be supplied from our Overseas Spare Parts Section under charge basi

Batteries in Blister pack will be supplied from our Sales Department.

4. As for order/supply of spare parts, refer to the separate publication "GUIDE BOOK for spare parts supply".

Item Code No. Parts Name Specification Applicable Q R

MODULE/WITHOUT MOVEMENT QW-2634AT-01 STR-600-2V < The module QW-2634 is "built-in t the case, therefore the module as the s

Less important

e" which is assembled directly to

are parts is not available. >

1 1013 1512 LCD C2634-01P 2 1008 9590 EL YEL-2534-A-00 3 7640 7246 PCB ASS'Y RJQ516079*001V01TK 4 1009 7666 CAPACITOR/TRIMMER CTZ2E-25C-W2-P 5 7110 6323 OSCILLATOR/CRYSTAL DT-26S11 6 1006 5657 BATTERY/STORAGE CTL1616 7 7231 1913 CONTACT/BATTERY 8 7218 0438 CUSHION/524 Q411459-1

9 1008 3364 HOLDER/BATTERY Q254197A-2 10 1008 2102 HOUSING 2534-2 Q152370-1 11 1008 2135 INTERCONNECTOR Q469546-1 12 1006 5664 LABEL 2368 Q468543A-1 13 7105 5275 SENSOR/TILT TS-2418-P 14 1009 9862 SHEET/INSULATION Q470524-1 15 1008 2132 SPACER 2534-1 16 1008 2133 SPACER 2534-2 Q152369A-1 17 7230 0616 SPRING/COIL 1199-1 Q437728B-1 18 1008 2134 SPRING/COIL 2534-1 Q469421-1 19 7230 0644 SPRING/COIL 785-1 Q439335-1 20 1008 4578 SUPPORTER/PCB ASS'Y Q152367-2

For the

rices and minimum order/supply quantities of the above parts, refer to the Parts Price List P.P.L.-603.

Q359948B-2

Q152368-1 QW-2634AT-01

QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01

QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01 QW-2634AT-01

1A 1A 1A 1B 1B 1B 1C 1C 1C 1C 2C 1C 1B 1C 1C 1C 2B 2B 1B 1C

Notes: Q - Used quantity

R - Rank

— 11 —

Page 14

6. PRECAUTIONS FOR REPAIR: MODULE QW-2634 6-1. AC (ALL CLEAR) AND REMOVING OF MODULE

1. Perform AC (ALL CLEAR) when inserting a new battery, or else the memories and/or counters may

give erratic displays. Touch the AC contact and the positive (+) side of the battery or main plate with the metallic tweezers. The contact should be made for about two seconds. For 2 seconds after the AC operation, do not make any button operations on these modules.

2. On removing of the module from the case, please insert the precision screw driver between the module

and the case pointed by arrows.

Metallic tweezers

6-2. ACCURACY CHECKING

Check the accuracy of the module with the quartz timer after switching the module to “ACCURACY CHECKING MODE”.

The operations are shown below: A) SWITCHING TO “ACCURACY CHECKING MODE”

While pressing B button, press E and D at the normal timekeeping mode. Then all the segments are displayed and the LCD drive signals are changed to the static drive signal

of “32 kHz” so that you can check the accuracy with the quartz timer.

B) CANCELLATION OF THE “ACCURACY

CHECKING MODE” Press any button except for E button.

Then the display is reurned to its original state.

NOTE: The “ACCURACY CHECKING MODE” will

automatically return to the regular mode in 1 ~ 2 hour(s) without any operation.

— 12 —

QW-2634

Page 15

6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING

Check a Solar cell and PCB ass'y are contacted correctly by contact spring, when a module is disassembled.

1. To enter TEST mode.

1) While pressing E button, press A and B buttons at the normal timekeeping mode.

2. Check a Solar cell and PCB ass'y contact in the following order.

1) Display side up and place the watch on the desk.

2) Check the display indicates as figure 2.

3) Display side down and place the watch on the desk more than two seconds. Or go to a dark room and place the watch more than two seconds.

4) Check the display indicates as figure 3. If "8888" is not appeared on the display, disassemble again the module and check the contact spring between the Solar cell and PCB.

Press E, A and B buttons

Figure 1

Appear "8888" on display.

3. To exit from TEST mode Press any button.

6-4. HOW TO CHECK TILT SENSOR

1) Press E, B and L buttons at the normal timekeeping mode.

2) Check the display indicates as figure 4.

3) Tilt the watch towards you more than 40 degrees.

4) Check the display indicates as figure 5.

Figure 2

Place the watch in a dark room more than two seconds.

Figure 3

Appear "TLT" on display.

Figure 4 Figure 5

Appear "8888" on display.

Tilt the watch towards you more than 40°

More than 40°

— 13 —

Page 16

CASIO TECHNO CO.,LTD.

Overseas Service Division

Shibuya-ku, Tokyo 151-8543, Japan

6-2, Hon-machi 1-Chome