Casio G-SHOCK GW-1501B, G-SHOCK GW-1501S Service Manual & Parts List

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SERVICE MANUAL

& PARTS LIST

REF. NO. S/M-880

FEB. 2005

MODULE NO.

QW-3765

GW-1501B GW-1501S

Ver.1 : May. 2006

(WITHOUT PRICE)

CONTENTS

Page

1. SPECIFICATIONS: MODULE QW-3765 .................................................... 1

2. OPERATION CHART: MODULE QW-3765 ............................................... 2

3. DRAWINGS: MODULE QW-3765

3-1. LCD DIAGRAM ............................................................................................. 6

3-2. CIRCUIT DIAGRAM ...................................................................................... 7

3-3. CHECKING TERMINALS AND COMPONENTS .......................................... 8

4. EXPLODED VIEW: MODULE QW-3765 .................................................... 9

5. PARTS LIST: MODULE QW-3765 ............................................................ 10

6. PRECAUTIONS FOR REPAIR: MODULE QW-3765

6-1. AC (ALL CLEAR) AND REMOVING OF MODULE .....................................11

6-2. ACCURACY CHECKING ............................................................................. 11

6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING....................................12

6-4. HOW TO CHECK TILT SENSOR................................................................. 12

1. SPECIFICATIONS: MODULE QW-3765

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 (from full charged condition) Current consumption 0.5 µA maximum Alarm system Piezo plate on Cover/Back Accuracy ±15 sec./month Accuracy setting system Trimmer capacitor Accuracy checking See page 11 Functions • Shock resistant (G-SHOCK)

• Super Illuminator Full auto LED light

• Solar powered

• World time 29 time zones (30 cities), city code display, daylight saving on/off

• 1/100-second stopwatch Measuring capacity: 59'59.99" Measuring modes: Elapsed time, split time, 1st-2nd place times

• Daily 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 2099)

• 12/24-hour format

• Regular timekeeping Analog: 2 hands (hour, minutes (hand moves every 20 seconds)) Digital: Hour, minutes, seconds, pm, month, date, day

— 1 —

2. OPERATION CHART: MODULE QW-3765

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

• 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, press B to illuminate the face of the watch.

• The Battery Level Screen shows the current battery level. See “Battery Power

Levels” for more information.

Timekeeping Mode

The electricity generated by the solar cell of the watch is

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

Rechargeable batter

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 significantly reduced.

Bright Light

LEVEL 1 LEVEL 2 LEVEL 3

Electrical energy

All functions enabled

Press C

charge

Battery Level Screen

▲

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 quickly run down the battery 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” for more information.

About This Manual

Hour hand

Minute hand

Digital display

World Time Mode

NYC

▲

Hand Setting Mode

• Button operations are indicated using the letters shown in the illustration.

• Most of the display examples in this manual show only the digital display , without the analog hands.

• 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.

Alarm Mode

▲

Stopwatc

h Mode

▲

STW

▲

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

• In the Timekeeping Mode, press A to cycle through the digital time screens as shown below.

Time

▲

Hour

Minutes

Time )

) and

SecondsDay of the W

PM indicator

▲

Hour : Minutes

Seconds

Do this:

Press D (east).

Press D

eek

Press A.

Setting the Digital Time and Date

This watch is preset with a number of city codes, each of which represents the time zone where that city is located. When setting the digital time, it is important that you select the correct city code for your Home City (the city where you normally use the watch). If your location is not included in the preset city codes, select the preset city code that is in the same time zone as your location.

• Note that all of the times for the World Time Mode city codes are displayed in accordance with the digital time and date settings you configure in the Timekeeping Mode.

To set the digital time and date

3. Press C to move the flashing in the sequence shown below to select other settings.

City Code

Power Saving

4. When the setting you want to change is flashing, use D to change it as described

below.

• The following steps e xplain how to configure timekeeping settings only

Screen To do this:

Change the city code T oggle between Da ylight Saving

(

) and Standard Time (

Toggle between 12-hour (

24H

24-hour (

Date

▲

Month. Day

▲

1. In the Timekeeping Mode, hold down A until the city code starts to flash, which indicates the setting screen.

2.Press D to select the city code you want.

• Make sure you select your Home City code before

changing any other setting.

• See “City Code Table” for a complete list of available

city codes.

DST

Day

12/24-Hour For

) timekeeping

mat

Month Year

OFF

12H

Screen To do this:

5. Press A to exit the setting screen.

• When you exit the setting screen, the analog hands are adjusted automatically to match the digital time. See “Analog Timek eeping” for more information.

• See “Daylight Saving Time (DST)” for details about the DST setting.

• For information about specifying how long the face of the watch remains illuminated,

see “To specify the illumination duration”.

• For details about configuring settings for the Power Saving feature, see “Power Sa

ving”.

Daylight Saving Time (DST)

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.

To toggle the Timekeeping Mode digital time between DST and Standard Time

Analog Timekeeping

The analog time of this watch is synchronized with the digital time. The analog time setting is adjusted automatically whenever you change the digital time.

Note

• The hands for the analog timepiece move to adjust to a new setting whenever any of the following occurs.

When you change the digital time setting When you change the Home City code and/or DST setting

• If the analog time does not match the digital time for some reason, use the procedure below to adjust the analog time to the digital time.

• Whenever you need to adjust both the digital and the analog time settings manually, make sure you adjust the digital setting first.

• Depending on how much the hands have to move in order to adjust to the digital time, it may take some time before the y stop moving.

Reset the seconds to

Change the hour or minutes

Change the year

Change the month or da

1.In the Timekeeping Mode, hold down A until the city

2. Press C once and the DST setting screen appears.

3. Press D to toggle between Daylight Saving Time (

4. Press A to exit the setting screen.

• The DST indicator appears on the display to indicate

code starts to flash, which indicates the setting screen.

displayed) and Standard Time (

that Daylight Saving Time is turned on.

Do this:

Press D.

Press D

(to increase).

displayed).

OFF

— 2 —

To adjust the analog time

• If you need to advance the analog time setting a long way, hold down D until the time starts advancing at high speed, and then press B. This locks the high-speed hand movement, so you can release the two buttons. High-speed hand movement continues until you press any button. It will also stop automatically after the time advances 12 hours or if an alarm starts to sound.

4. Press A to exit the setting screen.

• The minute hand will be adjusted slightly to match the seconds when you exit the setting screen.

• To return to the Timekeeping Mode, press C.

1. In the Timekeeping Mode, press C five times to enter the Hand Setting Mode.

2. Hold down A until the current digital time starts to flash, which indicates the analog time setting screen.

3. Press D to advance the analog time setting by 20

seconds.

• Holding down D advances the analog time setting at

high speed.

World Time

City code

NYC

Current time in the zone of the selected city code

To view the time in another city

In the World Time Mode, press D to scroll eastwardly through city codes (time zones).

• The city code is displayed for about two seconds, and then it is replaced with the current time for that city code. Pressing A while the time is displayed in the World Time Mode causes the city code of the currently selected zone to appear.

• When the currently selected time zone is one that includes mostly ocean, a value indicating the zone’s Greenwich Mean Time differential appears in place of a city code.

• If the current time shown for a city is wrong, check your Home City time settings and make the necessary changes.

To toggle a city code time between Standard Time and Daylight Saving Time

DST indicator

• You cannot toggle between Daylight Saving Time and Standard Time if the displayed city code is

GMT

Timekeeping Mode. To change the DST setting of your Home City, use the procedure under “To toggle the Timekeeping Mode digital time between DST and Standard Time”.

• Note that the DST/Standard Time setting affects only the currently displayed city code. Other city codes are not affected.

World Time digitally displays the current time in 30 cities (29 time zones) around the world.

• For full information on city codes, see the “City Code Tab le”.

• All of the operations in this section are performed in the World Time Mode, which you enter by pressing C.

1. In the World Time Mode, use D to display the city

code (time zone) whose Standard Time/Daylight Saving Time setting you want to change.

2.Hold down A to toggle between Daylight Saving Time

(DST indicator displayed) and Standard Time (DST indicator not displayed).

• The DST indicator appears on the display whenever you display a city code for which Daylight Saving Time is turned on.

or the city code that is currently selected as the Home City in the

Alarm

On/Off status

Hourly Time Signal Screen

2 seconds

Alarm Screen

▲

Press D.

▲

To set the alarm time

Alarm time (Hour : Minutes)

Alarm Operation

The alarm sounds at the preset time for about 10 seconds, regardless of the mode the watch is in.

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

• Alarm and Hourly Time Signal operations are performed in accordance with the

Timekeeping Mode digital time.

When the alarm is turned on, the alarm 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.

• When the alarm is turned on, the alarm screen alternates between alarm time (hour and minutes). When the alarm is off,

(alarm off) remains on the alarm screen.

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

• Pressing D in the Alarm Mode toggles between the alarm screen and Hourly Time Signal screen.

1.In the Alarm Mode, press D to display the alarm

screen.

2.Hold down A 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 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 on) and the current

To test the alarm

In the Alarm Mode, hold down D to sound the alarm.

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

Alarm on indicator

Hourly time signal on indicator

On/Off status

1.In the Alarm Mode, press D to select the alarm or the Hourly Time Signal screen.

2.Press A to toggle the currently selected function on (

displayed) and off (OF displayed).

• The alarm on indicator and the Hourly Time Signal on

indicator remain on the display in all modes while these functions are turned on.

Stopwatch

The stopwatch lets you measure elapsed time, split times,

STW

Minutes Seconds

and two finishes.

• The display range of the stopwatch is 59 minutes, 59.99

seconds.

• The stopwatch continues to run, restarting from zero

after it reaches its limit, until you stop it.

• Exiting the Stopwatch Mode while a split time is frozen

on the display clears the split time and returns to elapsed time measurement.

• The elapsed time measurement operation continues

even if you exit the Stopw atch Mode.

• All of the operations in this section are performed in the

Stopwatch Mode, which you enter by pressing C.

To measure times with the stopwatch

Elapsed Time

Start Stop

1 When elapsed time measurement is stopped, the display alternates between a

minute and seconds screen, and a 1/100 second screen at 2-second intervals.

Split Time

Start Split

2 Split times are displayed by cycling through the split indicator (

a minute and seconds screen, and a 1/100 second screen.

Two Finishes

Start Split

3 When a split time operation is stopped, the display cycles through the same values

as those described in *2 above. In this case, however, the minute symbol ( the seconds symbol (

➤

First runner finishes. Display time of first runner.

) do not flash.

➤

Re-start Clear

➤

Split release

➤

Split stop

Second runner finishes.

➤

Stop

1/100 secondMinutes and Seconds

➤

Stop

SPL

➤

Split release

Display time of second runner

➤

Clear

➤

Clear

) and

Illumination

Two LEDs (light-emitting diodes) illuminate the face of the watch for easy reading in the dark. The watch’s auto light switch automatically illuminates the face 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 3 seconds as the

illumination duration.

Auto light switch on indicator

To illuminate the face of the watch manually

In any mode (except when a setting screen is on the display), press B to illuminate the face of the watch.

• The above operation turns on illumination regardless of the current auto light switch setting.

About the Auto Light Switch

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

Moving the watch to a position that is parallel to the ground and then tilting it towards you at more than 40 degrees causes illumination to turn on.

• Wear the watch on the outside of your wrist.

• See “Illumination Precautions” for other important

information.

Parallel to ground

More than 40°

— 3 —

Warning!

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

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 startle 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 any mode (except when a setting screen is on the display), hold down B for about two seconds to toggle the auto light s displayed).

• The auto light s light switch is turned on.

• The auto light switch turns off automatically whenever battery power drops to Level

• The auto light switch is disabled, regardless of its on/off setting, when the Hand Setting Mode’s setting screen.

witch on indicator ( ) is on the display in all modes while the auto

To specify the illumination duration

witch on ( displayed) and off ( not

1. In the Timekeeping Mode, hold down A until the city code starts to flash, which indicates the setting screen.

2. Press C three times to move the flashing to the seconds setting.

3. Press B to toggle the illumination duration setting

een 3 seconds ( ) and 1.5 seconds ( ).

betw

4. Press A to exit the setting screen.

Power Supply

This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below 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.

• 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 significantly reduced.

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. Make sure that the watch is normally exposed to bright light whenever possible.

• This watch uses a special rechargeable battery to store power produced by the solar cell, so regular battery replacement is not required. However, after very long use, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the special rechargeable battery to fully charge, contact your dealer or CASIO distributor about having it replaced.

•

Never try to remove or replace the watch’s special battery yourself. Use of the wrong type of battery can damage the watch.

• The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 4 and when you hav e 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 Levels

The digital display show you the current level of the rechargeable battery’s power.

• All of the watch’s functions are availab indicated on the Battery Level Screen.

vel

le when (high) or (medium) is

Digital Displa

(Charge

soon alert)

Charge indicator

• Level 1 and Level 2 are indicated on the Battery Level Screen only. Level 3 and Level 4 are indicated in all modes.

• 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.

• When the battery level approaches Level 3, the analog hands move automatically to the 12 o’clock position. Charge the battery as soon as possible when this happens. All of the digital screen indicators flash while the analog hands are in motion.

• 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 digital 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.

• If the analog time and digital time do not match after the watch recovers to Level 2

from Level 3 or Level 4, adjust the analog hand setting so it matches the digital time.

• Leaving the watch exposed to direct sunlight or some other very strong light source can cause the digital display to show a reading temporarily that is higher than the actual battery level. The correct battery level should be indicated after a few minutes.

Solar cell

Function Status

All functions enab

All functions enabled. Except for internal

timekeeping and the charge indicator, all functions and display indicators are disabled.

All functions disab

led.

Recover Indicator

Recover indicator

• If the battery drops to Level 3 while the recover indicator is on the display, the

• If the recover indicator appears frequently, it probably means that remaining battery

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 15 months.

• The following table shows the amount of time the watch needs to be exposed to light

el Screen will indicate . Charge the battery as soon as possible.

Battery Lev power is low. Leave the watch in bright light to allow it to charge .

each day in order to generate enough power for normal daily operations

Exposure Le

vel (Brightness)

Outdoor sunlight (50,000 lux) Sunlight through a window (10,000 lux) Daylight through a window on a cloudy da

lux) Indoor fluorescent lighting (500 lux)

• 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 light 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 windo

(10,000 lux) Daylight through a windo

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

If you use illumination or alarms a number of times during a short period, the recover indicator (R) appears on the display and the following operations become disabled until battery power recovers.

Illumination; Beeper tone; Coordination between digital and analog timekeeping

After some time, battery power will recover and the recover indicator will disappear, indicating that the above functions are enabled again.

Approximate Exposure

utes

7 min

Time

24 minutes

y (5,000

39 min

utes

7 hours

Approximate Exposure Time

Level 4 Level 3 Level 2 Lev

▲

w on

3 hours 9 hours

14 hours

169 hours

▲

54 hours

203 hours

328 hours

▲

15 hours 56 hours

90 hours

– – –

el 1

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.

Power Saving

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

• There are actually two sleep state levels: “display sleep” and

Elapsed Time in Dark

60 to 70 min

(Display Sleep)

6 or 7 days

(Function Sleep)

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

• The watch will not enter the sleep state while the digital time is between 6:00 AM

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

• The analog hands move to the 12 o’clock position when the watch enters the function sleep state. If the analog time and digital time do not match after the watch recovers from the function sleep state, adjust the analog hand setting so it matches the digital time.

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

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 f or reading.

Digital display off, but all functions are enab

utes

power saving on indicator flashes on the display

• Digital display off, but the power saving on indicator flashes on the display

• All functions, including analog timekeeping, disabled

• Internal timek

Operation

eeping maintained

“function sleep”.

led and the

▲

— 4 —

To turn Power Saving on and off

Power saving on indicator

Auto Return Features

• The watch automatically returns to the Timekeeping Mode if you do not perform any button operation for two or three minutes while the Battery Level Screen is displayed, or while in the Alarm, or Hand Setting Mode.

• 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 B and D 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.

Initial Screens

When you enter the Timekeeping, World Time, or Alarm Mode, the data you were viewing when you last exited the mode appears first.

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

without changing the minutes.

• The year can be set in the range of 2000 to 2099. The day of the week is calculated automatically in accordance with the date.

• The watch’s built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch’s battery replaced or when battery power drops to Level 4.

• The current time for all city codes in the Timekeeping Mode and World Time Mode is calculated in accordance with the Greenwich Mean Time (GMT) differential for each city, based on y our Home City time setting.

• GMT differential is calculated by this watch based on Universal Time Coordinated (UTC

) data.

UTC is the world-wide scientific standard of timekeeping. It is based upon carefully

maintained atomic (cesium) clocks that keep time accurately to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s rotation. The reference point for UTC is Greenwich, England.

12-hour/24-hour Timekeeping Formats

The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also applied in all other modes.

• With the 12-hour format, the P (PM) indicator appears on the display for times in the range of noon to 11:59 p.m. and no indicator appears for times in the range of midnight to 11:59 a.m.

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

Illumination Precautions

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

• Illumination automatically turns off whenever an alarm sounds.

• Frequent use of illumination shortens the battery operating time.

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 face of the watch. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the face.

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

More than 15 degrees too high

1. In the Timekeeping Mode, hold down A until the city code starts to flash, which indicates the setting screen.

2. Press C nine times until the Power Saving on/off screen appears.

3. Press D to toggle Power Saving on ( ) and off ().

4. Press A to exit the setting screen.

• The Power Saving on indicator is on the display in all

modes while Power Saving is turned on.

• Illumination may not turn on 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.

• Illumination turns off after the preset illumination

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

• Static electricity or magnetic force can interfere with

proper operation of the auto light switch. If illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards your face 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, illumination may not turn on

until about one second after you turn the face of the watch towards you. This does not necessarily indicate malfunction of the auto light switch.

• 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.

City Code Table

City

–11 HNL ANC

LAX DEN

CHI NYC

CCS

RIO

–02

–01

GMT LON PAR BER ATH

CAI JRS JED THR DXB KBL

KHI DEL DAC RGN BKK

HKG SEL

TY ADL SYD NOU

City

Honolulu

Anchorage

Los Angeles

Denver

Chicago

New Y o

Car

Rio De J

London

Paris

Ber

Athens

Cairo usalem

Jer

Jeddah Tehran

Dubai Kab

Karachi

Delhi Dhaka Yangon

Bangkok

Hong K

Seoul

Tok y

Adelaide

Sydne

Noumea

Wellington

Code

WLG

• Based on data as of June 2004.

acas

aneiro

lin

ong

GMT

Differential

–11.0 –10.0 –09.0

–08.0 –07.0 –06.0

–05.0 –04.0

–03.0 –02.0 –01.0

+00.0 +01.0

+02.0 +03.0

+03.5 +04.0 +04.5 +05.0 +05.5 +06.0 +06.5 +07.0

+08.0 +09.0

+09.5 +10.0 +11.0 +12.0

Other major cities in same time zone

Pago Pago

apeete

P Nome San Francisco, Las Vegas, Vancouver Seattle/Tacoma, Da El Paso, Edmonton Houston, Dallas/Fort Worth, New Orleans, Mexico City, Winnipeg Montreal, Detroit, Miami, Boston, Panama City, Hav La Paz, Santiago, Por Sao Paulo, Buenos Aires, Brasilia, Monte

Praia Dublin, Lisbon, Casablanca, Dakar

Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,

Frankfurt, Vienna, Stoc Helsinki, Istanbul, Beirut, Damascus, Cape To

Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Mosco Shiraz

u Dhabi, Muscat

Ab Male

Mumbai, K Colombo

Jakarta, Phnom Penh, Hanoi, Vientiane Singapore, Kuala Lumpur, Beijing, Taipei, Manila, Per Ulaanbaatar Pyongy

Darwin Melbourne Port Vila Christchurch, Nadi, Nauru Island

olkata

ang

, Guam, Rabaul

wson City

ana, Lima, Bogota

t Of Spain

kholm

video

, Abidjan

th,

— 5 —

3. DRAWINGS: MODULE QW-3765 3-1. LCD DIAGRAM

SIGALM

DST1PM

SEG.

L 6 L 7 L 8 L 9

L10 L11 L12 L13 L14 L15 L16 L17 L18

CHARGE

SAVE

L26

L25

L24

COM.

L28

L29

L30

L27

LC1 LC2 LC3 LC4 LC5 LC1 LC2 LC3 LC4 LC5

L21

L22

L23

X8Y4 X8Y3 X8Y2 X8Y1 X8Y0

X9Y4 X9Y3 X9Y2 X9Y1 X9Y0 X10Y4 X10Y3 X10Y2 X10Y1 X10Y0 X11Y4 X11Y3 X11Y2 X11Y1 X11Y0 X16Y4 X16Y3 X16Y2 X16Y1 X16Y0 X15Y4 X15Y3 X15Y2 X15Y1 X15Y0 X14Y4 X14Y3 X14Y2 X14Y1 X14Y0 X13Y4 X13Y3 X13Y2 X13Y1 X13Y0 X12Y4 X12Y3 X12Y2 X12Y1 X12Y0

RECOVER

A.LIGHT X4Y4 X4Y3 X4Y2 X4Y1 X4Y0 X3Y4 X3Y3 X3Y2 X3Y1 X3Y0 X2Y4 X2Y3 X2Y2 X2Y1 X2Y0

L20

A.LIGHT

L18

L19

L17

RECOVER

L15

L16

SEG.

L19 L20 L21 L22 L23 L24 L25 L26 L27

SEG.

L28 L29

W4W5

X16

L14

COM.

L 7

L 6

LC1

LC2

L 9

L 8

L10

L11

L12

L13

X1Y4 X1Y3 X1Y2 X1Y1 X1Y0 X0Y4 X0Y3 X0Y2 X0Y1 X0Y0 X5Y4 X5Y3 X5Y2 X5Y1 X5Y0 X6Y4 X6Y3 X6Y2 X6Y1 X6Y0 X7Y4 X7Y3 X7Y2 X7Y1 X7Y0 DST1 w8 w6 w5 PM

w9 w7 w4 w0 SIG w1 w2 w3 ALM

COM.

L30

CHARGE

SAVE

LC3

LC4

LC5

— 6 —

3-2. CIRCUIT DIAGRAM

✽13

Crh1

Crh2

Crh3

Crl1

Crl2

ANT

✽19

RP1RP2

Crl3

P3-2 Hold P14

Asel Pon

GND4

TCO

P12

FET-D

Rpd

Rxt2

Ccp

Rcp

GND1

FET-S

Xtal2

✽13✽12

Xtal3 Cxt

GND5

P3-1 P4 P5

GND3 GND2

Rxt3

✽13

Cbat

Rbat

✽ 11. LD3 (Normal High) is used in this module.

✽ 12. Cxt is not mounted in the specification for dual translmitters.

✽ 13. Cc, Crl1, Crl2, Crl3,Rxt3 and Xtal3 are not mounted in the specification

for single transmitter.

✽ 14. Rpd is not mounted in the specification which includes signal reception.

✽ 15. Short here with a soldering short pad when three LEDs are mounted.

✽ 16. Mount Tr2 only when one LED is mounted.

✽ 17. Short here with a soldering short pad only when one LED is mounted.

✽ 18. Inclination sensor

✽ 19. No parts except Rdp are mounted within the area of the dotted

line in modules without signal reception function.

✽14

VCC

P13

ISB

✽13

SCR

SCIN

SDO SCK CSB

✽1 ✽1 ✽1 ✽1

SDI

✽1

L32 - - L36

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

L3 - L5, L31,L37 - - - L55

L6 - - - L30 LC1 - - - LC5

An.B1

L1 L2

✽8 ✽8 ✽7

T1T2T3

KI1

KC1

KC3

✽9

LD1

VC1 VC2

VDD3 VDD1 VDSP

VCH VHF

VC3 VC4

GND VDD2

VSC

Di2

C2C5 C1 C4

LL1

Tr1

PZ Z

✽ 1. No bonding

✽ 2. GND-Kl5: Open (No Soldering)

GND-Kl6: Short (Soldering)

GND-Kl7: Short (Soldering)

✽ 3. Latch type key

✽ 4. Short (Soldering) (R trimming)

✽ 5. Short (Soldering) (N trimming)

✽ 6. GNDB is used for the bias on the back of the tip.

✽ 7. L28~L30 are used as the static drive pins.

✽ 8. Motor drive pins (01 and 02) are used in this module.

✽ 9. Normal Low

✽ 10. LD2 (Normal Low) is used in this module.

Di1

BAT

Tr2

✽17

OP2

✽15

OP1

LED2R1

LED3R1

✽16

LED1

GNDB

LL2

COILB

(N.C.)A

VOUT0

LED

2(N.C.)

1LEDOUT

✽6

Cld1

VDD8

(N.C.)9

DRIVER

5ENABLE

4(N.C.)

3GND

CE27

Cld2

6CE1

✽11

XTB

✽4

Xtal

VPM

KC2

✽10

LSI

TOTAL 106PINS

BONDING 79PINS

✽3

KI7

KI8

KI9

✽18

✽3✽3✽3✽3✽3

✽5

✽5✽4✽4

✽3

KI2

KI3

KI4

KI5

KI6

✽2

KC4

— 7 —

3-3. CHECKING TERMINALS AND COMPONENTS

GND

SCR

L29

COIL GND

VOUT

GND

VDD2

GND VOUT

CE2CE1

X3 X2P5

L27

L28

COIL

VOUT

P4P5P7

VDD2

16. PCB ASS'Y (7640 8453)

L19

L20

L21

L22

L23

L24

L25

L26

L13

L14

L15

L16

L17

L18

KI1

VOUT

LED1

KI4

VOUT

VDD2 OP

VDD2

VSC

LEDOUT

GND GND GND

LD1 CE1 CE2

LEDOUT

LED1

GND

VSC

GND

LD1

LEDOUT

LED3

SCIN GND

SCIN

L30

SENSOR/TILT

LED2

LEDOUT

KI8

GND

VDD3

VC4

VC3

(7105 5275)

CUSHION 506

L 9

L 8

L10

L11

L12

LC4

LC2

L 7

LC5

LC3

L 6

LC1

KI3

LED2

VOUT

KI2

GND

(7211 9631)

KI3

KI2

OSCILLATOR/CRYSTAL (7110 6336)

CUSHION 466-A (7211 9576)

GND

VDD2

VDSP

VC1

VDSP

GND

KI3

GND

VCH

VDD1 GND

VHF

KI2

XTB

GND

KI8

FET-D

VC2VC1

KI7

KI6

KI5

GND

FET-S

GND

GNDB

VDD2

P13

P14P12

VCC

GND

LL1

TR1BD

TR1

VDD2

TR1

KI9

VCC

VDD2

GND

KI1

GND

KI1

Ccp

GND

KI4

VSC

KI4

Short pad for R trimming

LL1

CUSHION 506 (7211 9631)

Short pad for N trimming

TAPE/ADHESIVE (1000 6652)

CAPACITOR/TRIMMER (1009 7666)

Short pad for switching modules

— 8 —

4. EXPLODED VIEW: MODULE QW-3765

9 (1015 5782)

8 (1001 4042) Casing parts: DIAL

SPACER

11 (1015 5789) 25 (7224 0652) 26 (1015 5787)

17 (7228 0511)

22 (1005 3572) 21 (7230 1025)

8 (1001 4042) 12 (1015 5784)

8 (1001 4042)

Casing parts: SOLAR CELL

18 (1012 3230)

1 (7640 7573) 4 (1013 0977)

17 (7228 0511)

22 (1005 3572)

8 (1001 4042)

14 (1015 7977)

16 (7640 8453) PCB Ass'y

5 (1001 6598) 20 (7201 9249)

2 (1006 5657) Battery storage (CTL1616)

13 (1006 5664)

18 (1012 3230)

10 (1001 6591)

23 (1015 5788)

— 9 —

5. PARTS LIST: MODULE QW-3765

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".

Less important

Item Code No. Parts Name S

7640 8443 MODULE/WITH MOVEMENT QW-3765AT-01TK GW-1501B-1AV 1 A

7640 7573 ANALOG BLOCK QW-3329MV-82TK QW-3765AT-01TK 1 A

1006 5657 BATTERY/STORAGE CTL1616 QW-3765AT-01TK 1 B

1009 7666 CAPACITOR/TRIMMER CTZ2E-25C-W2-P QW-3765AT-01TK 1 B

1013 0977 COIL ASS'Y RJQ513694*001V01 QW-3765AT-01TK 1 A

1001 6598 CONTACT/BATTERY(-) 2348 Q366836-1 QW-3765AT-01TK 1 C

7211 9576 CUSHION 466-A Q48342A-1 QW-3765AT-01TK 1 C

7211 9631 CUSHION 506 Q49364-1 QW-3765AT-01TK 2 C

1001 4042 CUSHION 2306-1 Q466421-1 QW-3765AT-01TK 2 C

1015 5782 HOLDER 3329 RJQ518016-001V02 QW-3765AT-01TK 1 C

1001 6591 HOLDER/BATTERY Q366808-1 QW-3765AT-01TK 1 C

1015 5789 HOLDER/HOUR WHEEL 3329 RJQ517854-001V01 QW-3765AT-01TK 1 C

1015 5784 INTERCONNECTOR/ 3329 RJQ518251-001V01 QW-3765AT-01TK 1 C

1006 5664 LABEL/ 2368 Q468543A-1 QW-3765AT-01TK 1 C

1015 7977 LCD K3364-01THP QW-3765AT-01TK 1 A

7110 6336 OSCILLATOR/CRYSTAL CFS-145LM07 QW-3765AT-01TK 1 B

7640 8453 PCB ASS'Y RJQ520211*002V01TK QW-3765AT-01TK 1 A

7228 0511 SCREW/FLAT 388 Q422638-1 QW-3765AT-01TK 2 B

1012 3230 SCREW/FLAT2730 RJQ513792-001V01 QW-3765AT-01TK 3 B

7105 5275 SENSOR/TILT TS-2418-P QW-3765AT-01TK 1 B

7201 9249 SPRING/COIL 675-3 Q413389A-1 QW-3765AT-01TK 1 B

7230 1025 SPRING/COIL 1510-1 Q459238-1 QW-3765AT-01TK 3 B

1005 3572 SPRING/COIL 2375-1 Q468078-1 QW-3765AT-01TK 4 B

1015 5788 SUPPORTER/PCB ASSY 3329 RJQ517852-001V01 QW-3765AT-01TK 1 C

1000 6652 TAPE/ADHESIVE Q465964-1 QW-3765AT-01TK 1 C

7224 0652 WASHER Q421691-1 QW-3765AT-01TK 1 C

1015 5787 WHEEL/HOUR 3329 RJQ517619-001V01 QW-3765AT-01TK 1 C

ecification Applicable Q R

GW-1501S-8AV

For the

Notes: Q - Used quantity

rices and minimum order/supply quantities of the above parts, refer to the Parts Price List P.P.L.-615.

R - Rank

— 10 —

6. PRECAUTIONS FOR REPAIR: MODULE QW-3765 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 main plate with the metallic tweezers. The contact should be made for about two seconds.

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

the case pointed by arrows.

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 the D button, press A and C buttons 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 Hz” so that you can check the accuracy with the quartz timer.

B) CANCELLATION OF THE “ACCURACY CHECKING MODE”

Press any button. Then the display is returned to its original state.

NOTE: The “ACCURACY CHECKING MODE” will

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

QW-3765

— 11 —

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 D button, press A and B buttons in 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 “ ” is not appeared on the display, disassemble again the module and check the contact spring between the Solar cell and PCB.

Press D, A and B buttons

Figure 1 Figure 2

3. To exit from TEST mode Press any button.

6-4. HOW TO CHECK TILT SENSOR

1) Press A, B and C 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.

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

“ ” appears on the display.

Figure 3

“TL” appears on the display.

Figure 4 Figure 5

Tilt the watch towards you more than 40°

— 12 —

“ ” appears on the display.

More than 40°

Ver. 1 : May. 2006

Correction of pages 9 and 10

CASIO COMPUTER CO.,LTD.

Overseas Service Division

Shibuya-ku, Tokyo 151-8543, Japan

6-2, Hon-machi 1-Chome

Casio G-SHOCK GW-1501B, G-SHOCK GW-1501S Service Manual & Parts List

Specifications and Main Features

Frequently Asked Questions

User Manual