Casio QW-2365, QW-2366, QW-2374 Service Manual

SERVICE MANUAL

& PARTS LIST

REF. NO. S/M-725

DEC. 2000

MODULE NO.

QW-2365
QW-2366

SHN-110SHN-111

R

(WITHOUT PRICE)

CONTENTS

Page

1. SPECIFICATIONS: QW-2365/2366............................................................ 1

2. OPERATION CHART: QW-2365/2366.......................................................2

3. DRAWINGS: QW-2365/2366

3-1. LCD DIAGRAM ...................................................................................4

3-2. CIRCUIT DIAGRAM ............................................................................ 5

3-3. CHECKING TERMINALS AND COMPONENTS: QW-2365/2366 ..... 6

4. EXPLODED VIEW: QW-2365/2366............................................................7

5. EXPLODED VIEW: ANALOG BLOCK (C-20) OF QW-2365/2366 ............ 8

6. PARTS LIST: QW-2365/2366.....................................................................9

7. PRECAUTIONS FOR REPAIR: QW-2365/2366

7-1. AC (ALL CLEAR) AND REMOVING OF MODULE ........................... 10

7-2. ACCURACY CHECKING ................................................................... 10

1. SPECIFICATIONS: QW-2365/2366

Item

Battery SR721W
Battery life Approx. 2 years
Current consumption 0.96 µA maximum
Alarm system Piezo plate on Back cover
Accuracy ±30 sec./month
Accuracy setting system Pad selection (P1 – P3)
Accuracy setting Unadjustable
Accuracy checking See page 10
Functions:

• Electro-luminescent backlight
Afterglow

• Dual time

• 1/100-sec. stopwatch
Measuring capacity: 59’59.99”
Measuring mode: Elapsed time

• Daily alarm

• Hourly time signal

• Auto-calendar (28 days for February)

• 12/24-hour formats

• Regular timekeeping
Analog: 2 hands (Hr, min.)
Digital: Hr, min, sec, pm, month, date, day

Detail

— 1 —

2. OPERATION CHART: QW-2365/2366

Hour

Alarm/Hourly Time Signal setting

Right
minutes
digit

Left
minutes
digit

AA

• Press

A to change from mode to mode.

AA

Timekeeping Mode Stopwatch ModeDual Time ModeAlarm ModeCalendar Mode

GENERAL GUIDE

LL

• Press

L to illuminate the display for about 2 seconds.

LL

• The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.

• Frequent use of the backlight shortens the battery life.

• The watch emits an audible sound whenever the display is illuminated. This does

not indicate malfunction of the watch.

• 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.

• When the backlight is turned on, it blinks whenever the minute hand moves. This is

normal, and does not indicate malfunction of the watch.

• The backlight of Module 2366 illuminates both the digital display and analog face.
The backlight of Module 2365 illuminates the digital display only.

TIMEKEEPING MODE

• Use this mode to set the current time. An incorrect digital time setting will result in
incorrect operation of the calendar.

ABOUT THE BACKLIGHT

To set the time and date

PM indicator

1.Hold down

2.Press

the range of 30 to 59, the seconds are reset to 00 and 1 is added to the minutes. If
the seconds count is in the range of 00 to 29, the minutes count is unchanged.

3.Press

4.Press

high speed.

5.Press

6.Press

digits at high speed.

7.Press

8.Press

• When 12-hour format is selected, the indicator P appears on the display to indicate
“p.m.” times. There is no indicator for “a.m.” times.

9.Press

• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.

To set the hands

When in any Mode, press
Each press of
minute.
Holding down
the setting and cannot reverse it.

Minute handHour hand

CC

Hold down

C.

CC

Seconds

12/24

CC

Press

C.

CC

Hour Minutes

Seconds

CC

C until the seconds digits start to flash.

CC

AA

A to reset the seconds to 00. If you press

AA

CC

C to move the selection to the hour digits.

CC
AA

A to increase the hour digits. Holding down

AA

CC

C to move the selection to the minutes digits.

CC

AA

A to increase the minutes digits. Holding down

AA

CC

C to move the selection to 12/24.

CC
AA

A to toggle the timekeeping format between 12-hour and 24-hour.

AA

CC

C to complete the procedure.

CC

BB

B with a thin object to advance the analog time setting.

BB

B advances the time by 20 seconds. Three presses advance by one

BB

BB

B advances the analog setting at high speed. You can only advance

BB

BB

CC

Press

C.

CC

Press

Hour

Minutes

CC

Press

C.

CC

AA

A while the seconds count is in

AA

AA

A changes the hour digits at

AA

AA

A changes the minutes

AA

CC

C.

CC

CALENDAR MODE

To set the date

CC

Hold down

C.

CC

Month Day of weekDay

Month Day

Day of week

1.Hold down

2.Press

3.Press

4.Press

5. Press

6.Press

7.Press

• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Calendar Mode automatically.

CC

C until the month digits start to flash.

CC

AA

A to increase the month digits. Holding down

AA

speed.

CC

C to move the selection to day digits.

CC
AA

A to increase the day digits. Holding down

AA

speed.

CC

C to move the selection to the day of the week indication.

CC
AA

A to advance to the next day. Holding down

AA

high speed.

CC

C to complete the procedure.

CC

CC

Press

C. Press

CC

AA

A changes the digits at high

AA

AA

A changes the digits at high

AA

AA

A changes the indication at

AA

CC

C.

CC

Press

CC

C.

CC

ALARM MODE

When the Daily Alarm is turned on, an alarm sounds for 20 seconds at the preset
time each day. When the Hourly Time Signal is switched on, the watch beeps every
hour on the hour.

To set the alarm time and to turn the Daily Alarm and Hourly Time Signal
on and off

Mode indicator

Alarm on indicator

Hour

Minutes

1.Hold down

2.Press

• The format (12-hour and 24-hour) of the alarm time matches the format you select
for normal timekeeping.

3.Press

4.Press

5.Press

6.Press

7.Press

8.Press

• At this time Daily Alarm and Hourly Time Signal automatically turn on.

CC

C until the hour digits start to flash.

CC

AA

A to increase the hour digits. Holding down

AA

speed.

CC

C to move the selection to the left minutes digit.

CC
AA

A to increase the left minutes digit. Holding down

AA

high speed.

CC

C to move the selection to the right minutes digit.

CC
AA

A to increase the right minutes digit. Holding down

AA

high speed.

CC

C to move Daily Alarm and Hourly Time Signal on and off setting.

CC
AA

A to change the status of the Daily Alarm and Hourly Time Signal in the

AA

following sequence.

Hold down

CC

C.

CC

Press

Hourly Time Signal on indicator

Press

CC

C.

CC

CC

C.

CC

Press

CC

C.

CC

Press

AA

A changes the digits at high

AA

AA

A changes the digit at

AA

AA

A changes the digit at

AA

CC

C.

CC

— 2 —

Both ON Both OFF Daily Alarm

CC

9.Press

C to complete the procedure.

CC

• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Alarm Mode automatically.

To stop the alarm

• Press any button to stop the alarm after it starts to sound.

To test the alarm and select an alarm tone

AA

Hold down

A in any mode (except when making any settings) to sound the alarm.

AA

Each time you test the alarm, a four different alarm tones. The alarm tone you select
is used for the Daily Alarm and Hourly Time Signal.

• Note that holding down

AA

A also changes the mode.

AA

only

Hourly Time
Signal only

To set the Dual Time

DUAL TIME MODE

Hold down

CC

C. Press

CC

CC

C. Press

CC

CC

C.

CC

Hour Minutes 12/24

CC

Press

C.

CC

Hour

Mode indicator

PM indicator

1.Hold down

2.Press
speed.

3. Press

4.Press
speed.

5.Press

6.Press

• When 12-hour format is selected, the indicator P appears on the display to indicate

“p.m.” times. There is no indicator for “a.m.” times.

7.Press

• If you do not operate any button for a few minutes while a selection is flashing, the

flashing stops and the watch goes back to the Dual Time Mode automatically.

• In the Dual Time Mode, the seconds count is synchronized with the seconds count

of the Timekeeping Mode.

Minutes

Seconds

CC

C

until the hour digits start to flash.

CC

AA

A

to increase the hour digits. Holding down

AA

CC

C

to move the selection to the minutes digits.

CC
AA

A

to increase the minutes digits. Holding down

AA

CC

C

to move the selection to 12/24.

CC
AA

A

to toggle the timekeeping format between 12-hour and 24-hour.

AA

CC

C

to complete the procedure.

CC

AA

A

changes the digits at high

AA

AA

A

changes the digits at high

AA

STOPWATCH MODE

The Stopwatch Mode lets you measure elapsed time. The
range of the stopwatch is 59 minutes 59.99 seconds.

To use the Stopwatch

CC

C

1.Press

to start the stopwatch.

CC
CC

C

2.Press

to stop the time measurement.

CC

CC

C

as many times as you want to resume

CC

Minutes Seconds

1/100 second

Mode indicator

• You can press
and stop timing.

3. After you are finished using the stopwatch, hold down

CC

C

to clear the stopwatch time to all zeros.

CC

— 3 —