Casio QW-2489 Service Manual & Parts List Download Page 4

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2. OPERATION CHART: QW-2489

If you do not perform any operation for a few minutes while a setting screen (with
flashing digits) is on the display, the watch automatically exits the setting screen.

If you do not perform any operation for a few minutes in any mode besides
stopwatch mode, the watch automatically reverts to the normal timekeeping
screen.

Alarm Mode

Stopwatch Mode

Memo Mode

General Guide

Press 

C

C

C

C

C

 to change from mode to mode.

Pressing 

E

E

E

E

E

 in any mode besides the Alarm Mode illuminates to the display for

about three seconds.  The backlight is disabled while a setting screen is on
the display.

Timekeeping Mode

Day Counter Mode

Press 

C

C

C

C

C

.

Timekeeping Mode

Press 

D

D

D

D

D

 to toggle between 12-hour and 24-hour

timekeeping.

With 12-hour timekeeping, times between midnight
and noon are indicated by A (am), while times
between noon and midnight are indicated by P
(pm).

The A and P indicators do not appear for 24-hour
timekeeping.

Pressing 

B

B

B

B

B

 plays a randomly selected melody.  To

stop a playing melody, press any button besides 

E

E

E

E

E

.

Pressing 

E

E

E

E

E

 while a melody is playing toggles the

display between an animated character and the
name of the melody.

Press 

E

E

E

E

E

 to illuminate the display for about three

seconds.  When 12-hour timekeeping is being used,
pressing 

E

E

E

E

E

 also displays an animated character.

Timekeeping Mode Settings
In addition to settings for the current time and date, the Timekeeping Mode
setting screen also lets you turn button tones and melody play on and off,
adjust tones and melody volume, and adjust display contrast.

To make Timekeeping Mode settings
1. While in the Timekeeping Mode, hold down 

A

A

A

A

A

 until the second’s digits flash

on the display, indicating the setting screen.

2. Press 

C

C

C

C

C

 to move the flashing in the sequence shown below.  Press 

E

E

E

E

E

 to move

the flashing in the opposite direction.

Seconds

DST

Hour

Minutes

Year

Contrast
(CNT)

Volume
(VOL)

Sound
(SOUND)

Month

Day

Press .

Press .

Month

Day of week

Day

PM indicator

Hour

Minutes

Seconds

DST indicator 2

3. While the second’s setting is selected (flashing),

press 

D

D

D

D

D

 or 

B

B

B

B

B

 to reset it to 00.

If you press 

D

D

D

D

D

 or 

B

B

B

B

B

 while the second’s setting is in

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

While the DST  (Daylight Saving Time) setting is
selected, press 

D

D

D

D

D

 or 

B

B

B

B

B

 to toggle it on and off.

DST indicator 1 is displayed in the Timekeeping
Mode setting screen only when the DST setting is
selected.  It shows ON when the DST setting is on,
and OFF when the DST setting is off.

DST indicator 2 is displayed in the Timekeeping
Mode, Day Counter Mode and Alarm Mode when
the DST setting is turned on.

* Daylight Saving Time (DST), which is also sometimes called “summer time”

advances the time for one hour, as is the custom in some areas during the
summer.  Remember that not all countries or even local areas use Daylight
Saving Time.

While the SOUND (button tones) setting is selected, press 

D

D

D

D

D

 or 

B

B

B

B

B

 to turn the

beep and musical tone on and off, as shown below.

Changing the SOUND also changes the Hourly Time Signal tones.

Beep

Musical tone

Off

Press .

Press .

While the VOL setting is selected, press 

D

D

D

D

D

 or 

B

B

B

B

B

 to toggle it between loud and soft.

Loud

Soft

Press  

or .

DST 

indicator 2

DST indicator 1

With some models, changing the volume setting affects volume very little.

While the CNT setting is selected, press 

D

D

D

D

D

 to make the display darker, or 

B

B

B

B

B

 to

make it lighter.

While any other setting is selected (flashing), press 

D

D

D

D

D

 to increase it or 

B

B

B

B

B

 to

decrease it.  Holding down either button changes the setting at high speed.

4. After you make the settings you want, press 

A

A

A

A

A

 to exit the setting screen.

The day of the week is automatically set in accordance with the date.

The date can be set within the range of January 1, 2000 to December 31, 2039.

The watch's built-in full automatic calendar automatically makes allowances
for different month lengths and leap years.
Once you set the date, there should be no reason to change it except after
the replacement of the watch's battery.

About the Backlight

Pressing 

E

E

E

E

E

 in any mode besides the Alarm Mode illuminates the display for

about three seconds.  The backlight is disabled while a setting screen is on the
display.

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

Frequent use of the backlight shortens battery life.

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

The backlight automatically turns off an alarm sounds.

The watch emits an audible sound whenever the display is illuminated.  This
does not indicate malfunction.

Day Counter Mode

Mode indicator

Day counter 
record number

Text

Number of days

DAYS indicator

Year

Month

Day

Target Date

The Day Counter Mode lets you count the number of days from the
Timekeeping Mode’s current date to a specific target date.

There are five Day Counter records, each of which can be assigned up to 12
characters of text and a target date.

When a target date is reached, the DAYS indicator flashes on the display in
the Timekeeping Mode.  The DAYS indicator also flashes in the Day Counter
Mode when the screen for the target date is on the display.

The DAYS indicator flashes on the target date each year, regardless of the
year setting of the target date.

The initial default date for a Day Counter record is 2001/1/1, and the text area
contains All spaces.  (All spaces for the text display a series of hyphens “ – – –
– – ”.)

Recalling Day Counter Data
In the Day Counter Mode, press 

D

D

D

D

D

 to scroll through the Day Counter record

screens.

The day count is a negative value whenever the target date comes before the
current date.

To set the target date
1. In the Day Counter Mode, press 

D

D

D

D

D

 to display a record number you want to

set.

2. Hold down 

A

A

A

A

A

 until the first (leftmost) text character starts to flash on the

display.  This indicates the input screen.

3. Press 

C

C

C

C

C

 to move the flashing in the sequence shown below.  Press 

E

E

E

E

E

 to move

the flashing in the opposite direction.

Press .

Press .

Character 1

Day

Character 12

Year

Month

4. While the flashing is located within the text area, use 

D

D

D

D

D

 or 

B

B

B

B

B

 to scroll through

characters at the current location of the flashing.  Holding down either button
scrolls through characters at high speed.

Press .

Press .

Space

A to Z

Punctuation

Japanese
characters

Hyphen

Symbols

Numbers

 See the “CHARACTER LIST” at the back of this manual for details.

5. While any other setting is selected, press 

D

D

D

D

D

 to increase it or 

B

B

B

B

B

 to decrease it.

Holding down either button changes the setting at high speed.

Pressing 

D

D

D

D

D

 and 

B

B

B

B

B

 at the same time while the flashing is located within the text

area clears any input text and resets the date setting to the current date.  At
this time the message “CLEAR” appears on the display.

Pressing 

D

D

D

D

D

 and 

B

B

B

B

B

 at the same time while the flashing is located within the

date area resets the date setting to the current date without affecting the text.

6. After you make the settings you want, press 

A

A

A

A

A

 to exit the input screen.

The date can be set within the range of January 1, 1940 to December 31,
2039.

Summary of Contents for QW-2489

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2489 MODULE NO R REF NO S M 760 DEC 2001 BGM 221 ...

Page 2: ...RT QW 2489 2 3 DRAWINGS QW 2489 3 1 LCD DIAGRAM 4 3 2 CIRCUIT DIAGRAM 5 3 3 CHECKING TERMINALS AND COMPONENT 6 4 EXPLODED VIEW QW 2489 7 5 PARTS LIST QW 2489 8 6 PRECAUTIONS FOR REPAIR QW 2489 6 1 AC ALL CLEAR AND REMOVING OF MODULE 9 6 2 ACCURACY CHECKING 9 ...

Page 3: ...t date Memory capacity 5 records 12 character of text A mark appears on the display to let you know when a target date is reached Free memos 5 independent free memos up to 8 characters and 16 numerals Katakana display 1 100 sec stopwatch Measuring capacity 23 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Musical alarms 5 independent daily alarms 5 melodies each presettable w...

Page 4: ...r While any other setting is selected flashing press D D D D D to increase it or B B B B B to decrease it Holding down either button changes the setting at high speed 4 After you make the settings you want press A A A A A to exit the setting screen The day of the week is automatically set in accordance with the date The date can be set within the range of January 1 2000 to December 31 2039 The wat...

Page 5: ...r beep You can also press E E E E E to play an alarm s melody while setting the alarm time To stop a playing melody or beep press any button Hourly Time Signal indicator 1 Hourly Time Signal indicator 2 Hourly Time Signal indicator 3 Alarm indicator 1 is displayed in the alarm mode only It indicates the on off status of the currently displayed alarm only Note that this indicator is used for differ...

Page 6: ...X16Y6 X17Y6 X18Y6 X19Y6 X20Y6 X21Y6 X22Y6 L C 8 K1 X0Y7 X1Y7 X2Y7 X3Y7 X4Y7 X5Y7 X6Y7 X7Y7 X8Y7 X9Y7 X10Y7 X11Y7 X12Y7 X13Y7 X14Y7 X15Y7 X16Y7 X17Y7 X18Y7 X19Y7 X20Y7 X21Y7 X22Y7 L 2 7 L 2 8 L 2 9 L 3 0 L 3 1 L 3 2 L 3 3 L 3 4 L 3 5 L 3 6 L 3 7 L 3 8 L 3 9 L 4 0 L 4 1 L 4 2 L 4 3 L 4 4 L 4 5 L 4 6 L 4 7 L 4 8 L 4 9 L 5 0 L C 1 e7 g7 c7 e6 g6 c6 X22Y3 X21Y3 X20Y3 X19Y3 X18Y3 X17Y3 X16Y3 X15Y3 X14Y3...

Page 7: ...D1 1 VDD2 GND VCH VDSP VDD1 VC1 VC2 VHF VC3 VC4 VDD3 C7 C8 C4 C3 C2 C6 C5 C1 LL1 C10 EL FRONT BACK BAT CT C9 C11 Xtal BD1 BD2 MIN ENV SDO SCK SCUT VCC Vcc C12 Vss A2 A1 A0 WP WP SCL SCL SDA SDA EEPROM L3 L50 LC1 LC8 KI1 KI2 KI3 KI4 KI5 KI8 KC5 1 S1 S2 S3 S4 F0 KI9 KC4 KC3 KC2 KI7 KI6 KC1 R2 Tr1 E CLF2 CLF1 V GND L VOUT L INV 1 No bonding 3 2 CIRCUIT DIAGRAM ...

Page 8: ...1 GND XT SCK VCH GND VC1 VC2 GND VHF GND VDSP GND KI5 L L VCH KI3 GND VDD2 GND GND SCK SDO WP GND GND GND GND C9 Capacitor Chip C1 Capacitor Chip C7 Capacitor Chip C8 Capacitor Chip 6 Cushion 506 Memory External 7211 9631 Resistor Chip 6 Cushion 506 7211 9631 Capacitor Tantalum Capacitor Tantalum Coil Diode 4 Oscillator Crystal 1004 1131 1001 0950 CT 3 Capacitor Trimmer Xtal Coil LL2 Capacitor Chi...

Page 9: ...LODED VIEW QW 2489 Battery Lithium CR1620 11 7233 2629 PCB Unrepairable 9 1002 1815 1 1005 8548 2a 7020 6080 2b 7020 6086 2c 7020 6081 10 7229 0790 5 1002 7903 13 7230 0623 8 7231 1885 12 7233 2732 14 7230 0616 ...

Page 10: ... QW 2489YC 01TK 1 A 2b 7020 6086 EL YEL 1564 A 63 QW 2489YC 02TK 1 A 2c 7020 6081 EL YEL 1564 A 03 QW 2489YC 03TK 1 A 3 1001 0950 CAPACITOR TRIMMER CTZ2E 30C W2 P QW 2489YC Common 1 B 4 1004 1131 OSCILLATOR CRYSTAL DT 26SJ T QW 2489YC Common 1 B 5 1002 7903 CONTACT BATTERY Q39603B 1 QW 2489YC Common 1 C 6 7211 9631 CUSHION 506 Q49364 1 QW 2489YC Common 2 C 7 7211 0064 CUSHION 6 Q4914 1 QW 2489YC C...

Page 11: ...MODE Push any button except for D 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 6 PRECAUTIONS FOR REPAIR QW 2489 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 ...

Page 12: ...CASIO TECHNO CO LTD Overseas Service Division Nishi Shinjuku Kimuraya Bldg 1F 5 25 Nishi Shinjuku 7 Chome Shinjuku ku Tokyo 160 0023 Japan ...

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