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2. OPERATION CHART: QW-2461

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

 to change from mode to mode.

Pressing 

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

.

Timekeeping Mode

Press 

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

 plays a melody.  To stop a playing

melody, press any button besides 

E

.

Special melodies play each year on January 1 and
December 25.

Pressing 

E

 while a melody is playing toggles the

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

Press 

E

 to illuminate the display for about three

seconds.

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

 until the second’s digits flash

on the display, indicating the setting screen.

2. Press 

C

 to move the flashing in the sequence shown below.  Press 

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

 or 

B

 to reset it to 00.

If you press 

D

 or 

B

 while the seconds setting is in

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

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

D

 or 

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

 or 

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

 or 

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

 to make the display darker, or 

B

to make it lighter.

While any other setting is selected (flashing), press 

D

 to increase it or 

B

 to

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

About the Backlight

Pressing 

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.

About the animated character

An animated character appears on the display of the watch any time you turn
on the EL backlight after December 25 (2000 for Module 2255; 2001 for
Module 2461). No animated character appears before then.

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

 to scroll through the Day Counter record

screens.

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

4. After you make the settings you want, press 

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.

Содержание QW-2461

Страница 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2461 MODULE NO R REF NO S M 757 NOV 2001 BGM 220LV ...

Страница 2: ...T QW 2461 2 3 DRAWINGS QW 2461 3 1 LCD DIAGRAM 5 3 2 CIRCUIT DIAGRAM 6 3 3 CHECKING TERMINALS AND COMPONENT 7 4 EXPLODED VIEW QW 2461 8 5 PARTS LIST QW 2461 9 6 PRECAUTIONS FOR REPAIR QW 2461 6 1 AC ALL CLEAR AND REMOVING OF MODULE 10 6 2 ACCURACY CHECKING 10 ...

Страница 3: ...r 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 second stopwatch Measuring capacity 23 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Musical alarms 5 independent daily alarms Melody presettable with a unique 2 part harmony and beep Two special m...

Страница 4: ...ight Saving Time While the SOUND button tones setting is selected press D or 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 or B to toggle it between loud and soft Loud Soft Press or DST indicator 2 DST indicator 1 With some models changing the vol...

Страница 5: ...Alarm indicator 2 Alarm 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 different purposes in other modes Alarm indicator 2 is displayed in all modes when any of the five alarms is turned on Alarm indicator 3 is displayed in the Alarm Mode only It shows on when the currently ...

Страница 6: ...acter 1 Title Character 1 Data Character 16 Mode indicator Memo number Title 4 Use D or B to scroll through characters at the current location of the flashing Holding down either button scrolls 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 Pressing D and B at the same time while inputting ...

Страница 7: ...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...

Страница 8: ...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 ...

Страница 9: ...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...

Страница 10: ... 8 4 EXPLODED VIEW QW 2461 Battery Lithium CR1620 11 7233 2629 PCB Unrepairable 9 1002 1815 1 1006 5673 2 1006 5674 10 7229 0790 5 1002 7903 13 7230 0623 8 7231 1885 12 1006 5672 14 7230 0616 ...

Страница 11: ...2 1006 5674 EL YEL 1564 A 91 ANG QW 2461YC 01TK 1 A 3 1001 0950 CAPACITOR TRIMMER CTZ2E 30C W2 P QW 2461YC 01TK 1 B 4 1004 1131 OSCILLATOR CRYSTAL DT 26SJ T QW 2461YC 01TK 1 B 5 1002 7903 CONTACT BATTERY Q39603B 1 QW 2461YC 01TK 1 C 6 7211 9631 CUSHION 506 Q49364 1 QW 2461YC 01TK 2 C 7 7211 0064 CUSHION 6 Q4914 1 QW 2461YC 01TK 1 C 8 7231 1885 HOLDER BATTERY Q360562 1 QW 2461YC 01TK 1 C 9 1002 181...

Страница 12: ... 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 2461 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...

Страница 13: ...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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