Casio QW-2957 Service Manual And Parts List Download Page 4

— 2 —

2. OPERATION CHART: MODULE QW-2957

About This Manual

Depending on the model of your watch, display text
appears either as dark figures on a light background or
light figures on a dark background. All sample displays
in this manual are shown using dark figures on a light
background.

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.

(Light)

Timekeeping Mode

World Time Mode

e-DATA MEMORY Mode

Stopwatch Mode

Countdown Timer Mode

Alarm Mode

Press     .

General Guide

Press 

C

 to change from mode to mode.

In any mode, press 

L

 to illuminate the display.

Hour : Minutes Seconds

PM indicator 

Day of week 

Month – Day 

Timekeeping

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

Read This Before You Set the Time and Date !

The times displayed in the Timekeeping Mode and World
Time Mode are linked. Because of this, make sure you
select a city code for your Home City (the city where you
normally use the watch) before you set the time and date.

City code 

To set the time and date

1. In the Timekeeping Mode, hold down 

A

 until the

seconds start to flash, which indicates the setting
screen.

2. Press 

C

 to move the flashing in the sequence shown

below to select other settings.

Minutes

12/24-Hour 
Format

Seconds

City Code

Hour

Year

Day

DST

Month

3. When the setting you want to change is flashing, use 

D

 and 

B

 to change it as

described below.

Screen

           

50

OFF

TYO

P

10:58

12H

2005

6-30

To do this:

Reset the seconds to 

00

Toggle between Daylight Saving Time (

ON

)

and Standard Time (

OFF

)

Change the city code

Change the hour or minutes

Toggle between 12-hour (

12H

) and 24-

hour (

24H

) timekeeping

Change the year

Change the month or day

Do this:

Press 

D

.

Press 

D

.

Use 

D

 (east) and 

B

 (west).

Use 

D

 (+) and 

B

 (–).

Press 

D

.

Use 

D

 (+) and 

B

 (–).

For full information on city codes, see the “City Code Table”.

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

4. Press 

A

 to exit the setting screen.

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 the A (AM) 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.

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

The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.

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 time between DST and Standard Time

1. In the Timekeeping Mode, hold down 

A

 until the

seconds start to flash, which indicates the setting
screen.

2. Press 

C

 to display the DST setting screen.

3. Press 

D

 to toggle between Daylight Saving Time

(

ON

 displayed) and Standard Time (

OFF

 displayed).

Note that you cannot switch between Standard Time
and Daylight Saving Time while 

GMT

 is selected as

the Home City code.

4. Press 

A

 to exit the setting screen.

The DST indicator appears on the display to indicate
that Daylight Saving Time is turned on.

Record number  
(Page number)  

Text  

e-DATA MEMORY

You can use the watch’s e-DATA MEMORY to store e-mail
addresses, Web page URLs, and other text data.
You can also use a password to limit access to e-DATA
MEMORY contents.

All of the operations in this section are performed in the
e-DATA MEMORY Mode, which you enter by pressing

C

.

e-DATA MEMORY Management

e-DATA MEMORY can hold up to 315 characters total,
while each record can contain up to 63 characters. The
maximum number of records depends on the number of
characters per record, as shown below.

63 characters per record: 5 records

7 or fewer characters per record: 40 records

To create a new e-DATA MEMORY record

1. In the e-DATA MEMORY Mode, press 

D

 and 

B

 at the

same time to display the remaining memory screen.

If 

0

 % is shown for remaining memory, it means that

memory is full. To store another record, you will first
have to delete some of the records stored in memory.

2. Hold down 

A

 until the flashing cursor (

#

) appears on

the display, which indicates the setting screen.

The setting screen also shows the record number that
is automatically assigned to the new record.

3. Input the text you want.

When inputting the text, use 

D

 (+) and 

B

 (–) to

cycle through characters at the current cursor
location, and 

C

 to move the cursor to the right. See

“Inputting Text”.

4. Press 

A

 to store your data and return to the e-DATA

MEMORY record screen (without the cursor).

Pressing 

A

 causes the message 

SET

 

to appear for about two seconds as the data

is stored. After that, the e-DATA MEMORY record screen appears.

The text can show only three characters at a time, so longer text scrolls continuously
from right to left. The last character is indicated by the symbol 

s

 

after it. Press 

A

 to

stop and restart scrolling.

Records are stored in memory in the sequence they are created.

Remaining memory (%) 

(Light)

Summary of Contents for QW-2957

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2957 MODULE NO R REF NO S M 906 AUG 2005 G 7600 Ver 1 Sep 2005 ...

Page 2: ...RAWINGS MODULE QW 2957 3 1 LCD DIAGRAM 6 3 2 CIRCUIT DIAGRAM 7 3 3 CHECKING TERMINALS AND COMPONENT 8 4 EXPLODED VIEW MODULE QW 2957 9 5 PARTS LIST MODULE QW 2957 10 6 PRECAUTIONS FOR REPAIR MODULE QW 2957 6 1 AC ALL CLEAR AND REMOVING OF MODULE 11 6 2 ACCURACY CHECKING 11 ...

Page 3: ... data when there are 7 characters per record actual number of records depends on the number of characters per record Other Password World time 29 time zones 27 cities city code display daylight saving on off 1 100 sec stopwatch Measuring capacity 23 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Countdown timer Input range 1 min to 24 hr Unit 1 sec Other Auto repeat Multi ala...

Page 4: ... the week is automatically displayed in accordance with the date year month and day settings 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 time between DST and Standard Time 1 In the Timekeeping Mode hold down A until the s...

Page 5: ...leted the Password Setting screen appears Current time in the zone of the selected city code Timekeeping Mode time City code World Time World Time shows the current time in 27 cities 29 time zones around the world All of the operations in this section are performed in the World Time Mode which you enter by pressing C To view the time in another city code In the World Time Mode press D to scroll th...

Page 6: ...ime is frozen on the display clears the split time and returns to elapsed time measurement 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 Re start Stop Clear Start Split displayed Split release Stop Clear Start Split Stop Split release Clear Split Time Two Finishes First runner fini...

Page 7: ...erforming any operation it automatically changes to the Timekeeping Mode If you leave a screen with flashing digits or a cursor on the display for two or three minutes without performing any operation the watch automatically exits the setting screen Except for password input any settings you have made up to that point are saved automatically Scrolling The B and D buttons are used in various modes ...

Page 8: ...1 U0 A1 P1 A0 REP P0 f9 e9 DST0 f5 e5 a5 g5 d5 a9 g9 d9 b5 c5 DST1 b9 c9 f4 e4 f8 e8 a4 g4 d4 d8 b4 c4 b8 g8 a8 c8 MIN COL0 HYP COL1 f3 e3 f7 e7 a3 g3 d3 g7 d7 b3 c3 b7 c7 f2 e2 a2 g2 d2 SEC b2 c2 PER AUTO f1 e1 a1 g1 d1 ALM0 c1 b1 e0 SIG f0 a0 g0 d0 b0 SNZ1 c0 a7 e6 f6 a6 d6 g6 b6 c6 L40 L39 L34 L35 L36 L37 L41 L42 L43 L44 LC5 LC1 LC2 LC3 LC4 L38 L52 L51 L50 L49 L48 COM SEG X0 L3 L4 L5 L6 L7 L8 L...

Page 9: ...in dash line LD3KC3 Normal Low pin is used as the LD pin Therefore LD3KD3 pin is not specified as a soldering pad Also all the parts shown in dash line are not mounted if LED is not mounted 6 Normal High 7 KC3 is used in this module 8 KC2 is used in this module IC GND VDD2 BAT VCH VDD3 VC1 VC2 C3 C2 C4 XTB Xtal L3 L52 LC1 LC5 CT LD1 S1 S2 S3 VDD1 C1 BD LL1 Tr1 XT T1 T2 KI1 KI2 KI3 KI4 KI9 KI6 KI7 ...

Page 10: ...I9 KI9 KC4 KC4 KC4 N4 N4 N3 N3 N2 N2 N1 N1 T2 T1 KI7 KI7 KI6 KI6 XT KI8 KI4 KI5 KI3 KI1 VOUT GND GND GND KI8 BD LD2KC2 LD2KC2 LD2KC2 XTB KI2 VDD1 VOSC VCH L LD1 AC CLF1 CLF2 L VC1 VDD3 VC2 KC1 LED1 R1 VDD2 GND LD3KC3 LL1 KI5 VOSC VCH KI1 KI3 L L KI4 VOUT VC1 VDD2 KI2 XT XTB VC2 VC1 CLF1 CLF2 GND VDD2 GND XT LL1 GND VDD2 LL1 LL1 BD GND VOSC VCH GND LD3KC3 LED1 GND VDD2 R1 LD1 GND AC VDD2 KI8 KC1 KI...

Page 11: ...LODED VIEW MODULE QW 2957 10a 10193878 10b 10193879 8 10201005 6 10201012 17 10208889 12 76409012 PCB ass y 15 72019599 7 10076070 5 10097687 9 10201006 16 10201009 2 72360283 14 72330952 Battery Lithium CR2016 ...

Page 12: ...72110064 CUSHION 6 Q4914 1 QW 2957 Common 1 C 4 72119631 CUSHION 506 Q49364 1 QW 506C01 QW 2957 Common 2 C 5 10097687 CUSHION 2549 Q470646 1 QW 2957 Common 1 C 6 10201012 EL YEL 2957 A 01 QW 2957 Common 1 A 7 10076070 HOLDER BATTERY 2709 Q255451 1 QW 2957 Common 1 C 8 10201005 INTERCONNECTOR 2957 1 RJQ525786 001V01 QW 2957 Common 1 C 9 10201006 INTERCONNECTOR 2957 2 RJQ525787 001V01 QW 2957 Common...

Page 13: ...ck 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 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...

Page 14: ...Ver 1 Sep 2005 Addition of the operation chart page 2 to 5 Correction of page 11 CASIO COMPUTER CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan ...

Reviews: