Casio QW-2957 Service Manual And Parts List Download Page 7

— 5 —

Cursor  

City Code Table

*Based on data as of December 2004.

– – –

– 11.0

Pago Pago

HNL

Honolulu

–10.0

Papeete

ANC

Anchorage

–09.0

Nome

LAX

Los Angeles

–08.0

San Francisco, Las Vegas, Vancouver, Seattle/Tacoma,
Dawson City

DEN

Denver

–07.0

El Paso, Edmonton

CHI

Chicago

–06.0

Houston, Dallas/Fort Worth, New Orleans,
Mexico City, Winnipeg

NYC

New York

–05.0

Montreal, Detroit, Miami, Boston, Panama City,
Havana, Lima, Bogota

CCS

Caracas

–04.0

La Paz, Santiago, Port Of Spain

RIO

Rio De Janeiro

–03.0

Sao Paulo, Buenos Aires, Brasilia, Montevideo

– – –

– 02.0

– – –

– 01.0

Praia

GMT

+00.0

Dublin, Lisbon, Casablanca, Dakar, Abidjan

LON

London

PAR

Paris

+01.0

Milan, Rome, Madrid, Amsterdam, Algiers, Berlin,
Hamburg, Frankfurt, Vienna, Stockholm

CAI

Cairo

+02.0

Athens, Helsinki, Istanbul, Beirut, Damascus,

JRS

Jerusalem

Cape Town

JED

Jeddah

+03.0

Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow

THR

Tehran

+03.5

Shiraz

DXB

Dubai

+04.0

Abu Dhabi, Muscat

KBL

Kabul

+04.5

KHI

Karachi

+05.0

Male

DEL

Delhi

+05.5

Mumbai, Kolkata

DAC

Dhaka

+06.0

Colombo

RGN

Yangon

+06.5

BKK

Bangkok

+07.0

Jakarta, Phnom Penh, Hanoi, Vientiane

HKG

Hong Kong

+08.0

Singapore, Kuala Lumpur, Beijing, Taipei, Manila,
Perth, Ulaanbaatar

TYO

Tokyo

+09.0

Seoul, Pyongyang

ADL

Adelaide

+09.5

Darwin

SYD

Sydney

+10.0

Melbourne, Guam, Rabaul

NOU

Noumea

+11.0

Port Vila

WLG

Wellington

+12.0

Christchurch, Nadi, Nauru Island

City

City

GMT

Other major cities in same time zone

Code

Differential

To turn the auto light switch on and off
In the Timekeeping Mode, hold down 

L

 for about one second to toggle the auto light

switch on (

 displayed) and off (

 not displayed).

The auto light switch on indicator (

) is on the display in all modes while the auto

light switch is turned on.

In order to protect against running down the battery, the auto light switch
automatically turns off approximately six hours after you turn it on. Repeat the above
procedure to turn the auto light switch back on if you want.

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.

Graphic Area

The following describes the information indicated by the graphic area in each mode.

In the Timekeeping Mode, World Time Mode, and Alarm Mode, the graphic area
indicates the passage of each second of the current time (Timekeeping Mode time).

In the e-DATA MEMORY Mode, the graphic area indicates the number at the
flashing digit during password input.

In the Countdown Timer Mode, the graphic area indicates the passage of each
second of the countdown.

In the Stopwatch Mode, the graphic area indicates the passage of each 1/10 second
of the elapsed time.

Seconds second

Input number 

1/10

e-DATA MEMORY Mode

Stopwatch Mode

Timekeeping Mode

Inputting Text

The following describes how to input text in the e-DATA
MEMORY and Alarm Modes.

To input characters
1. When the cursor is on the display, use 

D

 and 

B

 to

cycle through the available letters, numbers and
symbols, in the sequence shown below.

(space)

to

(symbol)

to

(number)

Press .

Press .

  to  

(lower-case)

  to  

(upper-case)

2. When the character you want is at the cursor position, press 

C

 to move the cursor

to the right.

3. Repeat steps 1 and 2 to input the rest of the characters you want.

See the “Character List” for information about the characters you can input.

Auto Return Features

If you leave the watch in the e-DATA MEMORY or Alarm Mode for two or three
minutes without performing 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 and setting screens to scroll

through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed.

Initial Screens

When you enter the e-DATA MEMORY, 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 

00

 

without changing the minutes.

The year can be set in the range of 2000 to 2039.

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.

World Time

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

The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.

The GMT differential is the time difference of the time zone where the city is located
from Greenwich Mean Time.

GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC) data.

Backlight Precautions

The electro-luminescent panel that provides illumination loses power after very long
use.

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

The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.

The backlight automatically turns off whenever an alarm sounds.

Frequent use of the backlight shortens the battery life.

Auto light switch precautions

Wearing the watch on the inside of your wrist and movement or vibration of your arm
can cause the auto light switch to activate and illuminate the display. To avoid
running down the battery, turn off the auto light switch whenever engaging in
activities that might cause frequent illumination of the display.

The backlight may not light 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.

The backlight turns off in about one second, 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 the backlight
does not light, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back
toward you 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, the backlight may not light until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.

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.

Character List

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 ...

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