Casio WVA-400D Service Manual And Parts List Download Page 3

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1. SPECIFICATIONS: MODULE QW-2727/2730

Battery

CTL1616 (Storage battery)

Note: Use CTL1616 only. Other storage battery or CR1616 can cause

damage to the watch.

Battery life

Approx. 5 months (from full charged condition)

Current consumption

0.568 

µ

A maximum

Alarm system

Piezo plate on Cover/Back

Accuracy

±

15 sec./month

Accuracy setting system

Trimmer capacitor

Accuracy checking

See page 17

Functions

• LED light

Afterglow

• Solar powered

• Time calibration signal reception

Auto receive

Manual receive

Last date/time received display

• Time Calibration Signal

QW-2727:

Receivable Time Calibration Signals
Mainflingen, Germany (Call Sign: DCF77, Frequency: 77.5kHz)

QW-2730:

Receivable Time Calibration Signals Fort Collins,
Colorado (Call Sign: WWVB, Frequency: 60kHz)
Fukushima, Japan (Call Sign: JJY, Frequency: 40kHz)
Fukuoka/Saga, Japan(Call Sign: JJY, Frequency: 60kHz)

• e-DATE MEMORY

Meomory capacity: Up to 40 records for Internet access codes and other
data (when there are 7characters per record), actual number of records
depends on the number of characters per record

• World Time

29 time zones (30 cities), daylight saving time on/off

• Time Memo

Memory for up to 10 time memos, each with date (month and day) and time

• 1/100-sec. stopwatch

Measuring capacity: 23:59’59.99"

Measuring modes: Elapsed time, split time, 1st-2nd place times

• Daily alarms

5 independent daily alarms snooze feature for one alarm only

• Hourly time signal

• Low battery warning display

• Auto-calendar (to year 2039)

• 12/24-hour format

• Regular timekeeping:

Analog: 3 hands (Hr, min, sec)

Digital: Hr, min, sec, pm, month, date, day

Item

Detail

Summary of Contents for WVA-400D

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2727 2730 MODULE NO R REF NO S M 817 JUN 2003 WVA 400D WVA 400DJ Ver 1 Nov 2003...

Page 2: ...HECKING TERMINALS AND COMPONENTS 12 3 4 N1 N2 R1 R3 PADS 13 4 EXPLODED VIEW MODULE QW 2727 2730 14 5 PARTS LIST MODULE QW 2727 2730 16 6 PRECAUTIONS FOR REPAIR MODULE QW 2727 2730 6 1 AC ALL CLEAR AND...

Page 3: ...tion Signals Fort Collins Colorado Call Sign WWVB Frequency 60kHz Fukushima Japan Call Sign JJY Frequency 40kHz Fukuoka Saga Japan Call Sign JJY Frequency 60kHz e DATE MEMORY Meomory capacity Up to 40...

Page 4: ...and will move at high speed to the 12 o clock position where it will stop 2 Use D and B to select the city code you want to use as your Home City The following are the city codes for major cities in t...

Page 5: ...where it will stop 2 Press Ctwice to move the flashing to the auto receive on off setting 3 Press Dto toggle auto receive on ON and off OF If the current Home City setting is a city code that does no...

Page 6: ...rn to the Timekeeping Mode press C World Time The World Time Mode digitally displays the current time in 30 cities 29 time zones around the world Pressing A in the World Time Mode causes the applicabl...

Page 7: ...To delete a data memory record 1 In the Data Memory Mode display the record you want to delete 2 Hold down A until the flashing cursor appears on the display 3 Press B and D at the same time to delet...

Page 8: ...d to set the time and date after the battery reaches Level 3 indicated by flashing CHARGE indicator C from Level 4 You will not be able to configure any of the other settings until the battery reaches...

Page 9: ...imekeeping Mode and World Time Mode is calculated in accordance with the Greenwich Mean Time GMT differential for each city based on your Home City time setting GMT differential is calculated by this...

Page 10: ...p q r s t u v w x y z a b c e f g h i j k l m n o p q r s t u v w x y z _ e X Character List d A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q...

Page 11: ...13y1 x12y1 x11y1 x10y1 x9y1 x8y0 sig x6y0 x5y0 alm x3y0 x2y0 24 x0y0 a_light rc0 x8y1 x7y0 x6y1 x5y1 x4y0 x3y1 x2y1 x1y0 x0y1 col0 rc1 LC1 LC2 LC3 LC4 LC5 x22y2 x21y2 x20y2 x19y2 x18y2 x17y2 x16y2 x15...

Page 12: ...h2 Crh1 Rant1 Rs Rd Cc FET Rpd Rant3 14 DEC2 SK KS 2 6 6 4 4 4 3 3 3 3 3 5 3 10 11 12 3 An B1 Tr2 LED2 LED1 R2 R3 LED3 R4 2 2 L32 L36 L37 L55 L1 L2 L3 An B2 3 3 9 9 9 1 13 14 14 14 14 14 14 14 14 14 1...

Page 13: ...Rant1 Rs Rd Cc FET Rpd Rant3 14 DEC2 SK KS 2 6 6 4 4 4 5 10 11 12 An B1 Tr2 LED2 LED1 R2 R3 LED3 R4 2 2 L32 L36 L37 L55 L1 L2 L3 An B2 9 9 9 1 3 13 RPM Tr3 14 14 14 3 3 3 3 3 3 3 3 3 1 No bonding 2 G...

Page 14: ...4 2 1 S 9 KC3 KI9 12 13 14 KC4 16 1 2 3 4 5 GND 7 8 LL1 GND GND 3 Capacitor Chip Cbat Capacitor Chip Cxt Transistor Tr3 Transistor Tr1 Transistor Rcp Transistor Rbat Transistor Tr2 Diode Di2 LED3 Diod...

Page 15: ...3 Xtal3 2 1 S 9 KC3 KI9 12 13 14 KC4 16 1 2 3 4 5 GND 7 8 LL1 GND GND 3 Capacitor Chip Cbat Capacitor Chip Cxt Transistor Tr3 Transistor Tr1 Transistor FET Transistor Rcp Transistor Rbat Transistor Tr...

Page 16: ...28 7227 0294 26 7201 9249 22 1013 4221 16 1010 6512 11 1002 7903 15 1010 6521 3a 7640 6322 3b 7640 6222 13 1011 7191 12 7231 1777 23 1010 6520 7 7640 6260 2 1010 6522 8 1006 5657 Battery Storage CTL16...

Page 17: ...15 ANALOG BLOCK MODULE QW 2727 2730 20 7228 0511 10 1010 3618 9 1010 3617...

Page 18: ...SS Y Q371418 1 QW 2727YCSA 2730YCSA Common 1 A 10 1010 3618 COIL ASS Y Q371419 1 QW 2727YCSA 2730YCSA Common 1 A 11 1002 7903 CONTACT BATTERY Q39603B 1 QW 2727YCSA 2730YCSA Common 1 C 12 7231 1777 HOL...

Page 19: ...Check 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 the D b...

Page 20: ...atch more than two seconds 4 Check the display indicates as figure 3 If 88 is not appeared on the display disassemble again the module and check the contact spring between the Solar cell and PCB 3 To...

Page 21: ...e Home City code is selected correctly To perform MANUAL time calibration signal reception OK There is a possibility of location bad To perform AUTO time calibration signal reception Replace the PCB a...

Page 22: ...CASIO TECHNO CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan Ver 1 Correction of page 14 and 16...

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