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CONTENTS

Page

1. SPECIFICATIONS: MODULE QW-2727/2730 ........................................... 1

2. OPERATION CHART: MODULE QW-2727 ............................................... 2

3. DRAWINGS: MODULE QW-2727/2730

3-1. LCD DIAGRAM ............................................................................................. 9

3-2. CIRCUIT DIAGRAM ..................................................................................... 10

3-3. CHECKING 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 REMOVING OF MODULE ..................................... 17

6-2. ACCURACY CHECKING ............................................................................. 17

6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING .................................... 18

6-4. HOW TO CHECK TILT SENSOR................................................................. 18

7. TROUBLESHOOTING: MODULE QW-2727/2730 .................................... 19

Содержание WVA-400D

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...