Casio QW-4302 Service Manual Download Page 2 | Manualshive

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Casio QW-4302 Service Manual Download Page 2

CONTENTS

Page

1. SPECIFICATIONS: MODULE QW-4302 .................................................... 1

2. DRAWINGS: MODULE QW-4302

2-1. LCD DIAGRAM ............................................................................................. 2

2-2. CHECKING TERMINALS AND COMPONENTS .......................................... 3

3. EXPLODED VIEW: MODULE QW-4302 .................................................... 4

4. PARTS LIST: MODULE QW-4302 ............................................................. 5

5. PRECAUTIONS FOR REPAIR: MODULE QW-4302

5-1. AC (ALL CLEAR) AND REMOVING OF MODULE ...................................... 7

5-2. ACCURACY CHECKING .............................................................................. 7

5-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING ..................................... 8

5-4. HOW TO CHECK TILT SENSOR .................................................................. 9

5-5. TIME CALIBRATION SIGNAL TEST MODE ................................................ 9

6. TROUBLESHOOTING: MODULE QW-4302 ............................................. 10

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Summary of Contents for QW-4302

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 4302 MODULE NO R REF NO S M 978 NOV 2006 MRG 7000DJ ...

Page 2: ...ENTS 3 3 EXPLODED VIEW MODULE QW 4302 4 4 PARTS LIST MODULE QW 4302 5 5 PRECAUTIONS FOR REPAIR MODULE QW 4302 5 1 AC ALL CLEAR AND REMOVING OF MODULE 7 5 2 ACCURACY CHECKING 7 5 3 SOLAR CELL PCB ASS Y CONTACT CHECKING 8 5 4 HOW TO CHECK TILT SENSOR 9 5 5 TIME CALIBRATION SIGNAL TEST MODE 9 6 TROUBLESHOOTING MODULE QW 4302 10 ...

Page 3: ... Auto receive Manual receive Last date time received display Time Calibration Signal 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 Dual time 1 100 sec stopwatch Measuring capacity 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Daily alarms ...

Page 4: ... b2 b1 b0 g3 g2 g1 g0 e3 e2 e1 e0 c3 c2 c1 c0 d3 d2 d1 d0 rc0 rc1 rc2 a_light charge recover snz dst L29 L11 L12 L13 L14 L15 L16 LC2 LC3 LC4 LC5 LC1 L10 L 9 i5 j5 dst a_light recover g5 d5 snz a5 charge COM SEG LC2 LC3 LC4 LC5 LC1 COM SEG c2 d3 g3 f3 f0 a3 e3 b2 e0 g2 d2 d4 b5 a2 f2 col1 c5 e2 col0 d0 c3 b3 point0 hyp0 g0 a0 SEG COM L30 rc2 k5 h5 L17 L18 L19 f4 c1 e4 rc0 g4 d1 f1 e1 b4 c4 h4 a1 g1...

Page 5: ...l6 VDD2 GND GND GND GND R2 R3 R1 N1 GND Kl8 N2 VDD2 L16 L6 L15 R1 GND LC1 LC4 LC5 L26 L21 L22 L23 L24 L25 L12 L5 L1 LED2 CCP VDD1 GND VDD2 Kl3 GND GND RPM LED1 L1 KC2 L L2 L1 L L3 L11 L27 L28 L9 L10 L14 L13 L4 L1 XTB XT Kl4 L7 L8 GND KI5 KI2 GND VSC GND VSC Rxt2 Rxt3 Rxt3 P7 Rxt2 VSC VC1 VDSP VC1 SCIN R GND GND R KI5 KI3 VDD2 VCH AC SCIN KI5 GNDB VDD2 KI2 GND VSC VDSP LED2 GND LD1 GND LED1 SCIN GN...

Page 6: ...72019599 7 10016598 3 76409062 21 10123230 19 72078349 25 10124961 27 10197474 13 10124962 29 72270343 2 10199933 31 10214214 30 72270294 24 10124960 9 10097687 21 10123230 6 10168959 18 10181225 15 10106512 1 76409146 14 10124963 17 10172627 23 10106509 22 10124956 16 10164777 PCB Ass y 5 10065657 Battery storage CTL1616 8 10022106 ...

Page 7: ... and stocked appropriately in consideration of your parts usage anre repair usage for similar models MAIN PARTS Item Code No Parts Name Specification Q TY R 1 76409050 MODULE WITH MOVEMENT QW 4302YC 01TK 1 A 1 76409146 ANALOG BLOCK QW 4302MV 82TK 1 A 2 10199933 LCD S4302 01TH 1 A 3 76409062 PCB ASS Y RJQ522137 002V01TK 1 A MINOR PARTS Item Code No Parts Name Specification Q TY R 1 4 76408261 ANTEN...

Page 8: ...30 1 Q470503 1 1 C 24 10124960 SPRING COIL 2763 1 Q471262 1 2 C 25 10124961 SPRING COIL 2763 2 Q471263 1 4 C 26 72019599 SPRING COIL 967 1 Q430081 1 1 C 27 10197474 SPRING LEAF Q373125 1V03 1 C 28 10169526 TAPE ADHESIVE 3707 RJQ521248 001V01 1 C 29 72270343 WASHER 1325 Q450447 1 1 C 30 72270294 WASHER 745 Q436294A 1 1 C 31 10214214 WHEEL HOUR 4302 RJQ528472 001V01 1 C For the prices and minimum or...

Page 9: ...he 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 B 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 10: ...he watch on the desk 2 Check the display indicates as figure 2 3 Display side down and place the watch on the desk more than two seconds Or go to a dark room and place the watch more than two seconds 4 Check the display indicates as figure 3 If 8888 is not appeared on the display disassemble again the module and check the contact spring between the Solar cell and PCB 3 To exit from TEST mode Press...

Page 11: ...TEST MODE 1 Press B C and D button at the same time to enter the test mode 2 Press A button to switch from one signal source to another J40 Fukushima Japan Call Sign JJY Frequency 40kHz J60 Fukuoka Saga Japan Call Sign JJY Frequency 60kHz W60 Fort Collins Colorado Call Sign WWVB Frequency 60kHz 3 Press B button to start signal reception Figure 4 Figure 5 Tilt the watch towards you more than 40 Mor...

Page 12: ...ome 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 ass y Signal reception OK Signal reception OK Signal reception OK OK OK No Yes No Replace the Antenna ass y Signal reception OK OK ...

Page 13: ...CASIO COMPUTER CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan ...

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