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Casio QW-2957 Service Manual And Parts List

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S
M
ERVICE
ANUAL
& PARTS LIST
REF. NO. S/M-906
AUG. 2005
MODULE NO.
QW-2957
G-7600
Ver.1 : Sep. 2005
INDEX
(WITHOUT PRICE)
R

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Summary of Contents for Casio QW-2957

  • Page 1 ERVICE ANUAL & PARTS LIST REF. NO. S/M-906 AUG. 2005 MODULE NO. QW-2957 G-7600 Ver.1 : Sep. 2005 INDEX (WITHOUT PRICE)

  • Page 2: Table Of Contents

    CONTENTS Page 1. SPECIFICATIONS ..................1 2. OPERATION CHART: MODULE QW-2957 ..........2 3. DRAWINGS: 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.

  • Page 3: Specifications

    1. SPECIFICATIONS: MODULE QW-2957 Item Detail Battery CR2016 Battery life Approx. 5 years 1.4 µA maximum Current consumption Alarm system Piezo plate on Back cover ±15 sec./month Accuracy Accuracy setting system Chip capacitor selection Accuracy checking See page 11 Functions: •...

  • Page 4: Operation Chart: Module Qw-2957

    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.
  • Page 5 To recall e-DATA MEMORY records World Time In the e-DATA MEMORY Mode, use D (+) and B (–) to cycle through e-DATA MEMORY records as shown below. World Time shows the current time in 27 cities (29 time City code zones) around the world.
  • Page 6 • Pressing B and D at the same time while any setting is flashing automatically To set up the countdown timer sets the time to AM12:00 and the date to . It also clears any text that is input 1. While the countdown start time is on the display in the x-xx Countdown Timer Mode, hold down A until the hour for the alarm.
  • Page 7 To turn the auto light switch on and off Auto light switch precautions • Wearing the watch on the inside of your wrist and movement or vibration of your arm In the Timekeeping Mode, hold down L for about one second to toggle the auto light switch on ( displayed) and off ( not displayed).

  • Page 8: Drawings: Module Qw-2957

    3. DRAWINGS: MODULE QW-2957 3-1. LCD DIAGRAM AUTO DST0 COL0 COL1 ALM0 DST1 SNZ1 COM. COM. SEG. SEG. X0Y0 X0Y1 X0Y2 X0Y3 X0Y4 X1Y0 X1Y1 X1Y2 X1Y3 X1Y4 X2Y0 X2Y1 X2Y2 X2Y3 X2Y4 X3Y0 X3Y1 X3Y2 X3Y3 X3Y4 X4Y0 X4Y1...

  • Page 9: Circuit Diagram

    3-2. CIRCUIT DIAGRAM LCD (4.5V 1/3b 1/5d) L3 - - - - - - L52 LC1 - - - LC5 LD2KC2 TOTAL 93PINS LD3KC3 BONDING 87PINS Xtal GND VDD2 VDD1 VDD3 VC1 VC2 VOSC L– CLF2 BACK VOUT CLF1 FRONT 1.

  • Page 10: Checking Terminals And Component

    3-3. CHECKING TERMINALS AND COMPONENTS VDD3 L– VDD2 VDD1 Short pad for N trimming VOUT N1 N1 12. PCB ASS'Y VOSC (76409012) LD2KC2 CLF1 LD2KC2 CLF2 LD2KC2 LD3KC3 LD3KC3 LED1 Short pad for switching modules CUSHION 6 (72110064) VDD3 L– VDD2 CUSHION 506 VDD1...

  • Page 11: Exploded View: Module Qw-2957

    4. EXPLODED VIEW: MODULE QW-2957 5 (10097687) 10a (10193878) 10b (10193879) 8 (10201005) 9 (10201006) 6 (10201012) 17 (10208889) 16 (10201009) 12 (76409012) PCB ass'y 2 (72360283) 15 (72019599) Battery/Lithium (CR2016) 7 (10076070) 14 (72330952) — 9 —...

  • Page 12: Parts List: Module Qw-2957

    5. PARTS LIST: MODULE QW-2957 Note: 1. Prices and specifications are subject to change without prior notice. 2. Spare parts are classified as follows according to their importance in after-sales service. A Rank ---------------------------------------- Very Important B Rank ---------------------------------------- Important C Rank ---------------------------------------- Less important 3.

  • Page 13: Precautions For Repair: Module Qw-2957

    6. PRECAUTIONS FOR REPAIR: MODULE QW-2957 6-1. AC (ALL CLEAR) AND REMOVING OF MODULE 1. Perform AC (ALL CLEAR) when inserting a new battery, or else the memories and/ or counters may give erratic displays. Touch the AC contact and the negative (–) side of the main plate with the metallic tweezers.
  • 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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