Related Manuals for Casio QW-2461
Summary of Contents for Casio QW-2461
- Page 1 ERVICE ANUAL & PARTS LIST REF. NO. S/M-757 NOV. 2001 MODULE NO. QW-2461 BGM-220LV INDEX (WITHOUT PRICE)
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Page 2: Table Of Contents
CONTENTS Page 1. SPECIFICATIONS: QW-2461 ..............1 2. OPERATION CHART: QW-2461 ..............2 3. DRAWINGS: QW-2461 3-1. LCD DIAGRAM ..................... 5 3-2. CIRCUIT DIAGRAM ..................6 3-3. CHECKING TERMINALS AND COMPONENT..........7 4. EXPLODED VIEW: QW-2461 ..............8 5. PARTS LIST: QW-2461 ................9 6. -
Page 3: Specifications: Qw-2461
1. SPECIFICATIONS: QW-2461 Item Detail Battery CR1620 Battery life Approx. 1.5 years 3.94 µA maximum Current consumption Alarm system Piezo plate on Back cover ±15 sec./month Accuracy Accuracy setting system Trimmer capacitor Accuracy checking See page 10 Functions • Shock resistant •... -
Page 4: Operation Chart: Qw-2461
2. OPERATION CHART: QW-2461 General Guide • Press C to change from mode to mode. • If you do not perform any operation for a few minutes while a setting screen • Pressing E in any mode besides the Alarm Mode illuminates to the display (with flashing digits) is on the display, the watch automatically exits the setting for about three seconds. - Page 5 To set the target date To set the alarm time for other days 1. In the Day Counter Mode, press D to display a record number you want to 1. While in the alarm Mode, press D to display the alarm number you want to set.
- Page 6 Stopwatch Mode Memo Mode The stopwatch Mode lets you measure elapsed time, The Memo Mode lets you store up to five memos, Mode indicator Mode indicator split times, and two finishes. The range of the each with an eight-character title and 16 characters Current time stopwatch is 23 hours, 59 minutes, 59.99 seconds.
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Page 7: Drawings: Qw-2461
3. DRAWINGS: QW-2461 3-1. LCD DIAGRAM DAYS COM. COM. L C 2 L C 1 L C 3 L C 4 L C 5 L C 6 L C 7 L C 8 L C 1 L C 2 L C 3... -
Page 8: Circuit Diagram
3-2. CIRCUIT DIAGRAM EEPROM Xtal SDI*1 LD2*1 SCUT L1 , L2 * 1 CSB*1 EMP*1 L51 ~ L52 * 1 TOTAL 107 PINS BONDING 97 PINS KC5*1 VREF1 Display GNDA Others VREF VDD2A LD1*1 VDD2 VDSP VDD3 VDD1 CLF2 BACK FRONT VOUT CLF1... -
Page 9: Checking Terminals And Component
3-3. CHECKING TERMINALS AND COMPONENT 7. Cushion/6 Capacitor/Chip C3 Capacitor/Chip Transistor (7211 0064) Xtal 4. Oscillator/Crystal C4 Capacitor/Chip CT 3. Capacitor/Trimmer (1004 1131) (1001 0950) Diode C9 Capacitor/Chip C2 Capacitor/Chip Memory/ External VREF VDD2 VREF VDD2 VDD2 SCUT VDSP VDD1 VDD3 PCB WITH LSI VDSP... -
Page 10: Exploded View: Qw-2461
4. EXPLODED VIEW: QW-2461 1 (1006 5673) 12 (1006 5672) 2 (1006 5674) 14 (7230 0616) 9 (1002 1815) PCB (Unrepairable) 5 (1002 7903) 13 (7230 0623) 11 (7233 2629) Battery/Lithium (CR1620) 8 (7231 1885) 10 (7229 0790) — 8 —... -
Page 11: Parts List: Qw-2461
5. PARTS LIST: QW-2461 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 12: Precautions For Repair: Qw-2461
6. PRECAUTIONS FOR REPAIR: QW-2461 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 13 CASIO TECHNO CO.,LTD. Overseas Service Division Nishi-Shinjuku Kimuraya Bldg. 1F 5-25, Nishi-Shinjuku 7-Chome Shinjuku-ku, Tokyo 160-0023, Japan...