1. SPECIFICATIONS: QW-2140 Item Detail Battery CR1620 Battery life Approx. 2 years 2.2 µA maximum Current consumption Alarm system Piezo plate on Back cover ±15 sec./month Accuracy Accuracy setting system Trimmer capacitor Accuracy checking See page 11 Functions •Electro-luminescent backlight •Accuracy at normal temperature: ±...
2. OPERATION CHART: QW-2140 ABOUT THIS MANUAL • Button operations are indicated using the letters shown • Each section of this manual provides you with the information you need to perform in the illustration. operations in each mode. Further details and technical information can be found in the “REFERENCE”...
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To perform manual time calibration signal reception To view Alarm Mode screen In the Alarm Mode, use B and D to cycle through the alarm screens as shown 1. Place the watch on a stable surface to its top (12 o’clock side) is facing in the general direction of below.
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Press D. To create a new Telememo record 1. In the Telememo Mode, press B or D until a record Press B. showing the name “NEW” (indicating the new record input screen) appears. • A Day Counter Number screen remains on the display for about two seconds, after •...
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• Radio interference can make signal reception impossible. REFERENCE • Strong electrostatic charge can result in the wrong time being set. • The daily alarm and hourly time signal do not operate during signal reception. This section contains more detailed and technical information about watch operation. •...
MODULE/WITHOUT MOVEMENT QW-2140YC-01 FKT-300-1V MODULE/WITHOUT MOVEMENT QW-2140YC-03 FKT-300D-7V < The module QW-2140 is "built-in type" which is assembled directly to the case, therefore the module as the spare parts is not available. > 1002 7257 LCD C2140-01P QW-2140YC-01 1002 7274 LCD...
6. PRECAUTIONS FOR REPAIR: QW-2140 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.
6-3. IMPROVING SIGNAL RECEPTION To improve signal reception, put the watch as shown in the illustrations. (Display: up) Resin Band Metal Band Pass through band loop. — 12 —...
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CASIO TECHNO CO.,LTD. Overseas Service Division Nishi-Shinjuku Kimuraya Bldg. 1F 5-25, Nishi-Shinjuku 7-Chome Shinjuku-ku, Tokyo 160-0023, Japan...