Operation Guide 5242
•Illumination may not turn on if the face of the watch is more than 15 degrees above or below parallel. Make sure that the back of your hand is parallel to the ground.
•Illumination turns off after the preset illumination duration (page
•Static electricity or magnetic force can interfere with proper operation of the auto light switch. If illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards your face again. If this does not work, drop your arm all the way down so it hangs at your side, and then bring it back up again.
•You may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.
Troubleshooting
Hand Movement and Position■I lost track of what mode the watch is in.Refer to “Selecting a Mode” (page
Power may be low. Expose the watch to light until the c Second Hand starts moving smoothly, at
■The hands of the watch suddenly start moving at high speed, even when I do not perform any operation.
This could be due to any one of the following causes. In all cases, the hand movement does not indicate malfunction, and should stop shortly.
•The watch is recovering from a sleep state (page
•The time setting is being adjusted following a successful auto time calibration signal receive operation (page
•The watch is returning to the Timekeeping Mode from another mode.
■Hand movement is abnormal.The watch is auto correcting hand positions. Normal hand movement will resume after the correction process is complete.
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The watch may be in the power recovery mode (page
Your Home City setting may be wrong. Check your Home City setting and correct it, if necessary (page
•The current standard time (STD)/summer time (DST) is wrong (page
•If you are using in the watch in an area where time calibration signal reception is not possible, you may need to change your Home City’s STD (standard time)/DST (daylight saving time) setting manually. Use the procedure under “To select Auto or Manual Standard Time/Daylight Saving Time Switching” (page
This could indicate that the watch has been exposed to magnetism or strong impact, which has caused problems with proper hand and day alignment. Adjust the watch’s hand and day home position alignment (page
Button operation may become disabled after you perform a crown operation. If this happens, rotate the crown slightly to correct the problem.
You did not perform any operation for more than three minutes while the crown was pulled out, causing operation to become disabled automatically. Push the crown in and pull it back out again to
See “Using the Crown” (page
Battery power is low. Expose the watch to light to charge it. See “Charging the Watch” (page
Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal circuitry. When this happens an error is indicated and the sensor operation cannot be performed. The illustrations below show how errors are indicated in each sensor mode.
•The watch may have been exposed to magnetism. Calibrate the direction sensor.
•A nearby source of strong magnetism, such as a household appliance, a large steel bridge, a steel beam, overhead wires, etc., or an attempt to perform direction measurement on a train, boat, etc. Move away from such objects and try again.
Digital Compass | Altimeter | Barometer | Thermometer |
Mode | Mode | Mode | Mode |
30 | 30 | 30 | 30 |
•During digital compass operations, nearby strong magnetism can cause an error to be indicated.
•If the error is indicated during a measurement, restart the measurement. If an error is indicated when you restart the measurement, it probably means that there is a problem with the sensor or internal circuitry.
Whenever you have a sensor malfunction, take the watch to your original dealer or nearest authorized CASIO distributor as soon as possible.
■What causes different direction readings to produce different results at the same location?
•Magnetism generated by nearby digital noise sources (such as
A TV, personal computer, speakers, or some other object is interfering with terrestrial magnetism readings. Move away from the object causing the interference or take the direction reading outdoors. Indoor direction readings are particularly difficult inside
This can happen after the power level drops to Level 3 (page
■The c Second Hand starts to move at
The watch probably is not sufficiently charged yet. Continue keeping it exposed to light.
The information in this section applies only when LON (LONDON), PAR (PARIS), ATH (ATHENS), HNL (HONOLULU), ANC (ANCHORAGE), LAX (LOS ANGELES), DEN (DENVER), CHI (CHICAGO), NYC (NEW YORK), HKG (HONG KONG), or TYO (TOKYO) is selected as the Home City. You need to adjust the current time manually when any other city is selected as the Home City.
■The c Second Hand indicates N (NO) when I check the result of the latest receive operation.
Possible Cause | Remedy | Page | |
• You are wearing or moving the watch, or |
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performing a button operation during the signal | Keep the watch in an area where reception |
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receive operation. | conditions are good while the signal receive | ||
• The watch is in an area with poor reception | operation is being performed. |
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conditions. |
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You are in an area where signal reception is not | See “Approximate Reception Ranges”. | ||
possible for some reason. | |||
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| • Check the website of the organization that |
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The calibration signal is not being transmitted for | maintains the time calibration signal in your area | — | |
some reason. | for information about its down times. | ||
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| • Try again later. |
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You may have the watch configured for Auto Receive of the time calibration signal (page
Possible Cause | Remedy | Page | |
The watch is not in the Timekeeping Mode. | Auto Receive will not be performed if the watch is | ||
not in the Timekeeping Mode. | |||
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Your Home City setting is wrong. | Check your Home City setting and correct it, if | ||
necessary. | |||
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There is not enough power for signal reception. | Expose the watch to light to charge it. |
■Time calibration signal reception is successful, but the time and date settings are wrong.
Possible Cause | Remedy | Page | |
Your Home City setting is wrong. | Check your Home City setting and correct it, if | ||
necessary. | |||
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The date and time settings may have been affected | Adjust the home positions of the hands and day | ||
by strong magnetism or impact. | indicator. | ||
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•The alarm is turned off. Turn on the alarm (page
•Power may be low. Expose the watch to light until the c Second Hand starts moving smoothly, at
•The crown may be pulled out. Push the crown back in.
•The a.m. (A)/p.m. (P) setting of the watch may be wrong. See “To change the alarm time setting” (page