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Illumination Precautions
•
The LED that provides illumination loses power after very long use.
•
Illumination may be hard to see when viewed under direct sunlight.
•
Illumination turns off automatically whenever an alarm sounds.
•
Frequent use of illumination runs down the battery.
Auto light switch precautions
•
Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can
cause frequent activation of the auto light switch and illumination of the display. To avoid running down
the battery, turn off the auto light switch whenever engaging in activities that might cause frequent
illumination of the display.
•
Note that wearing the watch under your sleeve while the auto light switch is turned on can cause
frequent illumination of the display and can run down the battery.
•
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 E-85), even
if you keep the watch pointed towards your face.
•
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.
E-88
Troubleshooting
Time Setting
■ The current time setting is off by hours.
Your Home City setting may be wrong (page E-24). Check your Home City setting and correct it, if necessary.
■ The current time setting is off by one hour.
You may need to change your Home City's standard time/daylight saving time (DST) setting. Use the
procedure under "To change the current time and date settings" (page E-26) to change the standard time/
daylight saving time (DST) setting.
Altitude Readings
■ Altitude readings produce different results at the same location.
■ Readings produced by the watch are different from the elevation and/or sea level altitude
indications in my area. (Negative sea level altitude values are produced in a location where the
indicated elevation is a positive value.)
■ I can't get correct altitude readings.
Relative altitude is calculated based on changes in barometric pressure measurement by its pressure
sensor. This means that barometric pressure changes can cause readings taken at different times at the
same location to be different. Also note that the value displayed by the watch may be different from the
actual elevation and/or sea level elevation indicated for the area where you are located.
When using the watch's altimeter while mountain climbing, you need to be sure to perform regular
calibration in accordance with the local altitude (elevation) indications.
For more information, see "To specify a reference altitude value" (page E-46).
E-90
■ ERR appears following bidirectional calibration.
If the screen displays hyphens (- - -) followed by the ERR (error) indicator, it could mean there is
something wrong with the sensor.
•
Wait for about one second for the ERR indicator to disappear from the display, and then calibrate the
sensor again.
•
If ERR continues to appear even after multiple attempts to calibrate, contact your original retailer or
CASIO service center.
■ The direction information indicated by the watch is different from that indicated by a backup
compass.
•
Move away from any potential source of strong magnetism, perform bidirectional calibration, and then
try taking a reading again. For more information, refer to "To perform bidirectional calibration" (page E-37)
and "Location" (page E-40).
■ Direction readings produce different results at the same location.
•
Move away from any potential source of strong magnetism and try taking a reading again. See
"Location" (page E-40).
■ I am having problems taking direction readings indoors.
•
Move away from any potential source of strong magnetism and try taking a reading again. See
"Location" (page E-40).
Whenever you have a sensor malfunction, take the watch to your original retailer or nearest authorized
CASIO distributor as soon as possible.
E-92
Charging
■ The watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 5 (page E-14). Keep the watch exposed to light until it
recharges suffi ciently.
■ RECOVER is fl ashing on the digital display.
The watch is in the charge recovery mode. Wait until the recovery process is complete (about 15 minutes).
The watch will recover more quickly if you place it in a brightly lit location.
Note
•
Performing repeated illumination and/or sensor reading operations over a short time period can cause
a sudden drop in watch's charge. This will cause the watch to enter the charge recovery mode. The
watch is in the charge recovery mode when RECOVER is fl ashing on the digital display. The charge
recovery mode is the same as a low battery charge state, access to some functions is limited while the
watch charge is recovering. Normal operation will resume after recovery is complete. For more
information, refer to "Power Recovery Mode" (page E-16).
•
A fl ashing CHARGE indicator means that the charge level of the watch has suddenly dropped.
Immediately expose the watch to light to charge it.
E-94
Operation Guide 5545
Other Settings
The button operation tone sounds any time you press one of the watch's buttons. You can turn the button
operation tone on or off as desired.
To turn the button operation tone on or off
1. In the Timekeeping Mode, pull out the crown.
2. Press B twice. This will cause the current button operation tone setting (KEY or MUTE) to fl ash on
the digital display.
3. Rotate the crown to select either on (KEY ) or off (MUTE) for the button operation tone setting.
4. Push the crown back in.
To turn Power Saving on or off
1. In the Timekeeping Mode, pull out the crown.
2. Press B six times. This will cause P.SAVE to appear on the digital display, along with the fl ashing
current Power Saving setting (ON or OFF).
3. Rotate the crown to select either on (ON) or off (OFF) for the Power Saving setting.
4. Push the crown back in.
■ Following a relative altitude reading, the watch's second hand points to 9 o'clock.
•
The reading value is outside of the allowable measurement range (page E-44).
•
This could indicate sensor error. If ERR (error) is on the digital display, refer to "Direction, Altitude,
Barometric Pressure, and Temperature Readings" (page E-93) for more information.
Taking Direction Readings
■ Abnormal magnetism detection is indicated.
•
Move away from any potential source of strong magnetism and try
taking a reading again.
•
If abnormal magnetism is detected again when you retry, it could mean
that the watch itself has become magnetized. If this happens, continue
to keep away from the source of strong magnetism, perform
bidirectional calibration, and then try taking a reading again. For more
information, refer to "To perform bidirectional calibration" (page E-37) and
"Location" (page E-40).
■ ERR appears on the digital display during sensor reading operations.
There is something wrong with the sensor. This could be due to nearby strong magnetic force. Move
location where magnetism is not present and try again. If, after multiple retries, ERR keeps appearing,
contact your original retailer or CASIO service center. See "Location" (page E-40).
Barometric Pressure Readings
■ Following a relative barometric pressure reading, the watch's second hand points to 9 o'clock.
•
The reading value is outside of the allowable measurement range (page E-62).
•
There may be a problem with the sensor. If ERR (error) is on the digital display, refer to "Direction,
Altitude, Barometric Pressure, and Temperature Readings" for more information.
Direction, Altitude, Barometric Pressure, and Temperature Readings
■ ERR appears on the digital display during sensor reading operations.
This indicates that there is a problem with the sensor, making sensor readings impossible.
•
If the error is indicated while a reading operation in progress, restart the operation. If ERR appears
again, it could mean there is something wrong with the sensor.
•
If ERR appears frequently, it could mean that the sensor is faulty. Contact your original retailer or
CASIO service center
■ I can't change the temperature, barometric pressure, and altitude display units.
When TYO (Tokyo) is selected as the Home City, the altitude unit is set automatically to meters (m), the
barometric pressure unit to hectopascals (hPa), and the temperature unit to Celsius (°C). These settings
cannot be changed.
World Time Mode
■ The time for my World Time City is off in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving time. See "To
confi gure World Time City and summer time settings" (page E-82) for more information.
Specifi cations
Accuracy at normal temperature: ±15 seconds a month
Digital Timekeeping: Hour, minutes, seconds, a.m. (A)/ p.m. (P), month, day, day of the week, barometric
pressure change indication
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Three display formats (day of the week, month, day; barometric pressure change, month day;
hour, minute, second); Home City code (can be assigned one of 29 city codes); standard time /
daylight saving time (summer time)
Analog Timekeeping: Hour, minutes (hand moves every 10 seconds), seconds
Digital Compass: 60 seconds continuous reading; 16 directions; Angle value 0° to 359°; Measurement
unit: 1° (digital display)/6° (hand); North indicated by second hand: Compass calibration
(bidirectional, magnetic declination angle)
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E-91
E-93
E-95
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