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E-72
• 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-69), 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-73
Troubleshooting
Hand Movement and Position
■
I lost track of what mode the watch is in.
Refer to “Selecting a Mode” (page E-24). Pushing the crown back in and lock it. Next, hold down
B
for
about two seconds to return to the Timekeeping Mode.
■
The
c
Second Hand
is jumping at two-second intervals.
■
All the watch’s hands are stopped at 12 o’clock and none of the buttons work.
Power may be low. Expose the watch to light until the
c
Second Hand
starts moving smoothly, at
one-second intervals (page E-12).
■
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 E-15).
• The time setting is being adjusted following a successful auto time calibration signal receive operation
(page E-16).
• 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.
E-74
■
Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-13). Do not perform any operation until the hands
return to their normal positions (in about 15 minutes). The hands should return to their correct positions
when normal operation returns. To help power recover, leave the watch in a location where it is exposed
to light.
■
The current time setting is off by hours.
Your Home City setting may be wrong. Check your Home City setting and correct it, if necessary (page
E-27).
■
The current time setting is off by one hour.
• The current standard time (STD)/summer time (DST) is wrong (page E-28).
• 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 E-29) to change the
STD
/
DST
setting.
■
The hands and/or day indications are off.
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 E-66).
■
Nothing happens when I press a button.
Button operation may become disabled after you perform a crown operation. If this happens, rotate the
crown slightly to correct the problem.
E-75
Crown Operations
■
Nothing happens when I rotate the crown while it is pulled out.
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 re-enable
operation.
See “Using the Crown” (page E-3).
Operation Tone
■
The operation tone does not sound when it should.
Battery power is low. Expose the watch to light to charge it. See “Charging the Watch” (page E-11).
E-76
Sensor modes
■
An error is indicated during sensor operation.
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.
30 30 30 30
Digital Compass
Mode
Altimeter
Mode
Barometer
Mode
Thermometer
Mode
• 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.
E-77
■
What causes incorrect direction readings?
• 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.
■
What causes different direction readings to produce different results at the same location?
• Magnetism generated by nearby digital noise sources (such as high-tension power lines) can interfere
with the detection of terrestrial magnetism. Move away from the source of the digital noise and try
again.
■
Why am I having problems taking direction readings indoors?
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 diffi cult inside ferro-concrete structures. Remember that you will
not be able to take direction readings inside of trains, airplanes, etc.
Charging
■
The watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 3 (page E-12). Continue exposing the watch to light
until the
c
Second Hand
starts moving smoothly (at one-second intervals).
■
The
c
Second Hand
starts to move at one-second intervals, but then suddenly returns to jumping
at two-second intervals.
The watch probably is not suffi ciently charged yet. Continue keeping it exposed to light.
E-78
Time Calibration Signal
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
performing a button operation during the signal
receive operation.
• The watch is in an area with poor reception
conditions.
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
E-18
You are in an area where signal reception is not
possible for some reason.
See “Approximate Reception Ranges”. E-17
The calibration signal is not being transmitted for
some reason.
• Check the website of the organization that
maintains the time calibration signal in your area
for information about its down times.
• Try again later.
—
■
The current time setting changes after I set it manually.
You may have the watch confi gured for Auto Receive of the time calibration signal (page E-21), which will
cause the time to be adjusted automatically according to your currently selected Home City. If this results
in the wrong time setting, check your Home City setting and correct it, if necessary (page E-27).
E-79
■
Auto Receive is not performed or I cannot perform Manual Receive.
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.
E-24
Your Home City setting is wrong.
Check your Home City setting and correct it, if
necessary.
E-27
There is not enough power for signal reception. Expose the watch to light to charge it. E-11
■
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.
E-27
The date and time settings may have been affected
by strong magnetism or impact.
Adjust the home positions of the hands and day
indicator.
E-66
Alarm
■
The alarm does not sound.
• The alarm is turned off. Turn on the alarm (page E-64).
• Power may be low. Expose the watch to light until the
c
c
Second Hand
starts moving smoothly, at
one-second intervals (page E-12).
• 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
E-63).
Operation Guide 5242