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Operation Guide 5311
E-89
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-16). Continue exposing
the watch to light until the
x
Second Hand starts moving normally (at one-second
intervals).
■ The
x
Second Hand starts to move at one-second intervals, but then suddenly
returns to moving at two-second intervals.
The watch probably is not suffi ciently charged yet. Continue keeping it exposed to
light.
Time Calibration Signal
The information in this section applies only when LONDON (LON), PARIS (PAR),
ATHENS (ATH), HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX),
DENVER (DEN), CHICAGO (CHI), NEW YORK (NYC), HONG KONG (HKG), or
TOKYO (TYO) is selected as the Home City. You need to adjust the current time
manually when any other city is selected as the Home City.
E-88
■ What causes incorrect direction readings?
x The watch may have been exposed to magnetism. Calibrate the direction sensor.
x 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?
x 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.
E-87
■ Abnormal magnetism detection is indicated.
x Move the watch away from magnetic accessories,
electric devices, computers, and any other devices
that generate strong magnetism, and try performing the
sensor operation again.
x If abnormal magnetism detection is indicated again,
it may mean that the watch case may have become
magnetized or that magnetism conditions are completely
different from those where you last performed
bidirectional calibration. Perform bidirectional calibration
using the procedure under “To perform bidirectional
calibration” (page E-56).
Whenever you have a sensor malfunction, take the watch to your original dealer or
nearest authorized CASIO distributor as soon as possible.
Digital Compass Mode
E-86
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 how sensor mode errors are
indicated.
x During digital compass operations, nearby strong
magnetism can cause an error to be indicated.
x 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.
Digital Compass Mode
E-85
x The period when summer time is applied in the location where you are using the
watch may be different from the period set for your currently selected Home City.
Use the procedure under “To switch between standard time and summer time
manually” (page E-39) to switch from AT (AUTO) to STD (for standard time) or DST (for
summer time).
■ The time and date settings 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 indicator alignment. Adjust the
watch’s hand and day indicator home position alignment (page E-79).
E-84
x The time setting is being adjusted following a successful auto time calibration
signal receive operation (page E-20).
■ Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-17). 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.
x Your Home City setting may be wrong. Check your Home City setting and correct it,
if necessary (page E-36).
■ The current time setting is off by one hour.
x If you are using the watch in an area where time calibration signal reception is
possible, see “To confi gure Home City settings” (page E-36).
E-83
Troubleshooting
Hand Movement and Position
■ I lost track of what mode the watch is in.
Refer to “Mode Reference Guide” (page E-32). To return directly to the Timekeeping
Mode, hold down C at least two seconds.
■ The
x
Second Hand is moving at two-second intervals.
■ All the watch’s hands are stopped at 12 o’clock and none of the buttons work
(
x
Second Hand stopped at 57, 58, 59, or 00).
Power may be low. Expose the watch to light until the
x
Second Hand starts moving
normally, at one-second intervals (page E-16).
■ 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.
x The watch is recovering from a sleep state (page E-19).
E-82
3. Press C.
x This enters the
n
Day Indicator home position
adjustment mode.
4. Check the
n
Day Indicator to confi rm that it is 1, which
is its home position.
x If the 1 is not in the center of the
n
Day Indicator,
rotate the crown to center it.
x Rotating the crown three full consecutive turns
clockwise will cause the
n
Day Indicator to start
changing in a forward direction (increment).
x To stop
n
Day Indicator movement, press any button.
5. Push the crown back in to return to the Timekeeping Mode.
x This will cause the hands to return to their normal positions and resume regular
timekeeping. Wait until everything stops moving before performing any other
operation.
6
E-81
To adjust home positions
1. Pull out the crown.
2. Hold down B for at least fi ve seconds until the watch
beeps and the
x
Second Hand moves to 12 o’clock.
x Automatic home position adjustment of all of the
hands (but not the
n
Day Indicator) will start.
x If all hands are at 12 o’clock (the proper home hand
home position), advance directly to step 3.
x If the
v
Upper Dial Hand is not pointing at 24, which
is its home position, hold down A for about two
seconds to move it there.
6
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E-80
Manual Home Position Adjustment
Perform the procedure in this section if auto home position adjustment is not possible
for some reason.
x Hand home position adjustment is not required if the time and day settings are
correct.
Note
x Any time after you enter the home position adjustment mode in step 2 of the
following procedure, you can return to the Timekeeping Mode by pushing the
crown back in. In this case, any adjustments you made before the watch returned
to the Timekeeping Mode will be applied.
x If you do not perform any operation with the crown for about two minutes after
pulling it out, crown operations will become disabled and hands will not move if you
rotate the crown. If this happens, push the crown back in and then pull it out again.