Specifi Cations; Timekeeping; Troubleshooting - Casio 5423 Operation Manual

Operation Guide 5423

Troubleshooting

Hand Movement and Position
■ I lost track of what mode the watch is in.
Refer to "To select a mode" (page E-30). To return directly to the Timekeeping Mode from
any other mode, hold down C for about 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.
Power may be low. Expose the watch to light until the x Second Hand starts moving
normally, at one-second intervals (page E-11).
E-60
■ The current time setting is off by one hour.
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-32).
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 toggle the Home
City time between standard time and daylight saving time" (page E-34) 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-52).
E-62
■ 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 at the Home City. You need to adjust the current time
manually when any other city is selected as the Home City.
E-64
■ 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-23), 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-32).
■ The current time setting is off by one hour.
Possible Cause Remedy
Perform the operation under "To get ready
for a receive operation". The time setting
will be adjusted automatically as soon as
Signal reception on a day for
signal reception is successful.
switching between STD (standard
time)/DST (daylight saving time) may
If you are unable to receive the time
have failed for some reason.
calibration signal, change the STD
(standard time)/DST (daylight saving time)
setting manually.
E-66
■ Signal reception is being performed successfully, but the time and/or day is
wrong.
Possible Cause Remedy
Check your Home City setting and correct
Your Home City setting is wrong.
it, if necessary.
The watch may have been exposed
to magnetism or strong impact, which Adjust the watch's hand and day home
has caused problems with proper positions.
hand and day alignment.
E-68
■ 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-14).
The time setting is being adjusted following a successful auto time calibration
signal receive operation (page E-16).
■ 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-32).
World Time Mode
■ The World Time indicated by the b Left Dial Hands in the World Time Mode is
one hour off from the actual time in the selected time zone.
The STD (standard time)/DST (daylight saving time) setting of the selected World
Time City may be wrong. Select the correct STD (standard time)/DST (daylight saving
time) setting (page E-48).
■ The World Time indicated by the b Left Dial Hands in the World Time Mode
is off.
Your Home City setting may be wrong. Check your Home City setting and correct it, if
necessary (page E-32).
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-11). Continue exposing
the watch to light until the x Second Hand starts moving normally (at one-second
intervals).
■ The x Second Hand indicates N (NO) when I check the result of the latest
receive operation.
Possible Cause
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.
You are in an area where signal
reception is not possible for some
reason.
The calibration signal is not being
transmitted for some reason.
■ Auto Receive is not performed or I cannot perform Manual Receive.
Possible Cause
The watch is in the Stopwatch Mode.
Your Home City setting is wrong.
Page
There is not enough power for signal
reception.
E-21
E-34
Specifi cations
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Page
Timekeeping: Hour, minutes (hand moves every 10 seconds), seconds, 24-hour,
day, day of the week
E-32
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 29 city codes and Coordinated
Universal Time); Daylight Saving Time (summer time) / Standard Time
E-55
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a
day for the Chinese calibration signal; Remaining auto receives
cancelled as soon as one is successful); Manual receive
Receivable Time Calibration Signals:
Mainfl ingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz);
Anthorn, England (Call Sign: MSF, Frequency: 60.0 kHz); Fukushima,
Japan (Call Sign: JJY, Frequency: 40.0 kHz); Fukuoka/Saga, Japan
(Call Sign: JJY, Frequency: 60.0 kHz); Fort Collins, Colorado, the
United States (Call Sign: WWVB, Frequency: 60.0 kHz); Shangqiu City,
Henan Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Remedy
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
See "Approximate Reception Ranges".
Check the website of the organization
that maintains the time calibration signal
in your area for information about its
down times.
Try again later.
Remedy
Auto Receive is not performed while the
watch is in the Stopwatch Mode. Hold
down C for about two seconds to enter the
Timekeeping Mode.
Check your Home City setting and correct
it, if necessary.
Expose the watch to light to charge it.
E-61
E-63
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E-21
E-18
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E-65
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E-29
E-32
E-9
E-67
E-69