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Operation Guide 5163 (OC)
E-23
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem Probable Cause What you should do
I can’t receive a time
calibration signal.
You performed some button operation x
during auto receive.
The watch is not in the Timekeeping Mode x
or World Time Mode.
The watch is in a location where the signal
x
cannot be received for some reason.
A countdown timer operation is in x
progress.
Radio interference is often present during
x
the day time, which can interfere with
signal reception.
Perform manual receive at night or wait x
until the next auto receive operation is
performed.
Enter the Timekeeping Mode or World
x
Time Mode and try again.
Enter the Countdown Timer Mode and x
stop the countdown (page E-29).
Check to make sure the watch is in a x
location where it can receive the signal
(page E-13).
The time setting is
incorrect following
signal reception.
If the time is one hour off, the DST setting
x
may be incorrect.
The Home City code setting is not correct x
for the area where you are using the
watch.
The home positions of the hands are off.
x
Change the DST setting to Auto DST x
(page E-46).
Select the correct Home City code x
(page E-11).
Enter the home position adjustment
x
mode and adjust the home positions
(page E-48).
For further information, see “Important!” (page E-13) and “Radio-controlled Atomic Timekeeping x
Precautions” (page E-51).
E-22
To check the latest signal reception results
In the Timekeeping Mode, press A to view the last successful receive time and date.
Press A again to return to the previous screen.
Date Hour : Minutes
E-21
Time calibration signal reception takes from two to seven minutes, but in x
some cases it can take as long as 14 minutes. Take care that you do not
perform any button operations or move the watch during this time.
When a signal receive operation is successful,
x GET appears on the upper
display and the lower display shows the time and date of the successful
operation. The watch will adjust its time setting in accordance with the
information provided by the signal.
The watch will return to the Timekeeping Mode if you press
x A or if you do
not perform any operation for about one or two minutes.
xERR will appear on the upper display if the receive operation is not
successful. The watch will not adjust its time setting in this case. Press A
to return to the Timekeeping Mode.
Note
To interrupt a receive operation and return to the Timekeeping Mode, press
x
any button.
Receive successful
Receive failed
E-20
To perform manual receive
Place the watch on a stable surface so its 12 o’clock side is facing towards 1.
a window (page E-13).
In the Timekeeping Mode, hold down 2. A for about two seconds until the
watch beeps.
The digital display will go blank, and the left dial hand will move to 3.
R (READY). This indicates that the watch is getting ready for time calibration
signal reception.
See the information under “Signal Reception Troubleshooting” (page
x
E-23) if you experience problems.
The left dial hand will move to
x W (WORK) and stay there while actual
reception is in progress.
If signal reception is unstable during reception, the left dial hand may
x
move between W (WORK) and R (READY).
The hour and minute hands continue to keep time normally. x
Receiving
W (WORK)
R (READY)
E-19
Your Home City
Auto Receive Start Times
12345 6
HNL
ANC
LAX
DEN
CHI
NYC
YVR
YEA
MEX
MIA
YTO
YHZ
YYT
Standard Time and
Daylight Saving Time
Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
*Next day
Note
When a calibration time is reached, the watch will receive the calibration signal only if it is in either the
x
Timekeeping Mode or World Time Mode. Reception is not performed if a calibration time is reached
while you are confi guring settings.
Auto receive of the calibration signal is designed to be performed early in the morning, while you sleep
x
(provided that the Timekeeping Mode time is set correctly). Before going to bed for the night, remove
the watch from your wrist, and put it in a location where it can receive the signal easily.
The watch receives the calibration signal for two to 14 minutes everyday when the time in the
x
Timekeeping Mode reaches a calibration time. Do not perform any button operation within 14 minutes
before or after the calibration times. Doing so can interfere with correct calibration.
Remember that reception of the calibration signal depends on the current time in your Home City, as
x
kept in the Timekeeping Mode.
E-18
About Auto Receive
The watch receives the time calibration signal automatically up to six times a day (fi ve times for the China
signal). When any auto receive is successful, remaining auto receive operations are not performed.
The reception schedule (calibration times) depends on your currently selected Home City, and whether
standard time or Daylight Saving Time is selected for your Home City.
Your Home City
Auto Receive Start Times
12345 6
LON
LIS
Standard Time
Daylight Saving Time
1:00 am
2:00 am
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
PAR
BER
MAD
ROM
STO
Standard Time
Daylight Saving Time
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 am*
ATH
Standard Time
Daylight Saving Time
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
MOW
Standard Time
Daylight Saving Time
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
3:00 am*
4:00 am*
HKG
BJS
Standard Time
1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
TYO
TPE
SEL
Standard Time
Midnight 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am
E-17
Signal reception may not be possible at the distances that are further than those noted below during x
certain times of the year or day. Radio interference also may cause problems with reception.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
−
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) −
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) −
Shangqiu (China) transmitter: 1,500 kilometers (910 miles) −
Even when the watch is within the reception range of the transmitter, signal reception will be impossible x
if the signal is blocked by mountains or other geological formations between the watch and signal
source.
Signal reception is affected by weather, atmospheric conditions, and seasonal changes.
x
As of September 2009, China does not use Daylight Saving Time (DST). If China does go to the x
Daylight Saving Time system in the future, some functions of this watch may no longer operate
correctly.
E-16
Approximate Reception Ranges
Japanese Signals Chinese Signal
1,500 kilometers
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainfl ingen
The Anthorn signal is
receivable within this area.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/Saga
Signals are receivable in the Taiwan area when
reception conditions are good.