Casio 3172 Manual De Usuario

2

Operation Guide 3172

This watch receives a time calibration signal and updates its time setting accordingly. However, when 
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings 
manually as required. See “Confi guring Current Time and Date Settings Manually” for more information.
This section explains how the watch updates its time settings when the city code selected as the Home 
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal 
reception.

LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW

Anthorn (England), Mainfl ingen (Germany)

HKG, BJS

Shangqiu City (China)

TPE, SEL, TYO

Fukushima (Japan), Fukuoka/Saga (Japan)

HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI, NYC, YHZ, 
YYT

Fort Collins, Colorado (United States)

•

 The areas covered by MOW, HNL and ANC are quite far from the calibration signal transmitters, so 

certain conditions may cause reception problems.

•

 When HKG or BJS is selected as the Home City, only the time and date are adjusted according to the 

time calibration signal. You need to switch manually between standard time and daylight saving time 
(DST) if required. See “To confi gure Home City settings” for information about how to do this.

Anthorn

500 kilometers

1,500 kilometers

The Anthorn signal is 
receivable within this area

Mainflingen

2,000 miles
(3,000 kilometers)

600 miles
(1,000 kilometers)

Fort Collins

500 kilometers

Changchun

Beijing

Shangqiu

Shanghai

Chengdu

Hong Kong

1,500 kilometers

1,000 kilometers

Signals are receivable in the Taiwan area 
when reception conditions are good.

Fukuoka/Saga

500 kilometers

Fukushima

•

 Even when the watch is within range of a transmitter, signal reception may be impossible due to the 

effects of geographic contours, structures, weather, the time of year, the time of day, radio interference, 
etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the 
infl uence of the conditions listed above becomes even greater.

•

 Signal reception may not be possible at the distances noted below during certain times of the year or 

day. Radio interference may also 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: 500 kilometers (310 miles)

•

 As of January 2009, China does not use Daylight Saving Time (DST). If China does go to the Daylight 

Saving Time system in the future, some functions of this watch may no longer operate correctly.

To get ready for a receive operation
1. Confi rm that the watch is in the Timekeeping Mode. If it isn’t, use 

D to enter the Timekeeping Mode.

2. The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing 

towards a window as shown in the nearby illustration. Make sure there are no metal objects nearby.

•

 Signal reception normally is better at night.

•

 The receive operation takes from two to seven minutes, 

but in some cases it can take as long as 14 minutes. Take 
care that you do not perform any button operation or 
move the watch during this time.

•

 Signal reception may be diffi cult or even impossible under the conditions described below.

Inside or 
among
buildings

Inside a 
vehicle

Near
household
appliances,
offi ce 
equipment,
or a mobile 
phone

Near a 
construction
site, airport, 
or other 
sources of 
electrical
noise

Near
high-tension
power lines

Among or 
behind
mountains

3. What you should do next depends on whether you are using Auto Receive or Manual Receive.

•

 Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto 

Receive” below for details.

•

 Manual Receive: Perform the operation under “To perform manual receive”.

12 o’clock

or

12 o’clock

or

•

 With Auto Receive, the watch performs the receive operation each day automatically up to six times (up 

to fi ve times for the Chinese calibration signal) between the hours of midnight and 5 a.m. (according to 
the Timekeeping Mode time). When any receive operation is successful, none of the other receive 
operations for that day are performed.

•

 When a calibration time is reached, the watch will perform the receive operation only if it is in the 

Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is 
reached while you are confi guring settings.

•

 You can use the procedure under “To turn auto receive on and off” to enable or disable auto receive.

1. Use 

D to select the Receive Mode (R/C) as shown in “Selecting a 

Mode”.

2. Hold down 

A.

•

 Keep 

A depressed until RC Hold appears on the display and the 

receiving indicator starts fl ashing.

•

 A signal level indicator (L1, L2, or L3, see “Signal Level Indicator”) 

appears on the display after reception starts. Do not move the 
watch or perform any button operation until GET or ERR appears 
in the upper left corner of the screen.

•

 If the receive operation is successful, the reception date and time 

appear on the display, along with the GET indicator.
The watch will return to the Timekeeping Mode if you press 

D or 

if you do not perform any button operation for about two or three 
minutes.

•

 If the current reception fails but a previous reception (within the 

last 24 hours) was successful, the display shows the receiving 
indicator and the ERR indicator. If the ERR indicator only is 
displayed (without the receiving indicator), it means that all of the 
receive operations over the past 24 hours have failed.
The watch will return to the Timekeeping Mode without changing 
the time setting if you press 

D or if you do not perform any button 

operation for about two or three minutes.

To interrupt a receive operation and return to the Receive Mode, press 

A.

During manual receive, the signal level indicator displays the signal level 
as shown below.

As you watch the indicator, keep the watch in a location that best 
maintains stable reception.

•

 Even under optimum reception conditions, it can take about 10 

seconds for reception to stabilize.

•

 Note that weather, the time of day, surroundings, and other factors all 

can affect reception.

Enter the Receive Mode.

•

 When receive is successful, the display shows the time and date that 

receive was successful. - : - - indicates that none of the reception 
operations were successful.

•

 To return to the Timekeeping Mode, press 

D.

Note
The receiving indicator will not be displayed if you have adjusted the 
time or date setting manually since the last receive operation.

1. Enter the Receive Mode.

2. In the Receive Mode, hold down 

E until the current auto receive 

setting (On or OFF) and receiving indicator start to fl ash. This is the 
setting screen.

•

 Note that the setting screen will not appear if the currently selected 

Home City is one that does not support time calibration reception.

3. Press 

A to toggle auto receive on (On) and off (OFF).

4. Press 

E to exit the setting screen.

If there was a previously 

successful reception

If no reception was 

successful

If there was a previously 

successful reception

If no reception was 

successful