Casio 3356 User Manual

MA0406-EA

Modes and Display Screens

Operation Guide 3311/3356

Each press of the

C button sounds a confirmation tone and cycles through available modes in the sequence shown below.

Timekeeping Mode

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Changing Display Screen Contents

Each press of the button cycles digital display contents in the sequence shown below.

Day of the Week Day Day of the Week

•

For more information, see “To configure digital settings”.

Current Time Screen Seconds Screen

PM indicator (no indicator for AM)

Days of the Week

SU: Sunday MO: Monday TU: Tuesday WE: Wednesday TH: Thursday FR: Friday SA: Saturday

Button

Hour Hand

Minute Hand

(Light)

Button

Second Hand

Digital Display

Power Supply

The power supply of this watch uses a solar cell to generate electrical power, which is stored by a rechargeable battery. Using or storing the watch where it is not regularly exposed to light, or allowing it to be blocked from light by your sleeve for long periods as you are wearing it can cause the power of the rechargeable battery to run down. To ensure stable operation, be sure to allow the watch to be exposed to light as much as possible when you are wearing or storing it.

Important!

Note that all data in memory and all settings are cleared whenever you allow the level of the rechargeable battery to drop to Level 4.

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Checking the Battery Level

Use the Battery Level Screen to check the current level of the watch’s rechargeable battery.

• In the Timekeeping Mode, press the C button once to change to the Battery Level Screen.

Battery Level ScreenTimekeeping Mode

Example: Day of the Week

Calendar Screen

Receive Icon (Indicates time calibration signal reception was successful.)

Level 1

Level 2

Level 3

Level 4

• Exposing the watch to direct sunlight or other strong light may cause the battery level indicator to momentarily indicate a level that is higher than the actual battery level. Because of this, you should wait for a short while after charging to check the battery level indicator.

• Alarms and the hourly time signal cannot be turned on, and signal reception is disabled while the battery is at Level 3.

• Signal reception will become enabled again when the battery is recharged up to Level 2.

• Even after the battery drops to Level 4, watch operation will resume as soon as charging starts. However, you should wait until the digital display operation resumes before setting the time and date.

SecondsHour Minutes

Normal operation enabled.

Signal reception, tones (alarms, hourly time signal), display illumination, digital display, and analog timekeeping disabled.

All functions, including timekeeping, disabled.

• The display will automatically revert to the Timekeeping screen if you leave the Battery Level, Alarm, or Hand Setting screen displayed without performing any operation for about two or three minutes.

Alarm ModeWorld Time ModeBattery Level Screen

City Code

Alarm Number

2-second interval

Stopwatch ModeHand Setting Mode

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Start charging at Level 3!

Battery Level 3 indicates that remaining battery power is very low. Be sure to expose the watch to light for recharging as soon as possible after the Level 3 indicator starts to flash.

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Flashing Recover Indicator

If you use the light or alarms a number of times during a short period, a recover (R) indicator flashes on the display and the following operations become disabled as battery power recovers.

• Display illumination

• Alarm and hourly time signal

• Analog timekeeping

• Time calibration signal reception

Normal operation will return after the battery recovers.

Recover (R) Indicator

Mode Indicator

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Charging Precautions

Avoid charging the watch in the following locations, and anywhere else where the watch may become very hot.

• On the dashboard of an automobile parked in the sun

• Very close to an incandescent light source or other sources of

heat

• In a location exposed to direct sunlight for long periods Note that the display panel may become black under very high temperatures. This is temporary, and the display will appear normal again at lower temperatures.

Depending on the light source you are using, the case of the watch may become quite hot during charging. Take care to guard against burn injury after charging.

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To charge the battery

Point the solar panel (face) of the watch at a light source.

• Remember that even a partial blockage of the solar cell reduces charging efficiency.

Example: Positioning the watch

• The illustration shows the resin band model.

Solar Cell

Mode Indicator

Operation Guide 3311/3356

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Charging Guide

Starting from a full charge, the watch should be able to continue operating for about five months without further charging under the conditions described below.

Daily Use (All time values are approximate.)

• Display Illumination:

1.5 seconds

• Alarms: 10 seconds

• Signal reception: 5 times

Making sure the watch is regularly exposed to light ensures stable operation.

• Charge Times Required to Advance to a Higher Level

Exposure Level

(Brightness)

Outdoor Sunlight

(50,000 lux)

Sunlight Through a

Window (10,000 lux)

Daylight Through a

Window on an Overcast

Day (5,000 lux)

Indoor Fluorescent

Lighting (500 lux)

• Note that the above charging times are for reference only. Actual charging time depends on a variety of environmental factors.

Level 4

Required Daily Charging Time

•

The following is the daily amount of charging required each day to support the operations under “Daily Use”.

Exposure Level

(Brightness)

Outdoor Sunlight

(50,000 lux)

Sunlight Through

a Window

(10,000 lux)

Daylight Through a

Window on an Overcast

Day (5,000 lux)

Indoor

Fluorescent

Lighting (500 lux)

Approximate Exposure Time

Level 3

Level 2

1 hour

4 hours

8 hours

76 hours

– – – – – –

Approximate

Exposure

Time

5 minutes

24 minutes

48 minutes

8 hours

Level 1

5 hours10 hours

22 hours48 hours

46 hours99 hours

Display Illumination

Pressing the B button in any mode illuminates the digital display for easy reading.

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To specify the illumination duration

1. In the Timekeeping Mode

hold down the for about two seconds.

• This will display the transmitter selection mode setting screen and cause the second hand to move to the 12 o’clock position.

A button

Timekeeping Mode

Power Saving

The Power Saving feature of the watch is turned on at the factory.

• Power Saving causes the watch to automatically enter a sleep state and save power whenever the watch is left in the dark.

• Note that the watch may also enter the sleep state if the watch is blocked from light by your sleeve.

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How the sleep state works

Display sleep state

The display sleep state is triggered whenever the watch is left in the dark for three or four days.

• The display sleep state causes the display to go blank, except for a flashing Power Saving indicator. Alarms and the hourly time signal continue to operate normally while the watch is in the display sleep state. Even when the watch is in the display sleep state, digitalanalog time coordination and auto signal receive are both performed.

Function sleep state

The function sleep state is triggered whenever the watch is left in the dark for four days.

• Alarms and the hourly time signal are also disabled while the watch is in the function sleep state. In the function sleep state, analog timekeeping is disabled, and auto signal receive is not performed.

• Digital timekeeping functions continue to operate normally in the function sleep state.

Power Saving Indicator

3. Press the

• Each press of the B button

B button to

select the display illumination duration you want.

toggles the display illumination duration between

1.5 seconds and 2.5 seconds. An indicator on the display shows which setting is currently selected.

1.5 seconds

2.5 seconds

(Toggle)

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To recover from the sleep state

Move the watch to a brightly lit location or press any button.

• It can take up to two seconds before display figures re-appear after you place the watch in a well-lit area.

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To turn Power Saving on and off

Use the procedure under “To configure digital settings” to turn Power Saving on or off.

Leaving the watch in a drawer or anywhere else it is dark can cause Power Saving to trigger in order to conserve battery power.

You can specify 1.5 seconds or 2.5 seconds as the duration of display illumination.

2. Press the

• This causes the seconds

A button once

and then press the button.

count to flash on the display.

4. When the setting is the

AT (Auto Switching)

way you want, press the

A button.

• This will exit the setting screen and return to the Timekeeping Mode screen. Also, the second hand will move automatically to the current second, as kept by digital timekeeping.

• The display also will exit the setting screen automatically if you do not perform any operation for about two or three minutes.

Operation Guide 3311/3356

How a Radio-controlled Watch Works

What is a radio-controlled watch?

Your radio-controlled watch is designed to receive a time calibration signal that contains standard time data, and adjust its current time setting accordingly.

Signal is received

Transmitter

Cesium atomic clock

After the watch receives the Standard Time signal, it performs internal calculations to determine the current time. Because of this, there may be an error of up to one second in the displayed time.

Long-wave time calibration signal

Signal data

Watch

Time data

Internally

using built-in antenna.

Watch decodes received data and converts it to time data.

Decode

Time is adjusted according to time data.

Location

Reception is difficult and may even be impossible in the locations described below. Avoid such locations when performing signal reception.

• You should think of your watch operating like a radio or TV when it is receiving the calibration signal.

Among or near buildings

Inside a vehicle

(automobile, train, plane, etc.)

In a location where there is radio interference (construction site, airport, etc.)

If you are experiencing problems with reception, move away from the types of locations described above to a location with better reception, and try again.

Near high-voltage lines

Next to a household appliance or office equipment (TV, speaker, fax, computer, cell phone, etc.)

Near mountains

Calibration Signal

• The Japanese calibration signal (Call Sign: JJY) is maintained by the National Institute of Information and Communications Technology (NICT). It is a long wave signal transmitted 24 hours a day from the Mt. Otakadoya transmitter (40kHz) located in Tamura-gun, Fukushima Prefecture, and from the Mt. Hagane transmitter (60kHz) located on the border between Saga Prefecture and Fukuoka Prefecture.

• The U.S. calibration signal (Call Sign: WWVB) is transmitted by the National Institute of Standards and technology from Fort Collins, Colorado.

Note that transmission of the standard wave may be interrupted occasionally due to maintenance, lightening, etc.

Receiving the Calibration Signal

There are two methods you can use to receive the time calibration signal.

• Auto receive (Reception is performed automatically at

midnight, 1:00, 2:00, 3:00 and 4:00 each morning.)

•

Manual receive (You initiate reception using a button operation.)

• If reception is not successful for any of the normal auto receive operations shown above, auto receive is performed one more time at 5:00 a.m.

• The watch is set up for auto receive at the factory, so all you need to do is to place it in a location that allows good reception each night.

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To position the watch for optimum reception

Remove the watch from your wrist and place it somewhere so its top (12 o’clock side, where the antenna is located) is facing approximately in the direction of the signal transmitter. Keep the watch away from metal objects.

Resin band

Metal band

• Orienting the watch so it is sideways to the transmitter makes it more difficult to receive the signal.

• Do not move the watch while it is receiving the calibration signal.

Reception Range

This watch is designed to receive the standard time calibration signal of Japan (JJY) or of the United States (WWVB). The signal that is received depends on the current Home City setting.

• For information about selecting a Home City, see “Selecting Your Home City”. For information about city codes, see the “World Time City Code List”.

Home City

TYO

LAX, DEN, CHI, NYC

Japan Transmitter

Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz)

Fort Collins, Colorado signal

1000km

Locations

Mt. Otakadoya

Mt. Hagane

(60kHz)

• Under optimum conditions, the calibration signal should be receivable up to 1,000 kilometers from the transmitter. Note that the wave is relatively weak at distances greater than 500km, so reception may be poor at long distances.

• Geographic contours, nearby buildings, seasonal conditions, the time of day, can even make reception impossible even when you are within range of the transmitter.

• Best reception is possible late at night.

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Time Required for Reception

A calibration signal receive operation takes anywhere from about two to six minutes.

• Note that when “AT” (Auto Select) is specified as the transmitter selection mode, signal reception can take up to 12 minutes.

• See “Configuring Transmitter Selection Mode Settings” for more information.

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To perform manual receive

In the Timekeeping Mode, hold down the two seconds.

• The watch will beep and

reception will start. An indicator flashes on the display and the receive icon changes to while signal reception is in progress.

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To interrupt reception

Press the

• All other buttons besides D are disabled during signal reception.

When reception is successful

The watch terminates reception and adjusts the current time. Next it beeps and then displays the date and time that the adjustment was performed.

•

At this time, the second hand will adjust automatically to the digital time.

• After the date and time of the adjustment appear on the display, press the D button to return to the Timekeeping Mode. The watch will also return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes.

Reception Error (ERR Indicator)

The watch does not adjust its current time setting, and displays “ERR” when signal reception is unsuccessful for some reason.

• The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one or two minutes.

500km

D button for about

D button.

500km

1000km

(40kHz)

• Under optimum conditions, the calibration signal should be

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The receive icon cycles from “Unstable” through “Stable” as shown below while reception is in progress. How far it cycles depends on the signal strength. Keep the watch in a location where reception is stable while reception is in progress.

• Even under optimum reception conditions, it can take about 10

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Second Hand

The second hand moves to the 12 o’clock position when signal reception starts.

• It resumes normal movement after reception is complete.

• Pressing a button to stop reception causes the second hand to

Hour and Minute Hands

These hands continue to operate normally.

Transmitter

U.S. Transmitter Location

3000km

1000km

Fort Collins

receivable up to 3,000 kilometers from the transmitter. Note that the wave is relatively weak at distances greater than 1,000km, so reception may be poor at long distances.

Receive Icon

Unstable Stable

seconds for reception to stabilize.

• Use the receive icon to check reception status and to determine the best location for signal reception.

• Note that weather, the time of day, surroundings, and other factors can all affect reception.

Receive Icon

Analog Hands and Signal Reception

move to the seconds count as kept by digital timekeeping, and resume normal operation.

Note that the second hand does not move while signal reception is in progress.

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