Manual Casio 3779 (page 2 of 3) (English)

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Operation Guide 3779 4306

About Auto Receive

With auto receive, the watch receives the time calibration signal automatically up to

five times a day. When any auto receive is successful, the remaining auto receive

operations are not performed. The reception schedule (calibration times) depends on

your currently selected Home Time Zone, and whether standard time or Daylight

Saving Time is selected for your Home Time Zone.

Your Home Time Zone Auto Receive Start Times

12345

GMT +0 Standard Time 1:00 am 2:00 am 3:00 am 4:00 am 5:00 am

Daylight Saving Time 2:00 am 3:00 am 4:00 am 5:00 am Midnight

GMT +1 Standard Time 2:00 am 3:00 am 4:00 am 5:00 am Midnight

Daylight Saving Time 3:00 am 4:00 am 5:00 am Midnight 1:00 am

next day

GMT +2 Standard Time 3:00 am 4:00 am 5:00 am Midnight 1:00 am

next day

Daylight Saving Time 4:00 am 5:00 am Midnight 1:00 am 2:00 am

next day next day

GMT –5, Standard Time and Midnight 1:00 am 2:00 am 3:00 am 4:00 am

–6, Daylight Saving Time

–7,

–8

Note

•When a calibration time is reached, the watch will automatically receive the

calibration signal only if it is in either the Timekeeping Mode or Receive Result

Mode. Auto receive is not performed if a calibration time is reached while you are

configuring settings.

•Auto receipt of the calibration signal is designed to be performed early in the

morning, while you sleep (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 seven minutes everyday when

the time in the Timekeeping Mode reaches each of the calibration times. Do not

perform any button operation within seven minutes before or after any one of the

calibration times. Doing so can interfere with correct calibration.

•Remember that reception of the calibration signal depends on the current time in the

Timekeeping Mode. The receive operation will be performed whenever the display

shows any one of the calibration times, regardless of whether or not the displayed

time is actually the correct time.

To turn off time calibration signal reception

1. In the Timekeeping Mode, hold down B for about five

seconds until the second hand moves to the currently

selected time zone and stops. This is the setting mode.

2. Press A a many times as required to move the second

hand to 11 o’clock.

•Time calibration signal reception is turned off when

the second hand is pointing to 11 o’clock.

3. Press B three times to exit the setting mode.

•If you turn off signal reception and then select a home

time zone that supports signal reception again, be sure

to perform a manual receive operation to adjust the time

setting.

To perform manual receive

1. Place the watch on a stable surface so its 6 o’clock side

is facing towards a window.

2. In the Timekeeping Mode, hold down A for about two

seconds until the second hand moves to the area along

the bottom of the face marked “•” (33 seconds).

•This will start manual calibration signal reception.

3. The second hand indicates one of the following

conditions described below during signal reception.

•The hour and minute hands continue to keep time

normally.

Start of Signal

Reception

“•” area (33 seconds)

“•••” area (38 seconds)

Getting ready

to receive

Receiving

It means this:If the second hand is pointing here:

•Time calibration signal reception takes from two to seven minutes, but in some

cases it can take up to 10 minutes. Take care that you do not perform any button

operations or move the watch during this time.

•The watch will enter the Receive Result Mode automatically after signal reception is

complete.

•To interrupt a receive operation and return to the Timekeeping Mode, press A.

Viewing the Latest Signal Reception Results

You can use the Receive Result Mode to check if signal reception was performed

correctly.

To check the latest signal reception results

Enter the Receive Result Mode.

•The watch will enter the Receive Result Mode

automatically after you perform a manual receive

operation.

•The position of the second hand indicates the result of

the latest receive operation, as shown below.

“Y” area (22 seconds) : Receive successful

“N” area (27 seconds) : Receive failed

•The hour and minute hands continue to keep time normally in the Receive Result Mode.

•The watch will not enter the Receive Result Mode when you press A if calibration

signal reception is turned off.

•To return to the Timekeeping Mode, press A.

•Manually changing the hour and minute hand setting clears the current receive

result. This is indicated by the second hand pointing to the “N” area (27 seconds).

•The second hand will point to the “N” area (27 seconds) if the last receive operation

was interrupted for some reason.

Signal Reception Troubleshooting

Check the following points whenever you experience problems with signal reception.

•The watch is not in the Timekeeping

Mode or Receive Result Mode.

•Signal reception is turned off.

•You changed the time setting

manually.

•

You were adjusting the watch settings

when the auto receive start times

were reached.

•

You pressed

while signal receive

was in progress.

Cannot

perform

manual

receive.

The second

hand is

pointing to

the “N” area

(

27 seconds

•Enter the Timekeeping Mode

or Receive Result Mode and

try again.

•Select a time zone that

enables calibration signal

reception.

•Perform manual signal

receive or wait until the next

auto signal receive operation

is performed.

•Check to make sure the

watch is in a location where it

can receive the signal.

What you should doProblem Probable Cause

Time setting

is incorrect

following

signal

reception.

•The Home Time Zone setting is not

correct for the area where you are

using the watch.

•The home position of the hands is

off.

•Select the correct Home

Time Zone.

•Enter the Home Position

Adjustment Mode and adjust

the home position.

•For further information, see “Important!” under “Time Calibration Signal Reception”

and “Radio-controlled Timekeeping Precautions”.

Adjusting the Home Positions

If the time settings are wrong even after the time calibration signal is received

normally, use the following procedure to adjust their home positions.

To adjust the home positions

1. Enter the Home Position Adjustment Mode.

•If the home position of the second hand is currently

correct, it will move to the 12 o’clock position.

•The analog hands do not keep time during home

position adjustment.

2. Check the position of the second hand.

•The second hand home position is correct if it is

pointing at 12 o’clock.

•If the second hand is not pointing at 12 o’clock, it

means that its home position is off. If this happens,

press A to move the second hand clockwise in one-

second steps, until it points at 12 o’clock.

12 o’clock

Correct second hand

home position 3. Press B to advance to hour and minute hand home

position adjustment.

•If current hour and minute hand alignment is correct,

they will both move to 12 o’clock.

4. Check the position of the hour and minute hands.

•If the hour and minute hands are not pointing at 12

o’clock, it means that their home position is off. If this

happens, press A to move the hour and minute

hands clockwise in 20-second steps, until they point

at 12 o’clock.

5. Press B to exit home position adjustment.

•This will cause the watch to return to the Timekeeping

Mode. The hour, minute, and second hands will indicate

the current time.

Correct hour

and minute hand

home position

12 o’clock

Timekeeping

Use the Timekeeping Mode to set and view the current

time. This section also explains how to set the current time

manually.

•If you become confused and lose your way during the

following procedures, simply put the watch down and do

not perform any button operation for about three

minutes. This will cause the watch to enter the

Timekeeping Mode (indicated by normal one-second

movement of the second hand) automatically. After that,

you can try performing the manual setting procedure

again from the beginning.

Hour hand Minute hand

Second hand

Setting the Time

You can use the Timekeeping Mode to change the hand setting and to switch between

Standard Time and Daylight Saving Time.

•You can also change the Home Time Zone setting in the Timekeeping Mode.

To change the time setting

1. In the Timekeeping Mode, hold down B for about five

seconds until the second hand moves to the currently

selected time zone and stops. This is the setting mode.

2. Press B twice.

•This will cause the second hand to the 8-second

position.

Press

to move the time setting forward by one minute.

•Holding down A for about two seconds starts high-

speed hand movement. High-speed hand movement

will continue until the hands complete a 12-hour cycle,

or until you stop them by pressing A.

4. Coordinating with a time signal on the radio or TV, press B to restart normal

timekeeping. The second hand will move to 12 o’clock at the start of timekeeping.

•If you did not change any of the time settings (hour, minute), pressing B will cause

the second hand to move to the seconds for the current time and resume

timekeeping from there.

•If you manually change the time setting between midnight and noon, the watch will

perform auto receive starting from noon. After that, auto receive will be performed at

the normal times (starting from midnight) each day. If you manually change the time

setting between noon and midnight, the watch will start performing normal auto

receive starting from midnight.

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Casio 3779 User Manual - German - 3 pages

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Casio 3779 Manual

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