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Operation Guide 5145
9
Illumination
In any mode (except when a setting screen is on the display), press
B
to illuminate
the display for about 1.5 seconds for easy reading in the dark.
Illumination may be diffi cult to see under bright sunlight.x
Illumination turns off automatically if you press any button that causes an operation x
tone to sound or if an alert operation is performed.
8
Type A:
No graphics
Type B:
With graphics
*UDSKLF
7
Display
Depending on its model number, your watch can have one of two display types
(Type A or Type B) as shown below. All of the examples in this manual show Type A
(no graphics). If your watch has a Type B display (with graphics), graphic fi gures will
appear and disappear timed with the seconds count.
Also, your watch may have dark fi gures on a light background or light fi gures on a x
dark background. All of the illustrations in this manual show dark fi gures on a light
background.
Note that the display style of a watch is fi xed. You cannot switch between styles.x
6
Stopping the Alarm Tone ..........................................................................94
Turning the Hourly Time Signal On or Off ...................................................94
Time and Date Settings 96
Confi guring Time and Date Settings ..........................................................97
Hand Home Position Adjustment 106
Specifi cations .........................................................................................111
5
Swapping Your Home Time and World Time Cities ....................................70
World Time City Code List ........................................................................73
Countdown Timer 76
Setting the Countdown Timer Start Time...................................................76
Using the Countdown Timer .....................................................................78
Time Up Alert ...........................................................................................79
Stopping the Time Up Alarm .....................................................................79
Stopwatch 80
Starting or Stopping an Elapsed Time Operation .......................................81
Alarm and Hourly Time Signal 87
Switching between Screens ......................................................................87
Setting an Alarm Time ..............................................................................89
Turning the Alarm On or Off ......................................................................92
4
Reception Time ........................................................................................45
Positioning the Watch for Best Reception..................................................45
Receiving a Calibration Signal ...................................................................48
Auto Receive ............................................................................................48
Using Manual Receive ..............................................................................52
Signal Level Indicator ...............................................................................54
Viewing the Latest Signal Reception Results .............................................56
Turning Auto Receive On or Off .................................................................57
Calibration Signal Reception Precautions ..................................................60
Troubleshooting........................................................................................62
World Time 67
Searching for a City ..................................................................................68
Using Summer Time (DST) ........................................................................69
Turning Summer Time On (DST) or Off (Standard Time) .............................69
3
Contents
Display 7
Illumination 9
Keep your watch exposed to light! 10
Modes and Indicators 17
Power Supply 22
Power Saving 32
How a Radio-controlled Watch Works 36
What is a radio-controlled watch? .............................................................36
Calibration Signal .....................................................................................37
Reception Ranges ....................................................................................39
2
Your watch runs on electric power generated from light, which is stored by a
rechargeable battery. To ensure stable operation, make sure that the watch is
exposed to light as much as possible as described in this manual.
See “Charging Guide” (page 30) for more information about required charging
times.
Be sure to charge the watch suffi ciently before using it!
1
Congratulations upon your selection of this CASIO watch.
Features ■
Accurate timekeeping using a time calibration signal ●
Solar power system charges with sunlight ●
LED light ●
World Time ●
Timer ●
Stopwatch ●
Alarm and Hourly Time Signal ●
MA1209-EB