G-Shock GA-300 - Manual

Operation Guide 5259
MO1208-EA © 2012 CASIO COMPUTER CO., LTD.
E-1
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
About This Manual
• Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.
E-2
• Button operations are indicated using the letters shown in the illustration.
• Each section of this manual provides you with the information you need to perform
operations in each mode. Further details and technical information can be found in
the “Reference” section.
E-3
Contents
General Guide ......................................................................................................... E-6
Timekeeping ............................................................................................................ E-8
Stopwatch .............................................................................................................. E-14
Countdown Timer .................................................................................................. E-17
World Time ............................................................................................................. E-20
Alarms .................................................................................................................... E-24
Illumination ............................................................................................................ E-29
Hand Home Position Correction .......................................................................... E-33
Reference .............................................................................................................. E-35
Specifications ....................................................................................................... E-40
E-4
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To set the time and date ......................................................................................... E-9
To change the Daylight Saving Time (summer time) setting ............................ E-12
To use the countdown timer ................................................................................ E-18
To configure countdown start time settings ...................................................... E-19
To view the current time in another time zone ................................................... E-21
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-22
To swap your Home City and World Time City ................................................... E-23
To set an alarm time ............................................................................................. E-25
E-5
To test the alarm ................................................................................................... E-26
To turn an alarm on and off .................................................................................. E-27
To turn the Hourly Time Signal on and off .......................................................... E-28
To illuminate the display manually ...................................................................... E-29
To specify the illumination duration ................................................................... E-30
To turn the auto light switch on and off .............................................................. E-32
To adjust home positions ..................................................................................... E-33
To turn the button operation tone on and off ..................................................... E-36
E-6
General Guide
• Press C to change from mode to mode.
• To return to the Timekeeping Mode from any other mode, hold down C for about
three seconds.
• In any mode (except a setting mode), press B to illuminate the display.
Timekeeping Mode
C
▲
C
E-7
Alarm Mode (page E-24)
Countdown Timer Mode (page E-17)
World Time Mode (page E-20)
Stopwatch Mode (page E-14)
▲ ▲ C
C
▲ ▲
C
E-8
Timekeeping
You can adjust the Home Time city date and time in the Timekeeping Mode.
• Pressing A in the Timekeeping Mode will toggle lower display between the screens
shown below.
A
Home City Date Home City Time
▲ ▲
Date Seconds
Day of the week
Hour : Minutes
PM indicator
Day of the week
Seconds
E-9
To set the time and date
1. In the Timekeeping Mode, hold down A for about two
seconds until “SET” appears on the display. This is the
setting mode.
• Note that keeping A depressed too long (for about
five seconds) will cause a different type of setting
mode to be entered (page E-33).
2. Use D and B to select the city code you want.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table” at the back of this manual.
City code