Casio 2550 manual

USER’S GUIDE 2550

About This Manual

Mode icons	• The display of this watch uses two LCD panels that
	make it possible to display mode icons, numbers formed
	with segments, dot matrix characters, etc.
	• Button operations are indicated using the letters shown
	in the illustration. Keypad keys are indicated by their
	main keycap markings within square brackets in bold,
	such as [2].
	• 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.

Keypad

General Guide

To select a time zone on the Mode Menu

1. While the Mode Menu is on the display, press Ato display the time zone indicator group that contains the time zone you want to select.

2. Hold down the keypad key that corresponds to the time

zone you want to select until “ ” appears under its indicator. See the table below for information about which key you should hold down.

• Note that the arrangement of the keys in the bottom row of the keypad matches that of the indicators along the bottom of the Mode Menu.

Indicator	Key	Indicator	Key
HOME	[7]	PST	[7]
GMT	[8]	MST	[8]
CITY1	[9]	CST	[9]
CITY2	[0]	EST	[0]

Note

• The zone you select with the above operation remains selected on the Mode Menu

until you select another zone. Whenever you display the Mode Menu from another

Mode icons

Keypad

The first thing you need to do when using this watch is to enter the proper mode. To select a mode, first display the Mode Menu screen (by pressing C), and then press the keypad key that corresponds to the mode you want.

•Each mode is identified by a mode icon on the Mode Menu. For easy understanding, mode icons are arranged on the Mode Menu in the same relative positions as the keypad keys you need to press to enter the modes.

•When you enter a mode, the corresponding mode icon flashes on the display for about two seconds. After that, the mode screen appears on the display.

mode, it displays the current time in your Home City zone.

• If you use the above procedure to select one of the continental U.S. time zones in

the U.S. Group while your current Home City is located outside of the continental

U.S., the HOME indicator is automatically underlined by “ ” in the HOME Group, and the U.S. time zone you select becomes your Home City. This makes it easy to change your Home City setting to a city that is within the continental U.S.

To switch the input tone on and off

While the Mode Menu is on the display, press C to toggle the input tone on and off.

•The input tone on/off setting is applied to all modes, except the Stopwatch Mode.

Timekeeping

Note

Pressing Cwhile the Mode Menu is on the display toggles the key input tone on and off.

Mode	Key	Mode Icon	Mode	Key	Mode Icon
Timekeeping Mode	[1]		World Time Mode	[4]
e-DATA MEMORY	[2]		Alarm Mode	[5]
Mode
Telememo Mode	[3]		Countdown Timer	[6]
			Mode
Calculator Mode	[=]		Stopwatch Mode	[pm]

•To exit any mode and return to the Mode Menu, press C.

•In any mode, press Bto illuminate the display.

Mode Menu

The Mode Menu is a screen that gives you access to the watch’s different modes. The Mode Menu also displays the current time in your Home City, or in another zone that you select, and you can use it to turn the input tone on and off.

•While the Mode Menu is on the display, press D to toggle between the current time screen (hour, minutes, seconds) and the day/time screen (day of the week, hour, minutes).

Current time
(Hour : Minutes Seconds)	Day of week Hour : Minutes

Press .

Important!

The current time that appears on the Mode Menu screen is based on the Home City you select in the Timekeeping Mode. If the current time is not correct, enter the Timekeeping Mode and set the correct time for your Home City.

Displaying the Current Time

You can use the Timekeeping Mode to configure time and date settings, and to display the current time in another time zone.

•All of the operations in this section are performed in the

Day of week	Timekeeping Mode, which you enter by pressing [1]
Month – Day	while the Mode Menu is on the display.
	To select the top line information
	While in the Timekeeping Mode, press Dto cycle
	through the type of information you can display in the top
	line, as shown below.
Seconds	(Day of week,	(Year, Month,		(Month, Day)
Hour : Minutes	Month, Day)	Day)
PM indicator	(Day of week)		(Home City code)

•The following shows the month names used by the watch.

Month	1	2	3	4	5	6
Displayed name	Jan	Feb	Mar	Apr	May	Jun
Month	7	8	9	10	11	12
Displayed name	Jul	Aug	Sep	Oct	Nov	Dec

Read This Before You Set the Time and Date!

The times displayed in the Timekeeping Mode and World Time Mode, and on the Mode Menu are linked. Because of this, make sure you select a city name for your Home City (the city where you normally use the watch) before you set the time and date.

To set the time and date

1. In the Timekeeping Mode, use A to display the HOME group along the bottom of the screen, and then make

sure that “ ” is located under HOME.

• If it isn’t, hold down [7] for about one second until

“” appears under HOME.

2. Hold down Auntil the seconds start to flash, which indicates the setting screen.

3. Press Cor D to move the flashing in the sequence below to select other settings.

Press .

Time zone indicators

Normally, the current time in your Home City is shown at the top of the Mode Menu. A simple operation lets you display the current time in another continental U.S. time zone or another city, or Greenwich Mean Time.

Time Zone Indicators

Indicators along the bottom of the Mode Menu show the various types of time zones you can select. There are actually eight different time zone indicators, two groups of four each: HOME GMT CITY1 CITY 2 (HOME Group) and PST MST CST EST (U.S. Group).

•Press Awhile the Mode Menu is on the display to toggle between the two time zone groups.

•The currently selected zone is underlined on the display

by “”.

Press . Press .

Seconds	DST	City name	Hour
Day	Month	Year	Minutes

4.When the setting you want to change is flashing, use the keypad keys to change it as described below.

•You must input separate values for each of the two digits of the hour, minutes, year, month, and day settings. If you want to specify 3 o’clock, for example, input 03 for the hour. With the year setting, you can input values for the two rightmost digits.

Screen	To do this:	Do this:
	Reset the seconds to 00	Press [0].
	Toggle between Daylight Saving Time	Press [1] or [=].

	HOME Group		U.S. Group
Indicator	Meaning	Indicator	Meaning
HOME	Home City	PST	Pacific Time
GMT	Greenwich Mean Time	MST	Mountain Time
CITY1	City selected by you	CST	Central Time
CITY2	City selected by you	EST	Eastern Time

•You can select cities for CITY1 and CITY2 in the Timekeeping Mode.

•If the city you have selected for HOME is also included in a continental U.S. time

zone, the name of that time zone is underlined by “	” when the U.S. Group
Indicators are displayed.

(On) and Standard Time (Of)
Change the city name	• Use keypad keys [2] through [9]* .
	• Use [=] (forward) and [1] (back)
	to scroll through city names.
Change the hour or minutes	Input values on the keypad keys. The
	flashing moves to the right each time
Change the year, month or day	you input a value.

*[2] = ABUDHABI, [3] = DAKAR, [4] = GMT, [5]= JAKARTA,

[6]= MADRID, [7] = PANAMA, [8] = TAIPEI, [9] = WARSAW

•For information on city names, see the “City Code Table”. City names displayed by this watch are shortened to eight or fewer characters.

•While any selection is flashing, press B to toggle between 12-hour format (A or P indicator appears) and 24-hour format (no indicator).

•While the hour, minutes, year, month, or day is flashing, press [pm] to toggle between AM (A indicator appears) and PM (P indicator appears).

5.Press Ato exit the setting screen.

•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all modes.

• The day of the week is automatically displayed in accordance with the date (year, 1 month, and day) settings.