CASIO LW23B-2
Manual de Usuario

Module No.1602/1665/1818
GENERAL GUIDE
� Press B to change from mode to mode. � After you perform an operation in any mode, pressing B returns to the Timekeeping Mode. The operational procedures for Module 1665,1818 and 1602 are identical. All of the illustrations in this manual show Module 1602. Alarm Mode Timekeeping Mode Stopwatch Mode Time Setting Mode

[Module 1665]

[Module 1818,1602]

TIMEKEEPING MODE
Day of the week PM indicator Date

STOPWATCH MODE
Mode Indicator

� In the Timekeeping Mode, press C to switch between the 12-hour and 24-hour formats. � Day of the week is displayed as follows. SU:Sunday MO:Monday TU:Tuesday WE:Wednesday TH:Thursday FR:Friday SA:Saturday

The Stopwatch Mode lets you measure elapsed time, split times, and two finishes. The range of the stopwatch is 59 minutes, 59.99 seconds.

About the backlight

Hour

Second Minute

� Holding down A at any time illuminates the display. � The backlight of this watch employs an electroluminescent (EL) light, which loses its illuminating power after very long term use. � Frequent use of the backlight shortens the battery life.

Split time indicator Minutes 1/100 second

Seconds

(a) Elapsed time measurement C C Start Stop

C

Re-start

C

Stop

A

Clear

ALARM MODE
Hourly time signal on indicator Alarm on indicator Mode indicator

When the Daily Alarm is switched on, the alarm sounds for 20 seconds at the preset time each day. When the Hourly Time Signal is switched on, the watch beeps every hour on the hour.

(b) Split time measurement C A Start Split

A Split release

C Stop

A Clear

To set the alarm time
1. Hold down A while in the Alarm Mode until the hour digits start to flash on the display. The hour digits flash because they are selected. 2. Press A to change the selection in the following sequence.
Hour Minutes

(c) Split time and 1st-2nd place times C A C A A Start Split Stop Split release Clear First runner Second runner Record time of finishes. finishes. second runner. Record time of first runner.

Hour Normal Alarm Mode (No digit flashes)

Minutes

TIME SETTING MODE
Day of the week PM indicator Date

� Once you reach the normal Alarm Mode, you have to hold down A again until the hour digits start to flash. 3. Press C to increase the selected digits. Holding down C changes the number at high speed. � The format (12-hour and 24-hour) of the alarm time matches the format you select for normal timekeeping. � When setting the alarm time using the 12-hour format, take care to set the time correctly as morning or afternoon (PM). 4. After you set the alarm time, press A to return to the Alarm Mode. At this time the Daily Alarm is switched on automatically. To stop the alarm Press A to stop the alarm after it starts to sound. To switch the Daily Alarm and Hourly Time Signal on and off Press C while in the Alarm Mode to change the status of the Daily Alarm and Hourly Time Signal in the following sequence.

To set the time and date
1. Use B to enter the Time Setting Mode. � The seconds digits flash because they are selected. 2. Press A to change the selection in the following sequence. Seconds Day of Week Hour Date Minutes Month

Hour

Seconds Minutes

Both on

Both off

Daily Alarm only

Hourly Time Signal only

To test the alarm
Hold down C while in the Alarm Mode to sound the alarm.

3. While the seconds digits are selected (flashing), press C to reset the seconds to �00�. If you press C while the seconds count is in the range of 30 to 59, the seconds are reset to �00� and 1 is added to the minutes. If the seconds count is in the range of 00 to 29, the minutes count is unchanged. 4. While any other digits (besides seconds) are selected (flashing), press C to increase the number. While the day of the week is selected, pressing C advances to the next day. Holding down C changes the current selection at high speed. 5. After you set the time and date, press B to return to the Timekeeping Mode. � If you do not operate any button for a few minutes while a selection is flashing, the flashing stops and the watch goes back to the Timekeeping Mode automatically.