Casio LCF-10 (Module 4764) User Manual

Current Time Mode

In this mode, you can view and set the current time and date.

Setting Current Time/Date

1. In Current Time Mode, press and hold the [A] button until the seconds display flashes, indicating the start of setting.
2. Press the [C] button to cycle through the settings: Seconds → Daylight Saving Time (DST) → City Code → Hours → Minutes → 12/24 Hour Format → Year → Month → Day → Backlight Duration → Seconds.
3. Use the [D] and [B] buttons to select your current location's city code.
4. If the seconds are flashing (selected for adjustment), press the [D] button to reset the seconds to 00. If you press [D] when the seconds are between 30 and 59, the seconds will reset to 00 and the minutes will increment by 1. If the seconds are between 00 and 29, the minutes will not change.
5. Use the [D] button to increase and the [B] button to decrease the selected value for minutes, etc.
6. The day of the week is set automatically according to the date.
7. The date can be set from January 1, 2000, to December 31, 2039.
8. Press the [D] button to switch between 12-hour and 24-hour time formats.
9. When the 12-hour format is selected, the [PM] indicator shows times from noon onwards.
10. Press the [D] and [B] buttons to select the city code.
11. In Daylight Saving Time mode, press the [D] button to turn [DST] ON or OFF.
12. Press the [D] button to select backlight duration: 1 second or 3 seconds.
13. After completing settings, press the [A] button.

World Time Mode

In this mode, you can view the local time in any of the 27 cities (29 time zones).

Viewing World Time

In World Time Mode, press the [D] button to select the city whose time you want to view.

Daylight Saving Time (DST) Setting

1. Use the [D] button to select the city for which you want to change the DST setting.
2. Press the [A] button to turn [DST] ON or OFF.

Countdown Timer Mode

The countdown timer can be set for a duration of 1 to 60 minutes.

• When the countdown reaches zero, a long beep sounds.
• With auto-repeat enabled, the timer will sound and immediately restart from the previously set time when it reaches zero. This can repeat up to 8 times.
• You can also set an audible signal for the countdown process. Four short beeps will sound at the start of every fifth minute and 30 seconds before the countdown ends. The signal will then sound every second for the last 10 seconds.
• If the countdown start time is 6 minutes or more, the audible signal will sound every second for the last 10 seconds leading up to the 5-minute mark. At the 5-minute mark, four short beeps will sound.

Setting the Timer

1. In Timer Mode, press and hold the [A] button while the start time is displayed. The start time display will flash, indicating the start of setting.
2. Press the [C] button to cycle through settings: Start Time → Auto-Repeat Mode → Audible Signal.
3. Use the [D] and [B] buttons to input the start time values.
4. Use the [D] button to turn the audible signal ON or OFF.

Stopwatch Mode

The Stopwatch Mode allows you to measure individual lap times, split times, and first- and second-place times. The maximum measurable time is 59 minutes, 59.99 seconds.

Measuring Individual Lap Times

Sequence: [D] (Start) → [D] (Stop) → [D] (Restart) → [D] (Stop) → [A] (Reset).

Measuring Split Times

Sequence: [D] (Start) → [A] (Split time. SPL indicator appears) → [A] (Restart) → [D] (Stop) → [A] (Reset).

First- and Second-Place Times

Sequence: [D] (Start) → [A] (Split. First finisher's time displayed) → [D] (Stop. Second finisher's time displayed) → [A] (Cancel split. Second finisher's time displayed) → [A] (Reset).

Alarm Mode

You can set five different daily alarms.

1. In Alarm Mode, press the [D] button to select the alarm type: AL1, AL2, AL3, AL4, SNZ (Snooze), SIG (Hourly Time Signal).
2. After selecting the alarm type, press and hold the [A] button for 3 seconds. The hour digits will flash, indicating they are selected for setting. The alarm is automatically turned ON at this point.
3. Press the [C] button to cycle through settings: Hours → Minutes → Hours.
4. Use the [D] and [B] buttons to adjust the selected value.
5. After completing settings, press the [A] button.

Checking Alarm Sound

In Alarm Mode, press the [D] button to check the alarm sound.

Turning Alarm and Hourly Time Signal ON/OFF

1. In Alarm Mode, press the [D] button to select the alarm type.
2. Press the [A] button to turn the alarm ON or OFF.
3. When the normal alarm is selected, the [AL] indicator appears on the display.
4. When the Hourly Time Signal is selected, the [SIG] indicator appears.
5. When the snooze alarm is selected, the [SNZ] indicator appears.

Backlight

Pressing the [B] button in any mode turns on the watch's backlight.

• The backlight automatically turns off when any alarm sounds.
• The backlight uses electro-luminescent (EL) panels, whose power decreases after a certain period of use.
• A faint sound may be heard when the backlight is on. This is due to the vibration of the luminous elements and is not an indication of malfunction.
• The backlight is difficult to see in direct sunlight. Frequent use of the backlight shortens battery life.

Changing Backlight Duration

1. In Current Time Mode, press and hold the [A] button until the seconds display flashes, indicating the start of setting.
2. Press the [C] button nine times to reach the backlight duration setting.
3. Press the [D] button to switch between 1-second and 3-second backlight durations.
4. After completing settings, press the [A] button.