Casio Laptop DQ 643 User Manual

USER’S GUIDE DQ-643  
SETTING THE TIME  
1. Open the battery compartment cover. Press the SET button (3) to cycle through the setting screens as shown  
below.  
Normal Timekeeping Screen  
Year Setting Screen  
12-hour/24-hour Timekeeping Screen  
Month and Day Setting Screen  
Time Setting Screen  
A sticker is affixed to the display of this clock when you purchase it. Be sure to remove the sticker before using  
the clock.  
Depending on the clock model, the configuration of your clock may differ somewhat from that shown in the  
illustration.  
2. While the screen you want is on the display, use the Alarm Time Set buttons (2) to change the digits that are  
flashing.  
Alarm Off  
Alarm On  
DATE (month - date)  
Alarm time  
Snooze on indicator  
Day of the week  
Press ̅ to increase  
the flashing digits.  
Press ̃ to decrease  
the flashing digits.  
Holding down ̅ or ̃ changes the flashing digits at high speed.  
You can set the year in the range of 2000 to 2039. The day of the week is set automatically in accordance with  
the date setting.  
Pressing ̅ or ̃ while the Time Setting Screen is on the display causes the seconds count to be reset to 00.  
Each press of ̅ or ̃ while the 12-hour/24-hour Timekeeping Screen is on the display toggles between  
12-hour and 24-hour timekeeping.  
3. After making the settings you want, use the SET button (3) to display the Normal Timekeeping Screen.  
The clock automatically returns to the Normal Timekeeping Screen if you leave a setting screen on the display  
for about three minutes without performing any operation.  
PM indicator  
Current time  
(Hour, minutes, seconds)  
Alarm on indicator  
GENERAL GUIDE  
1Snooze/Light button  
Press to turn on the backlight for three or four seconds.  
Pressing this button while the alarm is sounding stops the alarm.  
2Alarm Time Set buttons  
Use these buttons to set the alarm time or current time.  
3SET button  
Use this button when setting the current time.  
4RESET button  
Press to reset the clock after replacing batteries.  
5Alarm Switch  
Use this switch to turn the alarm on and off, and to turn on the snooze alarm.  
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