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USER’S GUIDE DQ-643

1

SETTING THE TIME

1. Open the battery compartment cover. Press the 

SET button (

3

3

3

3

3

)

 to cycle through the setting screens as shown

below.

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.

Alarm Off

Alarm On

Day of the week

Current time
(Hour, minutes, seconds)

Snooze on indicator

Alarm time

Alarm on indicator

DATE (month - date)

PM indicator

Month and Day Setting Screen

Time Setting Screen

Normal Timekeeping Screen

Year Setting Screen

12-hour/24-hour Timekeeping Screen

2. While the screen you want is on the display, use the 

Alarm Time Set buttons (

2

2

2

2

2

)

 

 

 

 

 

to change the digits that are

flashing.

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

3

3

3

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.

Press 

 to increase

the flashing digits.

Press 

 to decrease

the flashing digits.

GENERAL GUIDE

1

1

1

1

1

Snooze/Light button

Press to turn on the backlight for three or four seconds.

Pressing this button while the alarm is sounding stops the alarm.

2

2

2

2

2

Alarm Time Set buttons

Use these buttons to set the alarm time or current time.

3

3

3

3

3

SET button

Use this button when setting the current time.

4

4

4

4

4

RESET button

Press to reset the clock after replacing batteries.

5

5

5

5

5

Alarm Switch

Use this switch to turn the alarm on and off, and to turn on the snooze alarm.

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