Casio Dqd70B DQD 70B

DQD-70B DQD70B_EN

DQD-70B to the manual 57f6e3b3-b923-48f1-9630-2381fb84ba73

DQD-70B DQD70B_EN DQD-70B | Timepieces (Clocks) | Manuals | CASIO

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MA0506-EA

Operation Guide DQD-70B
• A sticker is affixed to the glass of this clock when you purchase it. Be sure to remove the sticker before using the clock.
• Depending on its model number, the configuration of your clock may differ somewhat from that shown in the illustration.

ILLUSTRATION

Receive indicator
(Displayed during
signal reception.)

Alarm Off

Snooze Alarm On
Snooze on indicator

Antenna icon
PM indicator

SNZ
ON
OFF
ALARM

SNZ
ON
OFF

ALARM
SET

Wave OK indicator
Current time
(Hour, minutes,
seconds)

ALARM
SET

ALARM

SET

DEMO

RESET
WAVE

Date (month - day)

Day of the week

Alarm on indicator

Alarm time

GENERAL GUIDE

SET

DEMO

RESET
WAVE

1 SNOOZE/LIGHT button
• Press this button to illuminate the display for about five seconds.
• Pressing this button while the alarm is sounding stops the alarm.
2 Alarm Mode selector
SNZ: Snooze alarm on
ON: Alarm on
OFF: Alarm off
3 SET button
Use this button when setting the current time.
4 DEMO button
Press this button to sound the alarm.
5 RESET button
Press this button to reset the clock after replacing its batteries.
6 WAVE button
Press this button to receive the time calibration signal and adjust timekeeping.
7 Alarm Time Set buttons
Use these buttons to change the alarm time or current time setting.

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Operation Guide DQD-70B
TIME CALIBRATION SIGNAL RECEPTION PRECAUTIONS

Rugby

• This clock can receive the time calibration signals transmitted from
Mainflingen, Germany and Rugby, England. It automatically selects
reception from the transmitter whose signal is strongest.
Mainflingen: Signal reception is possible within approximately 1800 km
of the transmitter.
Rugby: Signal reception is possible within approximately 1800 km of the
transmitter.
• Even when the clock is within the reception range, signal reception is
impossible if the signal is blocked by mountains or other geological
formations between the clock and signal source.
• Signal reception is affected by weather, atmospheric conditions, and
seasonal changes.
• The time calibration signal is bounced off the ionosphere. Because of
this, such factors as changes in the reflectivity of the ionosphere, as well
as movement of the ionosphere to higher altitudes due to seasonal
Mainflingen
atmospheric changes or the time of day may change the reception range
1,800 kilometers
of the signal and make reception temporarily impossible.
• Reception is best when the back of the clock is facing in the direction of the transmitter. As a general rule, point
the back of the clock towards the transmitter that is closest to your location. If you experience reception problems,
try pointing it in the direction of the other transmitter. Note, however, that moving the clock while the time
calibration signal receive operation is taking place will make stable reception impossible.
• Think of the clock as acting like a TV or radio when it is receiving the calibration signal. When receiving indoors,
move to a location as near as possible to a window. Proper signal reception can be difficult or even impossible
under the conditions listed below.

Unsuccessful Signal Reception
The antenna icon disappears from the display if no signal receive operation is successful during a continuous
24-hour period. If this happens, try changing the position or orientation of the clock, and press the WAVE button
(6) to receive again.

Manual Receive

• Press the WAVE button (6) to start a calibration signal receive operation.
• Use the WAVE button (6) to perform a receive operation after replacing the clock’s batteries or if the auto receive
operation was not performed correctly for some reason.
• The antenna icon appears when signal reception triggered by the WAVE button (6) is successful.

Important!
•
•
•
•

Do not perform any button or switch operation while a signal receive operation is in progress.
The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.
The DST indicator appears on the display when Daylight Saving Time (summer time) data is received.
Note that Daylight Saving Time (summer time) is turned on and off in accordance with the received time
calibration signal only. You cannot turn it on or off manually.

Setting the Time and Date Manually

• When using the clock in an area that is outside of the range of the transmitter or in an area where signal reception
is impossible for some reason, you need to manually adjust the time setting as required.
1. Press the SET button (3) to cycle through the setting screens as shown below.
Current Time Screen

GMT Differential
Setting Screen

Inside, among
buildings, or near
neon signs

Inside a vehicle

Near refrigerators
or other household
appliances, near
office equipment,
mobile phones or
wireless LAN
devices.

Near a construction Near high-tension
site, airport, or other power lines
sources of electrical
noise, underground
or in tunnels, near
railroads, highways,
or radio stations with
interfering
frequencies.

Contrast
Adjustment Screen

Among or behind
mountains
Year Setting Screen

Month and Day
Setting Screen

Time Setting Screen

12-hour/24hour
Setting Screen

• Signal reception is normally better at night than during the day.
• Radio interference can make signal reception impossible.
• Strong electrostatic charge can result in the wrong time being set.

USING THE CLOCK
This clock can receive the time calibration signals transmitted from Mainflingen, Germany and Rugby, England.
It automatically selects reception from the transmitter whose signal is strongest.
Any of the following procedures can be used to set current date and time.
• Auto receive of the time calibration signal
• Manual receive of the time calibration signal
• Manual setting without using the time calibration signal

Auto Receive

• This clock performs a 1-minute receive operation each hour.
• A signal receive operation takes from two to fourteen minutes under good signal conditions.
• As the clock receives a time calibration signal, current signal strength is indicated by the receive indicator, which
is a horizontal line above the current time.
• A longer receive indicator line means better signal reception.

Antenna Icon
The antenna icon appears when at least one signal receive operation is successful during a day. The antenna
icon is cleared at 2 a.m. and 3 a.m. each day, and will reappear as soon as a subsequent signal receive
operation is successful.

Wave OK Indicator
The Wave OK indicator is displayed when there has been a successful receive operation within the last hour.
This indicator disappears at the top of each hour, or when you perform a manual receive operation.

2

Operation Guide DQD-70B
2. While the screen you want is on the display, use the
Alarm Time Set buttons (7) to change the digits
that are flashing.
• Holding down + or – changes the flashing digits at
high speed.
• Your GMT differential is a value that indicates the time
difference between your current location and
Greenwich Mean Time (GMT). You can find out the
GMT differential of your location by checking the
nearby map.
• You can set the year in the range of 2000 to 2099.
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
Setting Screen is on the display toggles between
12-hour and 24-hour timekeeping.
• You can select one of 16 levels for the contrast
setting. Select the setting that makes the display easy
to read.
3. After making the settings you want, use the SET
button (3) to display the Current Time Screen.
• The clock automatically returns to the Current Time
Screen if you leave a setting screen on the display for
about three minutes without performing any operation.

BATTERY REPLACEMENT
Press + to increase
the flashing digits.
Press – to decrease
the flashing digits.

GMT differential

: 0H

: 1H

: 2H

: 3H

Replace batteries whenever the display of the clock becomes dim and difficult to read.
1. Open the battery compartment cover as shown in the illustration.
2. Remove both of the old batteries.
3. Load two new batteries. Make sure that their positive (+) and negative (–) ends face in the correct directions. If
you load batteries incorrectly, they can burst and damage the clock.
4. Press the RESET button (5). Be sure to press the RESET button (5) after replacing batteries.
5. Replace the battery compartment cover.

Battery precautions
•
•
•
•
•
•
•

Keep batteries out of the reach of small children. If a battery is accidentally swallowed, contact your physician immediately.
Be sure to load the batteries with their positive (+) and negative (–) ends facing correctly.
Never mix old and new batteries, or batteries of different brands.
Never charge the batteries that come with the clock.
Should batteries ever leak while in the clock, wipe out the fluid with a cloth, taking care not to let any get onto your skin.
Replace the batteries at least once a year, even if the current batteries are working properly.
The batteries that come with the clock lose some of their power during transport and storage.

USING THE ALARM
The alarm sounds when the alarm time you set is reached. You can also use the Alarm Mode selector (2) to
select the snooze alarm feature.

Setting the Alarm Time

Press + to increase
the alarm time setting.

Use the Alarm Time Set buttons (7) to set the alarm
time.
Pressing the Alarm Time Set buttons (7) causes the
alarm time to appear in place of the date on the display.
• Holding down + or – changes the digits at high speed.

Press – to decrease
the alarm time setting.

Turning the Alarm On and Off
Use the Alarm Mode selector (2) on the side of the clock to turn the alarm on and off, and to select the snooze feature.
Alarm Mode selector

Description

SNZ

The alarm sounds at the preset time for one minute, and seven more times every five
minutes thereafter. Even if you stop the alarm sound by pressing the SNOOZE/LIGHT
button ( ), the alarm operation is performed again five minutes later.
• The indicator (
activated.

) flashes on the display to indicate that the snooze feature is

ON
The alarm sounds at the preset time for one minute.
OFF

The alarm does not sound.

• The alarm time appears in place of the date on the display whenever the Alarm Mode selector (2) is set to ON
or SNZ.
• The alarm sound changes over four levels as it sounds.

Stopping the Alarm

• When alarm is sounding, press the SNOOZE/LIGHT button (1) to stop it. When the snooze feature is turned on,
the alarm will sound again in about five minutes.
• To turn off the snooze feature, slide the Alarm Mode selector (2) to OFF.

USING THE LIGHT
Pressing the SNOOZE/LIGHT button (1) turns on the light and illuminates the display for easy reading in the dark.

Important!
• Overuse of the light can shorten battery life.

3