Important Safeguards; Power Supply; Battery Operation - Telefunken TF-1709 Instruction Manual

Instruction manual

Important safeguards

• The instruction manual contains important
operating and maintenance instructions. For
your safety, it is necessary to refer to the
manual. Keep the manual for future use.
• Do not hit or drop the unit
• Do not expose the unit to vibration, direct
sunlight, too high or low temperatures or
humidity.
• Do not disassemble the unit yourselves
Refer servicing to qualified service personnel
All the illustrations in this manual are
schematic images, which may differ from
actual objects.

Power supply

Battery operation

• Insert 1 x 3.0 V lithium battery CR2032
(included) to the terminal inside the battery
compartment according to the polarity marks (+
and -). Your set will not work normally from the
battery supply, but there is now the advantage
that, in case of a mains current failure or power
outage, your clock will continue to work. The
clock display will not light up, the clock time
and alarm setting will be held in the clock
memory by the battery back-up system.
This enables you to move the set from place
to place without re-setting the clock every time.
The battery back-up system is only meant to be
used for short-term power failures. For longer
durations the battery may become exhausted or
there may be some deviation in accuracy.
• When the battery is exhausted, it should
be removed from the set to prevent leakage.
If you do not wish to take advantage of the
battery back-up system, your set will work
normally without a battery. However, if
disconnected from the mains, the clock figures
will flash when the mains are reconnected and
you must re-set the clock.
3
DC operation
• The appliance is for household use only.
• Before the first connecting of the appliance
check that the voltage indicated on the rating
label corresponds to the mains voltage in your
location.
• Insert the cord of the power adaptor to
the DC IN jack of the unit.
• Insert the plug into the electrical outlet.
• The set is now working as an electronic
clock.
General operation
Backlight brightness
• Press the button to select
between the levels of display backlight
brightness or to disable the display
completely.
Setting the clock
• Press and hold the SET button.
The time will start to flash.
• Press the ▲ and ▼
to set the hour. Press the SET button after
the hour is set.
• Press the ▲ and ▼
to set the minutes. Press the SET button
after the minute is set.
• Choose the 12- or 24-hour format.
▲ ▼
Press the and buttons to select, SET to
confirm. The time is now set.
• You can press and hold the
the setting to speed up the process.
Setting the alarm
• Press and hold the AL1-2 button to
start the setting of the 1st alarm.
▲ ▼
• Press the and
to set the hour. Press the AL1-2 button
after the hour is set.
▲ ▼
• Press the and
to set the minutes. Press the AL1-2
button after the minute is set.
buttons
buttons
▲ ▼
and during
buttons
buttons