Important Safeguards; General Operations; Backlight Brightness - Telefunken TF-1551 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 2 AA (UM-3) batteries (not included)
to the terminals inside the battery
compartment according to the polarity marks
(+ and -). Use only the size and type of
batteries specified.
CAUTION: Danger of explosion if battery is
incorrectly replaced. Replace only with the
same or equivalent type.
• 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 batteries
may become exhausted or there may be
some deviation in accuracy.
• When the batteries are exhausted, they
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 batteries. However, if
disconnected from the mains, the clock
figures will flash when the mains are
reconnected and you must re-set the clock.
3
AC 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 plug into the electrical outlet.
• The set is now working as an electronic
clock.

General operations

Backlight brightness

• Press and hold the DIMMER button
to adjust the display backlight brightness
level (high or low).
Setting the clock
• In standby mode press and hold the
TIME SET button. The display will start to
flash.
• Press the UP/DOWN
buttons to select between a 24- and 12-hour
time format. Press TIME SET to confirm.
• Press the HOUR button
to increase the hour. You can press and hold
the button to increase the number quickly.
• Press the MINUTE button
to increase the minutes. You can press and
hold the button to increase the number quickly.
• Once time is set correctly, press the
TIME SET button again to confirm.
Setting the alarm
• In standby mode press and hold either
AL1 or AL2 buttons to enter the alarm mode.
The time will start to flash on the display.
• Press the HOUR and MINUTE
buttons to adjust the alarm time.
• Press the AL1 or AL2 button, then use
the same buttons to select the alarm signal:
bb (buzzer) or FM radio.
• Once the alarm is set press the TIME
SET button to confirm the setting. The
corresponding alarm indicator will light up
on the display.