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Additional Information 39
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Additional Information
On battery
• Insert the batteries with the correct
polarity.
• Do not mix new and used batteries.
• The batteries cannot be charged.
• Remove the batteries when the unit
will not be used for a long time.
• Should any battery leakage occur,
wipe the battery case well and install
new batteries.
On placement
• Do not leave the unit in a location
near heat sources, or in a place
subject to direct sunlight, excessive
dust or mechanical shock.
• If the unit is left in a car parked in
the sun, be sure to choose a location
in the car where the unit will not be
subjected to the direct rays of the
sun.
• Use the unit within a temperature
range of 0°C to 40°C (32°F to 104°F).
If it is used in temperatures outside
this range, an irregular display (i.e.,
88.88...) may appear. If it is used in
temperatures lower than this range,
the display may change very slowly.
These irregularities will disappear
and there will be no damage to the
unit when the unit is used in its
recommended temperature range.
• In vehicles or buildings, radio-
reception may be difficult or noisy.
Try listening near a window.
• Reception of around 3.64 MHz may
be difficult because of internal
spurious signals generated by the
built-in oscillators.
On safety
• The unit is not disconnected from
the AC power source (mains) as long
as it is connected to the wall outlet,
even if the unit itself has been
turned off.
• Disconnect the AC power adaptor
from the wall outlet when the unit is
not to be used for a long period of
time.
• The name plate indicating operating
voltage, etc., is located at the rear of
the unit.
• Should any solid object or liquid fall
into the unit, unplug the unit, and
have it checked by qualified
personnel before operating it any
further. Make sure that no liquid or
foreign material enters the DC IN 3V
jack of the unit. This may lead to the
malfunction of the unit.
• When the casing becomes soiled,
clean it with a soft dry cloth
dampened with mild detergent
solution. Never use abrasive
cleansers or chemical solvents, as
they may mar the casing.
• Since a strong magnet is used for the
speaker, keep personal credit cards
using magnetic coding or spring-
wound watches away from the unit
to prevent them from possible
damage caused by the magnet.
• When there is lightning and you are
using an external antenna,
immediately disconnect the AC
power adaptor (if connected) from
the wall outlet. Never touch the
antenna wire when there is a
lightning storm.
• Never connect a ground wire to a
gas pipe
Precautions and Maintenance