Sony STR-DN840 Operating Instructions Manual page 105

On placement
• Place the receiver in a location with
adequate ventilation to prevent heat
buildup and prolong the life of the
receiver.
• Do not place the receiver near heat
sources, or in a place subject to direct
sunlight, excessive dust, or mechanical
shock.
• Do not place anything on top of the
cabinet that might block the ventilation
holes and cause malfunctions.
• Do not place the receiver near equipment
such as a TV, VCR, or tape deck. (If the
receiver is being used in combination
with a TV, VCR, or tape deck, and is
placed too close to that equipment, noise
may result, and picture quality may
suffer. This is especially likely when
using an indoor antenna (aerial).
Therefore, we recommend using an
outdoor antenna (aerial).)
• Use caution when placing the receiver on
surfaces that have been specially treated
(with wax, oil, polish, etc.) as staining or
discoloration of the surface may result.
On operation
Before connecting other equipment, be sure
to turn off and unplug the receiver.
On cleaning
Clean the cabinet, panel, and controls with
a soft cloth slightly moistened with a mild
detergent solution. Do not use any type of
abrasive pad, scouring powder, or solvent,
such as alcohol or benzine.
On Bluetooth
communication
• Bluetooth devices should be used within
approximately 10 meters (33 feet)
(unobstructed distance) of each other.
The effective communication range may
become shorter under the following
conditions.
– When a person, metal object, wall or
other obstruction is between the
devices with a Bluetooth connection
– Locations where a wireless LAN is
installed
– Around microwave ovens that are in
use
– Locations where other electromagnetic
waves occur
• Bluetooth devices and wireless LAN
(IEEE 802.11b/g) use the same frequency
band (2.4 GHz). When using your
Bluetooth device near a device with
wireless LAN capability, electromagnetic
interference may occur. This could result
in lower data transfer rates, noise, or
inability to connect. If this happens, try
the following remedies:
– Use this receiver at least 10 meters
(33 feet) away from the wireless LAN
device.
– Turn off the power to the wireless LAN
equipment when using your Bluetooth
device within 10 meters (33 feet).
– Install this receiver and Bluetooth
device as closer to each other as
possible.
• The radio waves broadcast by this
receiver may interfere with the operation
of some medical devices. Since this
interference may result in malfunction,
always turn off the power on this receiver
and Bluetooth device in the following
locations:
– In hospitals, on trains, in airplanes, at
gas stations, and any place where
flammable gasses may be present
– Near automatic doors or fire alarms
• This receiver supports security functions
that comply with the Bluetooth
specification to ensure secure connection
during communication using Bluetooth
technology. However, this security may
be insufficient depending on the setting
contents and other factors, so always be
careful when performing communication
using Bluetooth technology.
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