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WARNING
To prevent fire or shock
hazard, do not expose the
unit to rain or moisture.
To avoid electrical shock,
do not open the cabinet.
Refer servicing to qualified
personnel only.
Do not install the
appliance in a confined
space, such as a bookcase
or built-in cabinet.
This symbol is intended to alert the user to
the presence of uninsulated “dangerous
voltage” within the product’s enclosure
that may be of sufficient magnitude to
constitute a risk of electric shock to
persons.
This symbol is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
INFORMATION
This equipment has been tested and found
to comply with the limits for a Class B
digital device, pursuant to Part 15 of the
FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses, and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by
turning the equipment off and on, the user
is encouraged to try to correct the
interference by one or more of the
following measures:
– Reorient or relocate the receiving
antenna.
– Increase the separation between the
equipment and receiver.
– Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
– Consult the dealer or an experienced
radio/TV technician for help.
CAUTION
You are cautioned that any changes or
modification not expressly approved in
this manual could void your authority to
operate this equipment.
Note to CATV system installer:
This reminder is provided to call CATV
system installer’s attention to Article 820-
40 of the NEC that provides guidelines for
proper grounding and, in particular,
specifies that the cable ground shall be
connected to the grounding system of the
building, as close to the point of cable
entry as practical.
Owner’s Record
The model and serial numbers are located
on the rear of the unit. Record the serial
number in the space provided below.
Refer to them whenever you call upon
your Sony dealer regarding this product.
Model No. STR-DE725
Serial No.
Precautions
On safety
Should any solid object or liquid fall into
the cabinet, unplug the receiver and have it
checked by qualified personnel before
operating it any further.
On power sources
• Before operating the receiver, check that
the operating voltage is identical with
your local power supply. The operating
voltage is indicated on the nameplate at
the rear of the receiver.
• 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.
• If you are not going to use the receiver
for a long time, be sure to disconnect the
receiver from the wall outlet. To
disconnect the AC power cord, grasp the
plug itself; never pull the cord.
• One blade of the plug is wider than the
other for the purpose of safety and will
fit into the wall outlet only one way. If
you are unable to insert the plug fully
into the outlet, contact your dealer.
• AC power cord must be changed only at
the qualified service shop.
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.
On operation
Before connecting other components, 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.
If you have any question or problem
concerning your receiver, please
consult your nearest Sony dealer.