Ac Power And Control - Rotel RA-972 Manual De Instrucciones

RA-972 Stereo Integrated Amplifier
The RR-AT92 Remote Control
Some functions can be done with either the
front panel controls, or the supplied RR-AT92
remote control. When these operations are
described, the call out number for both con-
trols is shown. For example, you can select
the source you want to listen to with either the
front panel Listening Selector
mote control buttons .
Remote Sensor
The Remote Sensor picks up the infrared sig-
nals from the remote control. Do not cover or
block the sensor. It must be unobstructed or
the remote control will not work properly. The
operation of the Remote Sensor can also be
affected if it is exposed to bright light, par-
ticularly sunlight. Certain types of lighting, such
as halogen lights, that emit a fair amount of
infrared light, can also interfere with proper
operation. In addition remote control functions
may not work reliably if the batteries in the
RR-AT92 are weak.
Note: Remove the batteries from the re-
mote control if it will not be used for a long
period of time. Do not leave run down bat-
teries in the remote control. Exhausted bat-
teries can leak corrosive chemicals which
will damage the unit.
A Few Precautions
WARNING: To avoid potential damage
to your system, turn off ALL the components
in the system when connecting or discon-
necting the loudspeakers or any associated
components. Do not turn the system com-
ponents back on until you are sure all the
connections are correct and secure. Pay
particular attention to the speaker wires.
There must be no loose strands that could
contact the other speaker wires, or the
chassis of the amplifier.
Please read this manual carefully. It provides
information on how to incorporate the RA-972
into your system as well as information that
will help you get optimum sound performance.
Please contact your authorized Rotel dealer
for answers to any questions you might have.
In addition, all of us at Rotel welcome your
questions and comments.
Save the RA-972 shipping carton and all en-
closed packing material for future use. Ship-
ping or moving the RA-972 in anything other
than the original packing material may re-
sult in severe damage to your amplifier.
Fill out and send in the owner's registration
card packed with the RA-972. Also be sure
to keep the original sales receipt. It is your
best record of the date of purchase, which you
or the re-
will need in the event warranty service is ever
required.
Placement
Like all audio components that handle low-
level signals, the RA-972 can be affected by
its environment. Avoid placing the RA-972 on
top of other components. Also avoid routing
audio signal cables near power cords. This
will minimize the chance it will pick up hum
or interference.
The RA-972 generates heat as part of its
normal operation. The heat sinks and venti-
lation openings in the amplifier are designed
to dissipate this heat. The ventilation slots in
the top cover must be open. There should be
10 cm (4 inches) of clearance around the
chassis, and reasonable airflow through the
installation location, to prevent the amplifier
from overheating.
Remember the weight of the amplifier when
you select an installation location. Make sure
that the shelf or cabinet can support it. We
recommend installing the RA-972 in furniture
designed to house audio components. Such
furniture is designed to reduce or suppress
vibration which can adversely affect sound
quality. Ask your authorized Rotel dealer for
advice about component furniture and proper
installation of audio components.
Cables
Be sure to keep the power cords, digital sig-
nal cables and regular audio signal cables
in your installation away from each other. This
will minimize the chance of the regular au-
dio signal cables picking up noise or inter-
ference from the power cords or digital cables.
Using only high quality, shielded cables will
also help to prevent noise or interference from
degrading the sound quality of your system.
If you have any questions see your authorized
Rotel dealer for advice about the best cable
to use with your system.
6

AC Power and Control

AC Power Input
Because of its relatively high power rating,
the RA-972 can draw considerable current.
Therefore, it should be plugged directly into
a 2-pin polarized wall outlet. Do not use an
extension cord. A heavy duty multi-tap power
outlet strip may be used if it (and the wall outlet)
is rated to handle the current demanded by
the RA-972 and all the other components con-
nected to it.
Your RA-972 is configured at the factory for
the proper AC line voltage in the country where
you purchased it (either 115 volts AC or 230
volts AC with a line frequency of either 50
Hz or 60 Hz). The AC line configuration is
noted on a decal on the back panel.
Note: Should you move your RA-972 am-
plifier to another country, it is possible to
reconfigure it for use on a different line
voltage. Do not attempt to perform this
conversion yourself. Opening the enclosure
of the RA-972 exposes you to dangerous
voltages. Consult a qualified service person
or the Rotel factory service department for
information.
If you are going to be away from home for
an extended period of time such as a month-
long vacation, it is a sensible precaution to
unplug your amplifier (as well as other au-
dio and video components) while you are
away.
Power Indicator
Power Control
Press the front panel Power Switch button, to
turn the RA-972 on. The Power Indicator light
is illuminated when the RA-972 is on. Press
Power button again to turn the RA-972 off.
Once the RA-972 has been turned on with
the front panel power switch, it can be switched
between normal operating mode and standby
mode with the Power button
RR-AT92 remote control. See page 8 for more
information
and
on the