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Harman Kardon AVR7300 Manual

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20 INSTALLATION AND CONNECTIONS
INSTALLATION AND CONNECTIONS
use the full 7.1-channel capabilities of the AVR 7300
in the main listening room, but you will be able to
add another listening room without external power
amplifiers. To use the internal amplifiers to power a
remote zone, connect the speakers for the remote
room location to the Surround Back/Multiroom
Speaker Outputs ç. Before using the remote
room, you will need to configure the amplifiers
for surround operation by changing a setting
(following the instructions shown on page 44) in
the MULTI-ROOM SETUP menu.
NOTE: For all options, you may connect an optional
IR sensor in the remote room to the AVR 7300 via
an appropriate cable. Connect the sensor’s cable to
the Multiroom IR Input B on the AVR 7300 and
use the Zone II remote to control the room volume.
Alternatively, you may install an optional volume control
between the output of the amplifiers and the speakers.
Multiroom Video Connections
The AVR 7300’s multiroom system is designed to
send both video and audio signals to a remote room
location. This may be the same source that is in use
in the main room, or you may select a separate input
source through the Multiroom menus or remote, as
explained on page 45.
The only additional connection required to add video
capabilities to your multiroom system is to connect the
Multiroom Video Outputs O either directly to the
video display in the remote room or to any optional
video distribution amplifiers that may be required when
the length of the connection cable is such that addi-
tional amplification is required.
The following items may be of additional assistance
when using video as part of a multiroom system with
the AVR 7300:
• Component video sources may not be routed through
the multiroom system. When using a component video
device, you should also make a composite or S-Video
connection to permit use of the multiroom system.
• As with all cable installations, when running any wiring
inside a wall be certain that the cable carries the
proper NEC rating for the application. The use of
improperly rated cables may present a safety hazard.
Consult a qualified installer or licensed electrician
should you have any questions about the use of in-
wall cables for video or audio.
• When connecting the AVR 7300 to the remote
room video display, be aware of the distance limi-
tations that may exist for both composite and S-
Video connections. Although the use of low-loss
coax for composite video and higher-grade S-
Video cables may reduce signal loss, optional dis-
tribution amplifiers may occasionally be required
when long cable runs are used.
A-BUS
®
Installation Connections
The AVR 7300 is among the very few receivers avail-
able today that offer built-in A-BUS Ready
®
operation.
When used with an optional A-BUS keypad or control
module, you have all the benefits of remote zone
operation without the need for an external power
amplifier.
To use the AVR 7300 with an approved A-BUS prod-
uct, simply connect the keypad or module that is in
the remote room to the AVR 7300 using standard
Category 5 wiring that is properly rated for the in-wall
use specific to the installation. Terminate the wiring
at the receiver end to a standard RJ-45 connector,
in compliance with the instructions furnished with the
A-BUS module.
No further installation or adjustment is needed, as the
A-BUS jack on the AVR 7300 routes the signals in
and out of the keypad to their proper destination for
power, signal source and control. The output fed to
the A-BUS jack is determined by the AVR 7300’s
multiroom system and menus.
RS-232 Connections
The AVR 7300 is equipped with an RS-232 Port S
that may be used for two purposes. When the port is
connected to a compatible, optional, external computer,
keypad or control system, the AVR 7300 is capable of
bi-directional communications that enable the external
system to control the AVR; and the AVR is able to
report status and handshake data back to the con-
troller. Use of the RS-232 port for this type of control
requires specific technical knowledge, and we recom-
mend that any connection and programming for con-
trol be made by a trained installer or technician familiar
with the equipment being used.
The RS-232 port may also be used as an access
point through which the AVR 7300’s operating system
and surround mode memories may be updated via
connection to a compatible computer. At the time
that an upgrade is available, instructions for making
the connection and installing the upgrade will be
available through the Product Support area of the
Harman Kardon Web site at harmankardon.com.
The physical connection to the AVR 7300’s RS-232
port is a standard D-SUB 9 connection but to ensure
compatible and proper operation, specific software
commands and pin wiring schemes may be required.
Trigger Jack Connection
The AVR 7300 is equipped with a low-voltage Amp
Trigger Jack A that may be used to activate option-
al, external power amplifiers, screen motors, motorized
blinds or other compatible products that may be part
of a home theater installation. Once the connections
are made, operation is seamless in that the low-volt-
age control signal is sent to the screen, blinds or other
device when the AVR 7300 is turned on, and it is
turned off along with the AVR. Due to the complexity
of interfacing with power-controlled devices, we
strongly recommend that the installation be
done by a qualified installer.
The AVR 7300’s trigger jack is a 3.5mm mono miniplug
that delivers a 6-volt DC signal to the center pin (“tip”) of
the plug (+) with the outer shaft (“ring”) of the plug as the
negative (–) or ground connection. After checking for
polarity, voltage and current draw compatibility between
the AVR and the product to be controlled, simply connect
the miniplug to the Amp Trigger Jack A on one end
and to the device to be controlled on the other. No further
programming is required.
AC Power Connections
The AVR 7300 features a removable power cord
that allows wires to be run in advance to a complex
installation so that the unit itself need not be installed
until it is ready for connection. When all needed
connections have been made, connect the AC
Power cord to the AC Power Cord Jack P.
The AVR 7300 draws significantly more current than
other household devices, such as computers, that use
removable power cords. For that reason, it is important
that only the cord supplied with the unit (or a direct
replacement of identical capacity) be used.
The Switched AC Accessory Outlet R is powered
only when the unit is on. This is recommended for
devices that have a mechanical power switch that may
be left in the “ON” position.
NOTE: Many audio and video products go into a
Standby mode when they are used with switched out-
lets. This type of product may not operate properly
when used with the switched outlet.
The Unswitched AC Accessory Outlet Q is
powered as long as the AVR is plugged into a
powered AC outlet.
Once the power cord is connected, you are almost
ready to enjoy the AVR 7300’s incredible power
and fidelity!
20 INSTALLATION AND CONNECTIONS
AVR7300(120v)-OM 6/14/04 9:15 AM Page 20
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