Harman Kardon AVR 745 Service Manual page 20

AVR745
INSTALLATION AND CONNECTIONS
Both trigger jacks deliver 5 volts DC when activated,
and remove the voltage when they are off. The con-
nection is a 3.5mm mono mini plug with the signal on
the center pin ("tip") and the outer shaft ("ring") acting
as the negative or ground connection.
The Trigger 1 Output is for use with devices
such as power amplifiers that you wish to activate with
whenever the AVR is turned on, regardless of
the input selected.
The Trigger 2 Output is for use with devices
such as video screens or motorized blinds that you
only wish to activate when specific inputs, such as
HDMI, DVD or one of the Video Inputs, are selected.
When a device is connected to the Trigger 2 Output,
the TRIGGER 2 setting on PAGE 2 of the
INPUT/OUTPUT menus must be set to ON.
See page 23 for more information.
After checking for voltage, current and polarity com-
patibility between the device being controlled and the
AVR, simply connect one end of the trigger cable to
the device being controlled and the other end to the
desired Trigger Output on the AVR.
IMPORTANT NOTE ON TRIGGER CONNECTIONS:
The current draw from any one Trigger Jack cannot
exceed 0.5mA. The combined total current draw for
all devices connected when both jacks are in use may
not exceed 1.0mA.
XM Radio Connections
XM Radio is a satellite-delivered, subscription-based,
programming service that provides a wide range of
music, sports, news and information programming with
digital audio quality. The AVR 745 is XM Connect &
Play-ready, which means that you can easily add the
XM service to your home audio system by purchasing
an XM antenna module or Passport system, activating
an account with XM and then making a simple, single-
cable connection to your AVR.
To purchase an XM antenna module or Passport
system, consult your dealer, or contact XM Radio at
www.xmradio.com. After following the instructions
packed with the module, place the XM antenna near
a south-facing window and run the cable to the AVR.
Connect the plug at the end of the cable to the XM
Module Input . If you are using an XM Passport
system, remember that the Passport card must be
inserted for the system to operate. Once the connec-
tion is made, follow the instructions on page 46 for
more information on listening to XM Radio.
18 18 INSTALLATION AND CONNECTIONS INSTALLATION AND CONNECTIONS
NOTES on XM Radio:
• XM Radio requires the purchase of additional,
optional hardware and a separate subscription to
the XM service.
• XM Radio is available only in the Continental United
States and Canada. It is not available in Alaska
or Hawaii.
• XM reception requires that the antenna be able to
"see" the XM satellites or receive a signal from one
of the XM ground-based repeaters. Depending on
your installation and location, XM service may not
be available in some areas.
AC Power Connections
This unit is equipped with an accessory AC outlet
that may be used to power accessory devices, but it
should not be used with high-current draw equipment
such as power amplifiers. The total power draw to
each outlet may not exceed 100 watts.
This Switched AC Accessory Outlet ‡ is powered
only when the unit is on. This is recommended only
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 AVR 745 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 a.
The AVR 745 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.
Once the power cord is connected, you are almost
ready to enjoy the AVR 745's incredible power
and fidelity!
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harman/kardon