24INSTALLATIONYou are now ready to begin installing the AVR. Before beginning toconnect the various components to the receiver, turn off all devices,including the AVR 7550HD, and unplug their power cords.Don’tplug in any of the power cords until you have finished makingall of your connections.The receiver generates heat. Select a location that leaves severalinches of space on all sides. Avoid completely enclosing the receiverinside an unventilated cabinet. Place components on separateshelves rather than stacking them directly on top of the receiver.Never block the AVR’s ventilation slots on the top and side panels.Doing so could cause the AVR to overheat, with potentially seriousconsequences. Some shelf surface finishes are delicate. Try toselect a location with a sturdy surface finish.TIP: Label each cable before connecting it, to avoid mistakes.Write a description of the cable on a blank adhesive label,e.g., “DVD”, and fold the label around the cable about 6 inchesfrom the end to be plugged into the AVR.Almost all of the following installation steps are optional, dependingon your system. Skip any step that does not apply to your system.STEP ONE – Connect Source DevicesLeaving all AC power cords unplugged, connect the source devicesto the AVR using the audio and video inputs you assigned in Table 2.STEP TWO – Connect TVConnect the system-best video input on the TV to the correspondingvideo monitor output on the AVR.STEP THREE – Connect LoudspeakersAfter you have placed your loudspeakers in the room as explainedon page 21, connect each speaker to its color-coded terminal onthe AVR. Maintain proper polarity by connecting the negative terminalon the speaker (usually colored black) to the negative terminal onthe AVR (also colored black); and the positive terminal on the speaker(usually red) to the positive terminal on the AVR (color varies bychannel; see Table 1 on page 18).If you have a subwoofer, connect its line-level or LFE input to thepurple Subwoofer 1 Output. An optional second subwoofer may beconnected to the Subwoofer 2 Output.NOTE: If the subwoofer only has speaker-level inputs, afteryou have configured the AVR using EzSet/EQ II technology asdescribed on page 29, connect the subwoofer’s left and rightspeaker input terminals to the AVR’s Front Left and Front RightSpeaker Outputs, then connect the front left and right mainspeakers to the subwoofer’s left and right speaker outputterminals. Consult the owner’s manual for the subwoofer forspecific installation instructions.STEP FOUR – Connect DockTo enjoy content stored on a compatible iPod (not included), con-nect The Bridge II dock (included) to its proprietary connector.STEP FIVE – Connect FM AntennaConnect the included FM antenna to the 75-ohm FM antenna terminal.STEP SIX – Connect AM AntennaAssemble the included AM antenna (see Figure 17) and connect itto the AM and Ground antenna terminals. The antenna is not polar-ized, and either lead may be connected to either terminal.Figure 17 – AM Antenna AssemblySTEP SEVEN – Connect XM AntennaModuleIf you have purchased an optional XM antenna module designedfor XM Ready® devices, plug it into the XM jack. Purchase asubscription and activate the module, following the instructionsposted at www.xmradio.com. Place the module within view ofa south-facing window.STEP EIGHT – Connect USB DeviceTo play MP3 or WMA audio files or JPEG still-image files stored ona USB storage device, connect the device to the front-panel USBPort, using a cable or connector that is attached to the device orprovided by you.STEP NINE – Connect AVR to InternetTo use the AVR’s internal Internet Radio tuner to listen to MP3 orWMA audio streams, connect the Network Jack to the Ethernet porton a router or modem that has Internet access, a home network,or directly to a PC. You may need to contact your Internet serviceprovider (ISP), or the manufacturer of your router, to obtain theinformation necessary to set up the network connection. Seepages 36 and 37.STEP TEN – Connect Remote IR Inputsand OutputsThe AVR 7550HD is equipped with a Remote IR Input, a Zone 2Input and both full-carrier and stripped Remote IR Outputs to facilitateuse of your system with a remote control in a variety of situations.When the AVR 7550HD is placed inside a cabinet or facing awayfrom the listener, connect an external IR receiver, such as theoptional Harman Kardon HE 1000, to the Remote IR Input jack. Formultizone operation, connect an optional IR receiver, keypad orother control device to the Zone 2 IR Input for remote control of theAVR 7550HD (and any sources connected to the AVR’s Remote IROutput) from the remote zone. Signals transmitted through the Zone 2IR Input will control source selection and volume for the main orremote zone, depending on the setting of the remote’s Zone Selector.If a source device is shared with the main listening area, any controlcommands issued to that source will also affect the main room.