Harman Kardon AVR 660/230 Service Manual

22INSTALLATIONIf any source devices are equipped with a compatible Remote IR Input, usea 1/8-inch mini-plug interconnect cable (not included) to connect the AVR’sRemote IR Output to the source device’s Remote IR Input.The AVR 760/AVR 660 outputs a “stripped carrier” IR signal through theRemote IR Output, but a full-carrier IR signal is available at the CarrierRemote IR Output. The Carrier Remote IR Output is only available to onesender at a time, which is assigned in the AVR’s Zone 2 menu. Depending onwhether you select Zone 2, Front or A-BUS, the Carrier Remote IR will onlytransmit commands received from the Zone 2 IR Input, the front-panel IRreceiver or the A-BUS system to a device connected to it. This avoids havingconflicting control commands sent to a device from listeners in different areasof the home.To control more than one source device through the Remote IR Output,connect all sources in “daisy chain” fashion, connecting each device’s IR outputto the next device’s IR input, starting with the AVR. Connect devices expectinga full-carrier IR signal to the Carrier Remote IR Output, and assign the desiredsending zone in the Zone 2 menu. Use the Remote IR Output for devicesexpecting a stripped signal.Step eLeVen – Install a multizone SystemThe AVR 760/AVR 660 offers several methods of distributing audio to otherareas in your home, and it also features video distribution.IMPORTANT SAFETY NOTE: Installing a multizone system typicallyrequires running cables inside walls. Always comply with the appropriatesafety codes when installing concealed wiring. Failure to do so may presenta safety hazard. If you have any doubt about your ability to work withelectrical and telecommunications wiring, hire a licensed electrician orcustom installer to install the multizone system.When the system is installed using method B or C below, multizone operationtakes over the Surround Back/ Zone 2 amplifier channels, limiting the systemin the main listening room to 5.2 channels.Select one or all of these methods for audio distribution:Connect an external amplifier to the Zone 2 AudioA.Outputs. It is recommended that you place the amplifier in the sameroom as the AVR 760/AVR 660 so that a shorter length of interconnectcable is used with a long run of speaker wire to the remote room. Along run of interconnect cable would be subject to signal degradation.Depending on your amplifier, distribute the audio signal to a single pair ofspeakers, or to several pairs placed in different rooms.The Zone 2 Audio Outputs offer the benefit of 7.2-channel audio in themain room simultaneously with multizone operation. However, thebenefit is achieved with the expense of an additional component, i.e., theamplifier.Connect the remote room’s speakers directly to theB.Surround Back/Zone 2 Speaker Outputs. Reassign theSurround Back amplifier channels to power the speakers (see AdvancedFunctions Manual).Your main system will be limited to 5.2 channels, affecting playback ofprograms recorded in 6.1 or 7.1 channels.Connect an external amplifier to the Surround Back/ZoneC.2 Preamp Outputs. This method requires an additional amplifier, butmay increase the total number of remote rooms when used with methodsA and B.Connect an A-BUS hub or other A-BUS components to theD.A-BUS port. Use Category 5/5e cable, as described in the instructionsfor your A-BUS components. Connect an optional A-BUS power supplyto the A-BUS Power Port on the AVR. The A-BUS system carries the audiosignal to the remote components, while receiving IR control codes. A hubmay distribute audio to many remote rooms. To control source devicesexclusively from the remote A-BUS module, connect the AVR’s CarrierRemote IR Output to a compatible IR input on the source, and assign thefull-carrier output to the A-BUS system in the AVR’s Zone 2 menu. Thisavoids having conflicting control commands sent to a source intended forthe A-BUS system.IR commands received from the A-BUS system are also distributed to theAVR’s other IR outputs. Visit the Web site at www.harmankardon.com forinformation on available Harman Kardon hubs, the ABH 4 and ABH 4000,and amplified in-wall modules, the AB 1 and AB 2.Connect a Video Display Device or Switcher (AVR 760 only)To add video distribution to your multiroom system, connect the MultizoneVideo Output either directly to the video display in the remote room or to anyoptional video distribution switchers or amplifiers that may be required.NOTES:Only composite video is output to the multizone system.•S-video, component or HDMI video sources may not be routed through•the multizone system. Make a second, composite video connection forthe multizone system.When connecting the• AVR 760 to the remote room’s video display,distance limitations may exist for composite video connections.Although the use of low-loss coax cables may reduce signal loss,optional distribution amplifiers may occasionally be required when longcable runs are used.Connect IR Control Devices to the Zone 2 IR InputFor methods A, B and C, connect an IR control device to the Zone 2 IR Inputfor remote-room control of the multizone system, source devices and volumein the remote zone. An A-BUS system does not require a separate IR controlconnection.NOTE: Only analog audio sources are available to the multizone system.For digital sources, make a second, analog audio connection. The USB, TheBridge II and Internet Radio sources are available to the multizone system.AVR 660 -760, 230V Service ManualPage 21 of 264