Harman Kardon AVR45 Owner's Manual

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Harman Kardon AVR45 Owner's Manual Manual pdf 27 page image

OperationSurround modes are selected using eitherthe front panel controls or the remote. Toselect a surround mode from the frontpanel, simply press the button that corre-sponds to the desired mode ( Ó Ô. To select a surround mode using theremote, press the Surround ModeSelector y, and then press the ⁄ / ¤buttons g to change the mode. Asyou press the buttons, the surroundmode name will appear in the MainInformation Display S, and anindividulal mode indicator will alsolight up D / F / J.Note that the Dolby Digital Mode mayonly be selected when a Dolby Digitalsource is playing. For more informationon Dolby Digital, see the following sectionof this manual.To listen to a program in traditional two-channel stereo, using the front left andfront right speakers only (plus the sub-woofer if installed and configured), pressthe Surround Off button Ú on thefront panel, or follow the insturctionsshown above for using the remote untilSURR OFF appears in the MainInformation Display S. When theAVR45’s surround circuits are turned off,and it is in the Stereo mode, the BYPASSindicator B will illuminate in theInformation Display ˝.Digital Audio PlaybackDolby DigitalDolby Digital (also known as AC-3) is thelatest advancement in surround-soundtechnology, delivering up to five full-range surround channels (left, center,right, left surround and right surround)plus a special dedicated Low-FrequencyEffects (LFE) channel. This represents amajor advancement over traditionalanalog surround in that each surroundchannel is fully discrete and capable offull bandwidth reproduction. DolbyDigital is available on DVD and LV discs,and it will be a part of the new high-definition television (HDTV) systemwhen digital broadcasting begins in1998. Dolby Digital for the home is basedon the same system used to deliver digitalaudio sound tracks in movie theaters,enabling true cinema reproduction inyour home.To utilize the Dolby Digital mode youmust have a digital source properlyconnected to the AVR45. Connect theDigital datastream outputs from DVDplayers, HDTV receivers and CD players tothe AC-3/PCM Coaxial or Opticalinputs on the rear panel ° ·. In orderto provide a backup signal and a sourcefor recording, the analog outputs provid-ed on digital source equipment shouldalso be connected to their appropriateinputs on the AVR45 rear panel (e.g.,connect the analog stereo audio outputfrom a DVD to the DVD inputs ¶ onthe rear panel when you connect thedigital outputs.)When playing back a digital source, firstselect the input using the remote or frontpanel controls as outlined above. Nextselect the digital source by pressing theappropriate Digital Input button wˆ and then using the ⁄ / ¤ buttons gon the remote or the Selector buttons¸ on the front panel to choose eitherCOAXIAL or OPTICAL, as it appearsin the Main Information Display S.Press the Set button i ˜ to enter thedesired choice. When the digital source isplaying, the AVR45 will automaticallydetect if it is a multichannel DolbyDigital source or a conventional PCMsignal, which is the standard output fromCD players. An indicator will light in theInformation Display to confirm the digi-tal signal is AC-3 H or PCM I and ifthe source is OPTICAL E or COAX G.When an AC-3 source is playing, theAVR45 will automatically switch to theDolby Digital surround mode. It is impor-tant to note, however, that not all AC-3sources are encoded with the full comple-ment of five channels plus LFE. When adigital source is playing, the MainInformation Display S will change toshow the input source and digital type(OPTICAL or COAX). When a source withDolby Digital encoding is playing, theinput source name will appear in theInformation Display, followed by anumeric key to the type and numberof channels being decoded as follows:24