OPERATION 41ENGLISHOperationTo select a surround mode using the remotecontrol, press the button for the major surroundmode group that includes the mode you wish tochoose from: Dolby M, DTS Surround N,DTS Neo:6 , Logic 7 O, Stereo orDSP Surround A. The first press of the but-ton will show the current mode from that groupif it is already in use, or the first available modeif you are currently using another mode. To cyclethrough the available modes in that group pressthe button again until the desired mode appearsin the Main Information Display Ò and theon-screen display.To select from the DSP modes (Hall 1, Hall 2,Theater) press the Surround Mode SelectorA repeatedly to scroll through the list of avail-able modes.As the surround modes change, a blue LED willlight next to the current mode in the SurroundMode Indicators ( list on the front panel.Note that the Dolby Digital or DTS modes mayonly be selected when a digital input is in use. Inaddition, when a digital source is present, theAVR will automatically select and switch to thecorrect mode (Dolby Digital or DTS), regardlessof the mode that has been previously selected.For more information on selecting digital sources,see the following section of this manual.When the 6-Channel/8-Channel direct inputs arein use there is no surround processing, as theseinputs take the analog output signals from anoptional, external DVD-Audio or SACD player, oranother source device and carry them straightthrough to the volume control.To listen to a program in traditional two-channelstereo, using the front left and front rightspeakers only (plus the subwoofer, if installedand configured), press the Stereo Button5 until SURR OFF appears in the MainInformation Display Ò.Digital Audio PlaybackDigital audio is a major advancement over olderanalog surround processing systems such asDolby Pro Logic. It delivers five, six or sevendiscrete channels: left front, center, right front,left surround and right surround and with DTSES (see below) even surround back (with left andright). Each channel reproduces full frequencyrange (20Hz to 20kHz) and offers dramaticallyimproved dynamic range and significantimprovements to signal-to-noise ratios. Inaddition, digital systems have the capability todeliver an additional channel that is specificallydevoted to low-frequency information. This is the“.1” channel referred to when you see thesesystems described as “5.1,” “6.1” or “7.1”.The bass channel is separate from the otherchannels, but since it is intentionally bandwidth-limited, sound designers have given it thatunique designation.Dolby DigitalDolby Digital (originally known as AC-3®) is astandard part of DVD, and is available onspecially encoded LD discs and satellitebroadcasts and it is a part of the new high-definition television (HDTV) system.Note that an optional, external RF demodulatoris required to use the AVR to listen to the DolbyDigital sound tracks available on laser discs.Connect the RF output of the LD player to thedemodulator and then connect the digital outputof the demodulator to the Optical or Coaxialinputs *Ó of the AVR.No demodulator is required for use with DVDplayers or DTS-encoded laser discs.DTSDTS is another digital audio system that is capa-ble of delivering 5.1, 6.1 or 7.1 audio. Althoughboth DTS and Dolby Digital are digital, they usedifferent methods of encoding the signals, andthus they require different decoding circuits toconvert the digital signals back to analog.DTS-encoded sound tracks are available onselect DVD and LD discs, as well as on specialaudio-only DTS CDs. You may use any LD, DVDor CD player equipped with a digital output toplay DTS-encoded special audio-only CDs withthe AVR, but DTS-LDs can be played on LD play-ers and DTS-DVDs on DVD players only. All thatis required is to connect the player’s digital out-put to either the Optical or Coaxial input onthe rear panel or front panel *Ó.In order to listen to DVDs encoded with DTSsound tracks, the DVD player must be compati-ble with the DTS signal as indicated by a DTSlogo on the player’s front panel. Note that earlyDVD players may not be able to play DTS-encoded DVDs. This does not indicate a problemwith the AVR, as some players cannot pass theDTS signal through to the digital outputs. If youare in doubt as to the capability of your DVDplayer to handle DTS DVDs, consult the player’sowner’s manual.Please note that some DVD players are shippedwith their output set for Dolby Digital only. Toinsure that DTS data is being sent to the AVR,please check the setup menu system on yourDVD player to make certain that DTS data out-put is enabled.PCM Audio PlaybackPCM (Pulse Code Modulation) is the non- com-pressed digital audio system used for compactdiscs, Non-Dolby Digital/DTS Laserdiscs andsome special PCM encoded DVDs. The digital cir-cuits in the AVR are capable of high quality digi-tal-to-analog decoding, and they may be con-nected directly to the digital audio output of yourCD/DVD or LD player (LD only for PCM or DTSprograms, for Dolby Digital laser discs an RFadapter is needed, see ”Dolby Digital” above).Connections may be made to either the Opticalor Coaxial inputs on the rear panel or thefront panel Digital Inputs *Ó.To listen to a PCM digital source, first select theinput for the desired source (e.g., CD) to feed itsvideo signal (if any) to the TV monitor and toprovide its analog audio signal for recording.Next press the Digital Select button Û Gand then use the ⁄ / ¤ buttons D on theremote, or the Selector buttons 7 on the frontpanel, until the desired choice appears in theMain Information Display Ò, then press theSet button @ F to confirm the choice.During PCM playback the unit automatically willturn to the default surround mode or to theLOGIC 7 mode but you also may select anysurround mode except Dolby Digital or DTS.Selecting a Digital SourceTo utilize either digital mode you must haveproperly connected a digital source to the AVR.Connect the digital outputs from DVD players,HDTV receivers, satellite systems or CD playersto the Optical or Coaxial inputs on the rear orfront panel *Ó. In order to provide abackup signal and a source for analog stereorecording, the analog outputs provided on digi-tal source equipment should also be connectedto their appropriate inputs on the AVR rear panel(e.g., connect the analog stereo audio outputfrom a DVD to the DVD Audio inputs onthe rear panel when you connect the source’sdigital outputs).To select a digital source such as DVD, firstselect its input using the remote or front panelInput Selector 4% as outlined in this man-ual in order to feed its video signal (if any) to theTV monitor and to provide its analog audio sig-nal for recording. When the digital input associ-ated with the input selected (e.g. “DVD”) is notselected automatically (due to the input settingsmade earlier during the system configuration,see page 21), select the digital source by press-ing the Digital Input Selector button G Ûand then using the ⁄/¤ buttons D on theremote or the Selector buttons 7 on the frontpanel to choose any of the OPTICAL orCOAXIAL inputs, as they appear in the MainInformation Display Ò or on-screen display.