Harman-Kardon AVR 645 Selecting a Digital Source, Digital Bitstream Indicators, USB Playback

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Operation

Selecting a Digital Source

To utilize either digital mode you must have properly connected a digital source to the AVR. Connect the digital outputs from DVD players, HDTV receivers, satellite systems or CD players to the Optical or Coaxial inputs on the rear or

front panel *Ó. In order to provide a backup signal and a source for analog stereo recording, the analog outputs provided on digital source equipment should also be connected to their appropriate inputs on the AVR rear panel (e.g., connect the analog stereo audio output from a DVD to the DVD Audio inputs on the rear panel when you connect the source’s digital outputs).

To select a digital source such as DVD, first select its input using the remote or front panel Input Selector 4% as outlined in this manual in order to feed its video signal (if any) to the TV monitor and to provide its analog audio signal for recording. When the digital input associated with the input selected (e.g. “DVD”) is not selected automatically (due to the input settings made earlier during the system configuration, see page 23), select the digital source by pressing the Digital Input Selector button G Û and then using the ⁄/¤ buttons E on the remote or the Selector buttons 7$ on the front panel to choose any of the OPTICAL or COAXIAL inputs, as they appear in the Upper Display Line ˜ or on-screen display.

When the digital source is playing, the AVR will automatically detect whether it is a multichannel Dolby Digital or DTS source, MP3 or conventional PCM signal, which is the standard output from CD players.

Note that a digital input (e.g. coaxial) remains associated with any analog input (e.g. DVD) as soon as it is selected, thus the digital input need not be re-selected each time the appropriate input choice (e.g. DVD) is made.

Digital Bitstream Indicators

When a digital source is playing, the AVR senses the type of bitstream data that is present. Using this information, the correct surround mode will automatically be selected. For example, DTS bit- streams will cause the unit to switch to DTS decoding, and Dolby Digital bitstreams will enable Dolby Digital decoding. When the unit senses PCM data, from CDs and LDs and some music DVDs or certain tracks on normal DVDs, it will allow the appropriate surround mode to be selected manually. Since the range of available surround modes depends on the type of digital data that is present, the AVR uses a variety of indicators to let you know what type of signal is present. This will help you to understand the choice of modes and the input channels recorded on the disc.

When a digital source is playing, the AVR will display a variety of messages to indicate the type of bitstream received. These messages will appear shortly after an input or surround mode is changed, and will remain in the Main Infor- mation Display ˜ for about five seconds before the display returns to the normal surround mode indication.

For Dolby Digital and DTS sources, a three digit indication will appear, showing the number of channels present in the data. An example of this type of display is 3/2/.1.

The first number indicates how many discrete front channel signals are present.

•A 3 tells you that separate front left, center and front right signals are available. This will be displayed for Dolby Digital 5.1 and DTS 5.1 programs.

•A 2 tells you that separate front left and right signals are available, but there is no discrete center channel signal. This will be displayed for Dolby Digital bit streams that have stereo program material.

•A 1 tells you that there is only a mono channel available in the Dolby Digital bitstream.

The middle number indicates how many discrete surround channel signals are present.

•A "3" tells you that separate, discrete left surround, center surround and right surround signals are present. This is available only on discs with DTS-ES digital audio.

•A 2 tells you that separate surround left and right signals are available. This will be displayed for Dolby Digital 5.1 and DTS 5.1 programs.

•A 1 tells you that there is only a single, surround encoded surround channel. This will appear for Dolby Digital bit streams that have matrix encoding.

•A 0 indicates that there is no surround channel information. This will be displayed for two- channel stereo programs.

The last number indicates if there is a discrete Low Frequency Effects (LFE) channel. This is the “.1” in the common abbreviation of “5.1” sound and it is a special channel that contains only bass frequencies.

•A .1 tells you that an LFE channel is present. This will be displayed for Dolby Digital 5.1 and DTS 5.1 programs, as available.

•A 0 indicates that there is no LFE channel information available. However, even when there is no dedicated LFE channel, low fre- quency sound will be present at the subwoofer output when the speaker configuration is set to show the presence of subwoofer.

•The information in the right side of the display will tell you if the digital audio data contains a special flag signal that will automatically activate the appropriate 6.1 or 7.1 mode. This will be shown as EX-ON or EX-OFF for Dolby Digital bitstreams and ES-ON or ES-OFF for DTS bitstreams.

When Dolby Digital 3/2/.1 or DTS 3/2/.1 signals are being played, the AVR will automatically switch to the proper surround mode, and no other processing may be selected. When a Dolby Digital signal with a 3/1/0 or 2/0/0 signal is detected you may select any of the Dolby surround modes.

It is always a good idea to check the readout for the channel data to make certain that it matches the audio logo information shown on the back of a DVD package. In some cases you will see indication for “2/0/0” even when the disc contains a full 5.1, or 3/2/.1 signal. When this happens, check the audio output settings for your DVD player or the audio menu selections for the specific disc being played to make certain that the player is sending the correct signal to the AVR.

USB Playback

The AVR 645 is among the very few A/V receivers capable of direct connection to a computer for audio playback. Once the AVR is connected, audio streams and playback are possible through your AVR, with all the power and performance of the high-current amplifier, your own speakers, and the enhanced multichannel playback made possible through the use of Logic 7, Dolby Pro Logic II/IIx or DTS Neo:6 processing.

The AVR’s USB connectivity may be used with PC-compatible computers running either Microsoft® Windows® 2000 with Service Pack 4 or higher installed, or Windows XP® or Windows XP Media Center Edition with Service Pack 1 or higher installed. Connect one of the available USB jacks on your computer or a USB hub to the USB Jack on the AVR using a cable with a standard USB plug on one side and a USB “Mini B” plug on the other side.

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Contents AVR 645 Audio/ Video Receiver Declaration of Conformity Table of ContentsIntroduction Description and FeaturesImportant Safety Information Introduction / Safety InformationUnpacking Front Panel Controls Coaxial Ó To select between the OpticalMore information Digital Audio Rear Panel ConnectionsSurround Left Blue Surround Right Gray Surround Back Left Surround Back Right Tan Subwoofer LFEMonitor Component Video Outputs AC Power Cord Jack Connect the ACDigital Audio Outputs Connect these Digital recorder such as a CD-R or MiniDisc recorder+ and negative terminals AVR 645 when appropriate upgrades are availableRemote IR Carrier Output The output Light Button Main Remote Control FunctionsChannel Direct Inputs the input Disc Skip Button This button has no MoviesMain Remote Control Functions Power Off B AVR Selector Zone II Remote Control Functions The Bridge /DMP Selector Optional is connected to Digital Media Player DMP ConnectorOutput jacks Installation and ConnectionsAudio Equipment Connections Analog Video Equipment ConnectionsConnection Notes Hdmi ConnectionsHdmi Input Connections Video InputsImportant Note for Adapter Cables Hdmi Output ConnectionsScart A/V Connections To the Video 2 or Video 3 Video AudioImportant Note for the Use SCART-Cinch Adapters With Scart that cannot be switched and pro- vided by the AVRMultiroom IR Link System and Power ConnectionsMain Room Remote Control Extension BUS Installation ConnectionsUSB Connections Speaker PlacementAC Power Connections Speaker SelectionChannel system for your main listening area see To manually configure your surround back speakerFirst Turn On System ConfigurationUsing the On-Screen Display System SetupIn/Out Setup C O U T A L O G Audio Setup Video Monitor SettingsSurround Setup Button FQ Surround Config then press the SetNight Mode Settings Using EzSet/EQC K R F I E L D E Q So that on is highlighted and press the Set Button FSpeaker Size Menu Manual SetupSpeaker Size Small LFE Low-Pass-Filter SettingSubwoofer Size Sub Mode SettingDelay Settings Following options are availableOutput Level Adjustment Setup Volume until you can hear the test noise clearlyAdditional Input Adjustments Operation Surround Mode ChartChannel Channel presentation of two-channel stereo programs TheaterSource Selection Basic OperationChannel/8-Channel Direct Input Volume Up/Down Buttons Surround Mode SelectionRepeatedly to scroll through the list of available modes Rear panel Or front panel *Ó Digital Audio PlaybackUntil Surr OFF appears in the Main Information Display ˜ Dolby DigitalSelecting a Digital Source Digital Bitstream IndicatorsUSB Playback Audio, while the main feature is available Speaker/Channel IndicatorsNight Mode Puts for Tape Outputs UsingTape Recording Front Panel In/OutputsEzSet/EQ On/Off Output Level Adjustment With Source SignalsMemory Backup Normal output level adjustment forDisplay Brightness Advanced FeaturesTurn On Volume Level Front-Panel-Display FadeFull-OSD Time Out Adjustment Semi-OSD SettingsDMP/ TheBridgeTMAuto Power Multiroom Operation Multiroom OperationFull Carrier IR Output Infrared Output SelectionMultiroom IR Input IR OutputBasic Tuner Operation Tuner OperationRDS Operation Up/Down button # until RDS only appears in the display Program Search PTYButton F appears Configuring the RemotePreprogrammed Code Entry ForAutomatic Code Entry Learning CommandsDevice Priority Learning Codes for an Input SelectorPress the ¤ Navigation Button E until Macro Programming Changing DevicesErasing a Macro Power On VID 2/TV VID 3/Cable AVR Logic 7 OAt the next menu screen press Buttons Punch-Through ConfigurationVolume Punch-Through Returning the Volume Control Settings to Default OperationNavigation Buttons E until Returning the Channel Control Settings to Default OperationAt the next menu screen, press the ⁄¤ Transport Punch-Through‹ /› Navigation Buttons E as required RenamingAt this point you have two options Resetting the RemoteSee page 54 for more information Backlight Options Additional Notes on Configuring and Operating the RemotePress the AVR Selector B Troubleshooting GuideProcessor Reset Power Switch 1 is pushedVideo Input Defaults System DefaultsSystem Default and Personal Settings Worksheets Worksheet C Delay Defaults and Setting Worksheet B Surround Configuration Defaults and SettingsWorksheet D System Defaults and Settings USB Worksheet E Input SettingsTechnical Specifications Harman Consumer Group, Inc

AVR 645 specifications

The Harman-Kardon AVR 645 is a standout receiver that appeals to audiophiles and home theater enthusiasts alike. This model is known for its rich sound quality, extensive features, and user-friendly interface, making it a solid choice for anyone looking to enhance their home entertainment experience.

At the heart of the AVR 645 is its robust amplification system. With a power output of 55 watts per channel at 8 ohms, the receiver provides ample power to drive a variety of speakers. The incorporation of Harman-Kardon's patented Logic 7 processing technology allows for an immersive surround sound experience, creating a sense of depth and realism in audio playback. This feature is particularly beneficial for film and gaming, as it helps to create a multidimensional soundstage that pulls viewers into the action.

The AVR 645 supports a variety of audio formats, including Dolby Digital, DTS, and Pro Logic II, ensuring compatibility with a wide range of media. The receiver is equipped with multiple audio inputs and outputs, including HDMI, optical, and coaxial connections, allowing users to easily connect their DVD players, gaming consoles, and other devices. Additionally, it features a built-in AM/FM tuner for those who enjoy traditional radio.

In terms of video capabilities, the AVR 645 is highly versatile, supporting both standard and high-definition video formats. The receiver includes multiple HDMI inputs, facilitating easy switching between different high-definition sources without compromising video quality. The ability to upconvert lower resolution video to near-HD quality further enhances the viewing experience, making it a great choice for those with diverse video content.

User-friendliness is another highlight of the AVR 645. The intuitive on-screen user interface makes it easy to navigate settings and setup configurations. The Zone II feature allows for audio playback in another room, expanding the potential for whole-home audio solutions.

Ultimately, with its blend of power, quality, and versatility, the Harman-Kardon AVR 645 remains a respected choice among home theater systems, ensuring an elevated audio and visual experience for all users.
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