Harman-Kardon + and negative terminals, AVR 645 when appropriate upgrades are available

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Rear Panel Connections

Coaxial Digital Inputs: Connect the coax digital output from a DVD player, HDTV receiver, LD player, MD player or CD player to these jacks. The signal may be either a Dolby Digital signal, DTS signal, a 2 channel MPEG 1 signal, an HDCD data stream or a standard PCM digital source. Do not connect the RF digital output of an LD player to these jacks.

HDMI Inputs: Connect the HDMI output of video sources such as a DVD player, set-top box or HDTV tuner to either of these jacks.

Video 2 Audio Inputs: Connect these jacks to the PLAY/OUT audio jacks on a second VCR or other audio or video source.

Video 3 Audio Inputs: Connect these jacks to the PLAY/OUT audio jacks on any audio or video source.

Video 1 Audio Inputs: Connect these jacks to the PLAY/OUT audio jacks on a VCR or other audio or video source.

Video 1 Audio Outputs: Connect these jacks to the RECORD/INPUT audio jacks on a VCR or any other Audio recorder.

Preamp Outputs: Connect these jacks to an optional, external power amplifier for appli- cations where higher power is desired.

Surround Back/Multiroom Speaker Outputs: These speaker terminals are normally used to power the surround back left/surround back right speakers in a 7.1 channel system. However, they may also be used to power the speakers in a second zone, which will receive the output selected for a multiroom system.

To change the output fed to these terminals from the default of the Surround Back speakers to the Multiroom Output, you must change a setting in the Multiroom Menu of the OSD sys- tem. See page 49 for more information on con- figuring this speaker output. In normal surround system use, the brown and black terminals are the surround back left channel positive (+) and negative (–) connections and the tan and black terminals are the surround back right positive

(+) and negative (–) terminals.

For multiroom use, connect the brown and black SBL terminals to the red and black connections on the left remote zone speaker and connect the tan and black SBR terminals to the red and black terminals on the right remote zone speaker.

RS-232 Port: This jack may be used to con- trol the AVR 645 over a bi-directional RS-232 serial control link to a compatible computer or programmable remote control system. Due to the complexity of programming RS-232 com- mands we strongly recommend that connections to this port for control purposes be made by a trained and qualified technician. This jack may also link to a compatible computer to upgrade the software and operating system of the

AVR 645 when appropriate upgrades are available.

Fan Vents: These ventilation holes are the output of the AVR’s airflow system. To ensure proper operation of the unit and to avoid possi- ble damage to delicate surfaces, make certain that these holes are not blocked and that there is at least three inches of open space between the vent holes and any wooden or fabric surface.

DVD/Video 3 Component Video Inputs: These inputs may be used with any source device equipped with analog Y/Pr/Pb or RGB component video outputs. The factory default is for these jacks to be a linked to the DVD input, but you may change the setting at any time through the IN/OUT SETUP menu. See page 16 for more information on configuring the component video inputs.

Remote IR Carrier Output: The output of

this jack is the full signal received at the Remote Sensor Window ¯ or input through the Remote IR Input including the carrier frequency that is removed from signals at the Remote IR Output . Use this output to extend IR remote signals to the input of compatible products by direct connection or through the use of optional, external IR “blasters”. If you are in doubt as to which of the two IR Output jacks to use, we recommend that you consult with your dealer or installer, or check with the manufacturer of the external equipment you wish to control.

Trigger 1 Output: Connect this jack to the “Trigger In” jack of an optional external compo- nent such as an audio power amplifier that you want to be controlled to mirror the power state of the AVR 645. When this connection is used, the AVR 645 will automatically send a low-volt- age signal to the connected device that turns it on when the AVR 645 is on and off when the AVR 645 is placed in the Standby Mode. The connected component must respond to 6-volt presence as the control signal.

Digital Media Player (DMP) Connector: With the AVR 645 turned off, con- nect one end of the optional Harman Kardon to this proprietary connector, and the other to your compatible Apple iPod. When the Digital Media Player source is selected, you may view your iPod’s control and navigation messages on your video display (if one is connected to one of the Video Monitor Outputs ), and in the Upper and Lower Display Lines ˜. You may navigate the iPod and select tracks for playback using the ⁄¤‹ › Buttons EF, the Set Button FQ and Transport Controls PP on your AVR remote. See page 45 for more information.

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Contents AVR 645 Audio/ Video Receiver Declaration of Conformity Table of ContentsIntroduction Description and FeaturesIntroduction / Safety Information Important Safety InformationUnpacking Front Panel Controls To select between the Optical Coaxial ÓMore information Surround Left Blue Surround Right Gray Surround Back Left Rear Panel ConnectionsSurround Back Right Tan Subwoofer LFE Digital AudioDigital Audio Outputs Connect these AC Power Cord Jack Connect the ACDigital recorder such as a CD-R or MiniDisc recorder Monitor Component Video OutputsAVR 645 when appropriate upgrades are available + and negative terminalsRemote 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 Zone II Remote Control Functions Power Off B AVR Selector The Bridge /DMP Selector Optional is connected to Digital Media Player DMP ConnectorAudio Equipment Connections Installation and ConnectionsAnalog Video Equipment Connections Output jacksHdmi Input Connections Hdmi ConnectionsVideo Inputs Connection NotesScart A/V Connections Hdmi Output ConnectionsTo the Video 2 or Video 3 Video Audio Important Note for Adapter CablesImportant Note for the Use SCART-Cinch Adapters With Scart that cannot be switched and pro- vided by the AVRMain Room Remote Control Extension System and Power ConnectionsBUS Installation Connections Multiroom IR LinkAC Power Connections Speaker PlacementSpeaker Selection USB ConnectionsChannel system for your main listening area see To manually configure your surround back speakerUsing the On-Screen Display System ConfigurationSystem Setup First Turn OnIn/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 FManual Setup Speaker Size MenuSpeaker Size Small LFE Low-Pass-Filter SettingDelay Settings Sub Mode SettingFollowing options are available Subwoofer SizeOutput Level Adjustment Setup Volume until you can hear the test noise clearlyAdditional Input Adjustments Surround Mode Chart OperationChannel Channel presentation of two-channel stereo programs TheaterBasic Operation Source SelectionChannel/8-Channel Direct Input Surround Mode Selection Volume Up/Down ButtonsRepeatedly to scroll through the list of available modes Until Surr OFF appears in the Main Information Display ˜ Digital Audio PlaybackDolby Digital Rear panel Or front panel *ÓDigital Bitstream Indicators Selecting a Digital SourceUSB Playback Speaker/Channel Indicators Audio, while the main feature is availableNight Mode Tape Recording UsingFront Panel In/Outputs Puts for Tape OutputsMemory Backup Output Level Adjustment With Source SignalsNormal output level adjustment for EzSet/EQ On/OffTurn On Volume Level Advanced FeaturesFront-Panel-Display Fade Display BrightnessSemi-OSD Settings Full-OSD Time Out AdjustmentDMP/ TheBridgeTMAuto Power Multiroom Operation Multiroom OperationMultiroom IR Input Infrared Output SelectionIR Output Full Carrier IR OutputTuner Operation Basic Tuner OperationRDS Operation Up/Down button # until RDS only appears in the display Program Search PTYPreprogrammed Code Entry Configuring the RemoteFor Button F appearsAutomatic Code Entry Learning CommandsLearning Codes for an Input Selector Device PriorityPress the ¤ Navigation Button E until Macro Programming Changing DevicesPower On VID 2/TV VID 3/Cable AVR Logic 7 O Erasing a MacroAt the next menu screen press Volume Punch-Through Punch-Through ConfigurationReturning the Volume Control Settings to Default Operation ButtonsAt the next menu screen, press the ⁄¤ Returning the Channel Control Settings to Default OperationTransport Punch-Through Navigation Buttons E until‹ /› Navigation Buttons E as required RenamingResetting the Remote At this point you have two optionsSee page 54 for more information Backlight Options Additional Notes on Configuring and Operating the RemoteProcessor Reset Troubleshooting GuidePower Switch 1 is pushed Press the AVR Selector BSystem Defaults Video Input DefaultsSystem Default and Personal Settings Worksheets Worksheet B Surround Configuration Defaults and Settings Worksheet C Delay Defaults and SettingWorksheet 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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