Table of Contents

3Introduction

4Safety Information

4Unpacking

5Front Panel Controls

7Rear Panel Connections

10

Main Remote Control Functions

14

Zone II Remote Control Functions

16

Installation and Connections

16

Audio Connections

16

Video Connections

17

HDMI Connections

18

SCART A/V Connections

20

System and Power Connections

21

Speaker Selection

51RDS Operation

51RDS Tuning

51RDS Display Options

52Program Search

53Programming the Remote

53Configuring the Remote

53Preprogrammed Code Entry

54Automatic Code Entry

54Learning Commands

55Learning Codes for an Input Selector

55Device Priority

56Macro Programming

58Punch-Through Configuration

59Renaming

61Resetting the Remote

61Backlight Options

63Troubleshooting Guide

63Processor Reset

64Appendix

67Technical Specifications

21

Speaker Placement

23

System Configuration

23

First Turn On

23

Using the On-Screen Display

23

System Setup

24

In/Out Input Setup

26

Video Monitor Settings

27

Audio Setup

27

Surround Setup

29

Night Mode Settings

29

Using EzSet/EQ

32

Manual Setup

33

Speaker Setup

35

Delay Settings

36Output Level Adjustment

37Additional Input Adjustments

38Operation

38Surround Mode Chart

40Basic Operation

40Source Selection

406/8-Channel Direct Input

41Controls and Use of Headphones

41Surround Mode Selection

42Digital Audio Playback

42Dolby Digital

42DTS

42PCM Audio Playback

43Selecting a Digital Source

43Digital Bitstream Indicators

43USB Playback

44Speaker/Channel Indicators

44Night Mode

45Using The Bridge™

45Tape Recording

45Front Panel Input/Output Connections

46Output Level Adjustment with Source

46EzSet/EQ Operation on/off Signals

46Dim Function

46Memory backup

47Advanced Features

47Front Panel Display Fade

47Display Brightness

47Turn-On Volume Level

48Semi-OSD Settings

48Full-OSD Time Out Adjustment

48DMP The Bridge Auto Power

49Multiroom Operation

50Infrared Output Selection

51Tuner Operation

51Basic Tuner Operation

51Station Selection

51Preset Tuning

2TABLE OF CONTENTS

Declaration of Conformity

We, Harman Consumer Group, Inc.

2, route de Tours

72500 Château-du-Loir,

FRANCE

declare in own responsibility, that the product described in this owner’s manual is in compliance with technical standards:

EN 55013:2001+A1:2003

EN 55020:2002+A1:2003

EN 61000-3-2:2000

EN 61000-3-3.1995+A1:2001

EN 60065:2002

Jurjen Amsterdam

Harman Consumer Group, Inc.

07/06

Typographical Conventions

In order to help you use this manual with the remote control, front-panel controls and rear-panel connections, certain conventions have been used.

EXAMPLE – (bold type) indicates a specific remote control or front-panel button, or rear-panel connection jack

EXAMPLE – (OCR type) indicates a message that is visible on the front-panel information display

EXAMPLE – (Synchro type) indicates a message that is displayed on the remote control’s LCD screen

1– (number in a square) indicates a specific front-panel control

– (number in a circle) indicates a rear-panel connection

0– (number in an oval) indicates a button or indicator on the remote

A– (letter in an oval) indicates a button on the Zone II remote

The appearance of the text or cursor for your receiver’s on-screen menus may vary slightly from the illustrations in this manual. Whether the text appears in all uppercase or upper- and lowercase characters, performance and operation remain the same.

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Harman-Kardon AVR 645 owner manual Table of Contents, Declaration of Conformity

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.