Harman Kardon AVR 745 Service Manual

16 INSTALLATION AND CONNECTIONS16 INSTALLATION AND CONNECTIONS
INSTALLATION AND CONNECTIONS
various source devices, but you may make any
connection and change the configuration setting
using the
IN/OUT SETUP menu, as
described on page 22.
6. The default video connection for a DVD player is to
use the
Component Video Input 3 Jacks Q on
the AVR, but you may change this assignment in
the
IN/OUT SETUP menu (see page 22).
A DVD player’s composite and S-video outputs may
also be connected to the
DVD Video Inputs S.
Only one connection type is required, although a
composite or S-video connection is required if the
AVR 745 is to be used in a multiroom video system.
7. The default audio connection for a DVD player is
to link the coaxial digital audio output on the DVD
player to the
Coaxial 1 Digital Audio Input d,
but you may also make a connection to either the
Coaxial d or Optical e digital inputs, or the
Analog DVD Audio Inputs c. You may change
the assignment in the
IN/OUT SETUP
menu as described on page 22, or by using the
front-panel
Digital Input Selector F.
8. If you wish to use a portable audio/video product
such as a camcorder, portable media player or
digital still camera with the AVR, or make a connec-
tion to a video game console or other source that
may not always be connected to the AVR, connect
the video outputs of the source to the
Video 4
Input/Output Jacks N that are behind the
Front-Panel Door 8. If the source has digital
audio outputs, connect them to the
Optical 4
Digital Input K or the Coaxial 4 Digital Jack M.
CONNECTION NOTES:
• When making connections to the Component
Video Inputs
Q or the Coaxial d or Optical
e digital audio inputs, it is a good idea to make
note of which jacks are connected to which
source, using the Worksheet in the Appendix. This
will help simplify the configuration process.
• When connecting a source device such as a
cable set-top box where the audio streams may
change between digital and analog as you
change channels, we recommend that you make
both analog and digital connections. The AVR’s
Auto Poll feature will automatically sense when
the digital stream is replaced by an analog output
and switch the input accordingly. (See page 22
for more information on the Auto-Poll feature.)
This dual connection is not required for sources
(such as DVD players or video games) that always
output a digital stream.
9. Connect the AVR to your video display using one of
the following connections:
• If you have a video display with an HDMI or DVI
input, make the connection using the
HDMI
Output
d, as described in the next section.
• If your video display has component video inputs
(Y/Pr/Pb), connect the
Component Video
Outputs O.
• If your display does not have digital or compo-
nent video inputs, connect the
Video Monitor
Output R on the AVR to the matching input on
your display. Only one connection is needed, and
S-video is the higher quality signal.
HDMI Connections
HDMI
™
is the abbreviation for High-Definition
Multimedia Interface, which is quickly becoming
the standard connection point between advanced
video/audio source products and displays, particularly
for high-definition video signals. HDMI is a digital con-
nection, eliminating the need to convert signals back
and forth from digital to analog to deliver a higher
quality signal when used with digital sources. The sig-
nals carried on HDMI may, but do not always, include
audio, offering the possibility of a complete one-wire
connection from a source to the AVR. However, it is
important to note that there are a number of different
versions of the HDMI standard in use. Before connect-
ing any HDMI products to your AVR, it is helpful to find
out in advance their level of HDMI connectivity.
Some source or display components in your system
may use DVI (Digital Video Interface) for digital video
connections. DVI carries the same digital video signals
as HDMI but uses a larger connector and does not
transport audio or control signals. In most cases, you
may mix and match DVI and HDMI digital video con-
nections by using optional connector adapters. Note,
however, that some DVI-equipped video displays are
not compatible with the HDCP copy protection coding
that is increasingly carried with signals connected
via HDMI. If you have an HDMI source and a DVI-
equipped display, you may occasionally be unable to
view a program if the display does not include HDCP.
This is not the fault of the AVR or your source; it sim-
ply indicates that the video display is not compatible.
HDMI Input Connections
The different “Version” levels of HDMI define which
type of audio signals it is compatible with. Based on
the lowest level of HDMI among your sources, the
connections to the AVR should be made as follows:
• HDMI 1.0 sources carry digital video and multi-
channel or 2-channel PCM audio signals only.
Connect the HDMI output of a 1.0 source to either
of the HDMI Inputs N on the AVR. If the product
is a DVD-Audio player or other source that has mul-
tichannel analog audio outputs, connect them to the
8-Channel Direct Inputs f. With an HDMI 1.0
source, particularly a DVD player, make certain
that the menus in the source device are set to
“Bitstream Out” or “Original” so that 5.1 digital audio
is available. If you find that 5.1 Dolby Digital or DTS
audio is not available on the HDMI connection, it
will be necessary to make an additional connection
between the source and the AVR 745 to either the
Coaxial dM or Optical eK Digital Inputs.
• HDMI 1.1 sources carry the multichannel digital
audio output from DVD-Audio players in addition to
the digital video. If you have an HDMI 1.1-equipped
product, the only connection needed for listening
in the main room is from the HDMI output of the
source to either of the
HDMI Inputs N on the
AVR. If the player has SACD capability, you will need
to connect the analog outputs of the source to the
8-Channel Direct Inputs f.
• HDMI 1.2 (and higher) sources should be connected
as shown above for HDMI 1.1, except that a
separate analog connection is not needed for
SACD players.
• It is not possible to feed an analog composite or
S-video signal to a recorder or the AVR’s multizone
system when an HDMI input is in use. If an HDMI-
equipped source also has analog audio and video
outputs, connect them to the
Video 2 or Video 3
Video VW and Audio hi on the AVR.
• In some instances, HDMI-equipped sources will not
permit more than one video output at a time, and
thus you cannot use the same source in the main
listening room and with the recorder or remote zone
at the same time. This is not a fault of the AVR, but
rather a function of the content protection systems
that are part of the HDMI standard.
HDMI Output Connections
Connect the HDMI Output M to an HDMI input on
your video display. Thanks to the AVR 745’s video
processing system, all video input signals are converted
to an HDMI output, so only one connection is required
between the AVR and your display.
System and Power Connections
The AVR 745 is designed for flexible use with multi-
room systems, external control components and
power amplifiers.
Main Room Remote Control Extension
If the receiver is placed behind a solid or smoked-
glass cabinet door, the obstruction may prevent the
remote sensor from receiving commands. In this
event, an optional remote sensor may be used.
Connect the output of the remote sensor to the
IR Input fl.
If other components are also prevented from receiving
remote commands, only one sensor is needed. Simply
use this unit’s sensor or a remote eye by running a
connection from the
IR Output ‹ to the Remote IR
Input jack on Harman Kardon or other compatible
equipment.
If other Harman Kardon-compatible source equipment
is part of the main room installation, the
IR Output
Jack
‹ on the rear panel should be connected to the
IR IN jack on source equipment. This will enable the
INSTALLATION AND CONNECTIONS
AVR 745 OM 5/15/06 5:00 PM Page 16
AVR745
harman/kardon
18

Harman Kardon AVR 745 Specifications

General

Type	AV Receiver
Channels	7.1
Total Harmonic Distortion	0.07%
Frequency Response	10Hz - 100kHz
HDMI Inputs	3
HDMI Outputs	1
Input Impedance	47k Ohms
Input Sensitivity	200mV
Signal to Noise Ratio	100dB
Analog Audio Inputs	6
Analog Audio Outputs	2
Digital Audio Inputs	2 Optical, 2 Coaxial
Supported Audio Formats	Dolby Digital, DTS
Power Output per Channel	75W (8 ohms, 20Hz - 20kHz, 0.07% THD)

Summary

ELECTROSTATICALLY SENSITIVE (ES) DEVICES

LEAKAGE CURRENT CHECK

TECHNICAL SPECIFICATIONS

Audio Section

Detailed audio performance specifications including power, sensitivity, and frequency response.

AM Tuner Section

Specifications for the AM tuner, including frequency range and sensitivity.

Video Section

Technical specifications related to video input and output formats.

General

Overall product dimensions, weight, power requirements, and feature details.

Package Contents

Packing Diagram

Diagram illustrating the layout of components within the product packaging.

AVR745 US Packing Part List

FRONT-PANEL CONTROLS

Front Panel Controls and Indicators

Detailed explanation of front panel controls, buttons, display lines, and indicators.

Front-Panel Jacks and Controls

Description of controls and jacks accessible behind the front-panel door.

REAR-PANEL CONNECTIONS

Rear Panel Connection Terminals

Diagram and list of all rear panel connection terminals with their functions.

TC 30 REMOTE CONTROL FUNCTIONS

TC 30 Remote Controls Overview

Identification of buttons and features on the TC 30 remote control.

TC 30 Remote Function Descriptions

Detailed descriptions of how each button on the TC 30 remote operates.

ZR 10 REMOTE CONTROL FUNCTIONS

ZR 10 Remote Controls Overview

Identification of buttons and features on the ZR 10 remote control.

ZR 10 Remote Function Descriptions

Detailed descriptions of how each button on the ZR 10 remote operates.

INSTALLATION AND CONNECTIONS

System Installation and Audio Connections

Initial system setup and guidelines for connecting audio sources and recorders.

Analog Video Equipment Connections

Instructions for connecting analog video sources like VCRs and DVD players.

INSTALLATION AND CONNECTIONS

HDMI Connections

Details on connecting the AVR 745 via HDMI, including version compatibility.

System and Power Connections

Connecting external control components, power amplifiers, and power cords.

INSTALLATION AND CONNECTIONS

Multiroom Audio Connections

Options for sending audio signals to a remote zone using various connection methods.

Multiroom Video Connections

Methods for sending video signals to a remote room location.

A-BUS Installation Connections

Connecting the AVR 745 to compatible A-BUS/READY products for remote zone operation.

RS-232 Connections

Guidance on connecting the AVR 745 for external computer or control system integration.

USB Connections

Instructions for connecting computers or media players via USB for playback and updates.

Trigger Connections

Using low-voltage triggers to control compatible optional devices.

INSTALLATION AND CONNECTIONS

XM Radio Connections

Steps for connecting and setting up an XM Radio module for satellite radio.

AC Power Connections

Information on using the switched AC accessory outlet and power cord.

OPERATION

Basic Operation: Turning the AVR 745 On or Off

Procedures for powering the unit on, off, and using sleep mode.

Source Selection

Methods for choosing input sources from the front panel, TC 30, or ZR 10 remote.

OPERATION

Volume and Tone Control

Adjusting volume, muting, and controlling bass/treble settings.

Surround Mode Selection

How to choose and apply different surround sound modes.

OPERATION

Digital Audio Playback

Understanding and utilizing digital audio sources like Dolby Digital and DTS.

DTS

Details on the DTS digital audio format and its playback compatibility.

OPERATION

Selecting a Digital Source

Steps for configuring and selecting digital audio inputs.

USB Playback

Connecting and playing audio from a computer via the USB port.

Digital Bitstream and Surround Mode Indications

Interpreting digital bitstream information and channel indicators.

OPERATION

Speaker/Channel Indicators

Interpreting front-panel indicators for speaker configuration and signal status.

Night Mode

Using the Night Mode feature to reduce dynamic range for late-night listening.

OPERATION

Dolby Digital

Default digital format for DVDs and ATSC high-definition systems.

AM/FM Tuner Operation

Tuning and selecting stations for AM and FM broadcasts.

Video Adjustments and Operation

Adjusting video settings and using the Faroudja processing features.

OPERATION

XM Radio Operation

Setting up and operating the XM Radio service for satellite radio.

Preset Tuning

Storing and recalling radio stations into memory presets.

OPERATION

Output Level Trim Adjustment

Manually adjusting speaker output levels for optimal sound balance.

EzSet/EQII Operation

Using the automated speaker setup and EQ system for acoustic optimization.

Subwoofer Control

Managing subwoofer output, including turning individual subwoofers on/off.

Dim Function

Adjusting the brightness of the front-panel displays and indicators.

Memory Backup

Understanding the system's memory backup and configuration preservation.

TROUBLESHOOTING GUIDE

Troubleshooting Symptoms and Causes

Table listing common symptoms, their potential causes, and solutions.

Processor Reset

Procedure to reset the AVR 745's memory and configuration settings.

UNIT EXPLODED VIEW

EXPLODED VIEW PARTS LIST

SERVICE PROCEDURE

MAIN AMP idling Adjustment

Procedure for adjusting idling current on the main amplifier board.

SURROUND BACK AMP idling Adjustment

Procedure for adjusting idling current on the surround back amplifier board.

Cautions for main adjustment

Important safety precautions and notes before performing main adjustments.

AVR745-CIRCUIT DESCRIPTION

U-COM and AK4114 Functional Blocks

Description of key processing and digital interface ICs within the AVR 745.

TMS320DA610 DSP and Amplifier Block

Details on the DSP, memory, and audio output stages of the AVR 745.

AVR745 BLOCK DIAGRAM

Audio Part Block Diagram

Detailed block diagram of the audio signal processing and amplification sections.

Video Part Block Diagram

Block diagram illustrating the video signal processing and interface circuits.

SEMICONDUCTOR PINOUT DRAWINGS

uPD70F3261YGC LQFP100 Port Define

Pinout definition for the uPD70F3261YGC microcontroller used in the AVR745.

IC Pin Name and Function Descriptions

Detailed list of IC pin names, their input/output functions, and descriptions.

PCB DRAWINGS

Main Board PCB Layout

Top-side layout diagram of the main printed circuit board.

Main Board (Second View) PCB Layout

Bottom-side layout diagram of the main printed circuit board.

Other PCB Layouts

Layout diagrams for various other PCBs within the AVR 745 unit.

ELECTRICAL PARTS LIST

DSP PCB Assembly Parts

List of capacitors, semiconductors, and resistors for the DSP PCB.

Other PCB Assembly Parts

Components for RS232 PCB, Standby PSU, Surround PCB, and Video PCB.

Miscellaneous Mechanical Assembly Parts

List of miscellaneous mechanical and connector components.

Tuner Module Parts

List of components for the tuner modules (USA and Europe).

SCHEMATIC DIAGRAM

Front Schematic Diagram

Schematic diagram detailing the front panel circuitry and controls.

Main Amp Schematic Diagram

Schematic diagram of the main amplifier section of the AVR 745.

Processor Schematic Diagram (1/2)

Part one of the processor schematic, illustrating the DSP and related circuits.

Processor Schematic Diagram (2/2)

Part two of the processor schematic, detailing further processor and interface circuits.

RS232 Schematic Diagram

Schematic diagram illustrating the RS232 communication interface.

Supply Schematic Diagram

Schematic diagram of the power supply unit for the AVR 745.

Center SB Amp Schematic Diagram

Schematic diagram for the center and surround back amplifier boards.

DSP Schematic Diagrams (1/4 to 4/4)

Detailed schematics of the DSP section, broken down into four parts.

Video Schematic Diagrams (1/2 to 2/2)

Schematics detailing the video processing and interface circuitry.

AVR745/645/445 WIRING DIAGRAM