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Harman Kardon AVR325 User Manual

Harman Kardon AVR325
176 pages
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harman/kardon
AVR325
A/V DOLBY DIGITAL RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING………………………….…….2
LEAKAGE TESTING……………….....……....3
BASIC SPECIFICATIONS…………….….…..4
FRONT PANEL CONTROLS………………...5
FRONT PANEL DISPLAY…………………….7
REAR PANEL CONNECTIONS……..….……8
REMOTE CONTROL FUNCTIONS……..…..11
INSTALLATION AND CONNECTIONS….....14
TROUBLESHOOTING GUIDE.................... 17
PROCESSOR RESET…………………….....17
SERVICE BULLETIN # H/K2003-05………..18
SERVICE BULLETIN # H/K2004-04………..19
TECH TIP HKTT2003-01………………….22
EXPLODED VIEW………….……..……….23
EXPLODED VIEW PARTS LIST………….24
AMPLIFIER BIAS ADJUSTMENT……...…27
BLOCK DIAGRAM………………………….31
ELECTRICAL PARTS LIST………..…..….32
PCB DRAWINGS………………….…….…83
SEMICONDUCTOR PINOUTS……..…….95
SCHEMATICS…………………………..…156
WIRING DIAGRAM..…………….. …...….175
PACKAGE………………………………….176
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev3 9/2006

Table of Contents

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Harman Kardon AVR325 Specifications

General IconGeneral
BrandHarman Kardon
ModelAVR325
CategoryReceiver
LanguageEnglish

Summary

Safety and Handling Precautions

Electrostatically Sensitive Device Handling

Procedures to prevent damage to sensitive electronic components from static electricity.

Leakage Test Procedure

Procedure for performing safety leakage current tests on the unit.

Specifications and Operation

Technical Specifications

Detailed specifications for the audio, video, and general sections of the receiver.

Front Panel Controls Overview

Detailed description and function of each button on the front panel.

Front Panel Information Display

Explanation of the various lines and indicators on the front panel display.

Remote Control Functions

Detailed description of the functions of each button on the remote control.

Installation and Connections

Rear Panel Connections

Diagram and list of all rear panel input and output connection terminals.

Installation and Connections Guide

Step-by-step instructions for connecting audio, video, and power equipment.

Troubleshooting and Service Procedures

Troubleshooting Common Issues

Common symptoms, causes, and solutions for operational issues.

Service Bulletins and Technical Tips

Technical updates and tips for common service problems.

Bias Voltage Adjustment Procedures

Procedures for adjusting main amp and surround back amp idle current bias voltages.

Component and Diagram Reference

Exploded View and Parts List

Exploded view diagram and detailed list of all electronic components.

Electrical Parts List

Comprehensive list of electronic components used in the AVR325.

PCB Layout Diagrams

Layout diagrams for the various printed circuit boards.

Semiconductor Pinouts

Pin configurations and descriptions for various semiconductor devices.

Schematic Diagrams

Detailed circuit schematics for the receiver's various sections.

Wiring Diagram

Diagram showing interconnections between different boards and components.

Packing Information

Packing and Accessories Diagram

Illustration of the unit's packaging and included accessories.

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