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Harman Kardon AVR240 User Manual

Harman Kardon AVR240
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harman/kardon
AVR240
7 X 50W 7.1 CHANNEL A/V RECEIVER
PRELIMINARY SERVICE MANUAL
CONTENTS
ESD WARNING……………………………….2
LEAKAGE TESTING……………….…..…....3
BASIC SPECIFICATIONS…………………..4
PACKAGING………………………..………..5
FRONT PANEL CONTROLS………..…..…..6
REAR PANEL CONNECTIONS………….…9
REMOTE CONTROL FUNCTIONS.………12
CONNECTIONS………………………….…16
OPERATION………………………...………18
TROUBLESHOOTING GUIDE…...……..…24
PROCESSOR RESET……………….….…..24
DISASSEMBLY………………………………25
UNIT EXPLODED VIEW……………………..26
EXPLODED VIEW PARTS LIST……………27
AMP BIAS ADJUSTMENT………………….28
TECH TIP HK2003-01…...….….………..…29
BLOCK DIAGRAM…………………………..30
ELECTRICAL PARTS LIST………………...31
PCB DRAWINGS……………………………72
SEMICONDUCTOR PINOUTS……….……78
SCHEMATICS………………………………149
WIRING DIAGRAM………………………….156
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
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Harman Kardon AVR240 Specifications

General IconGeneral
BrandHarman Kardon
ModelAVR240
CategoryReceiver
LanguageEnglish

Summary

ESD Warning

Leakage Testing

Basic Specifications

Packaging

Front Panel Controls

Main Power Switch

Controls the unit's main power supply and standby mode.

Tone Mode

Adjusts bass and treble settings or bypasses tone controls for flat response.

Input Source Selector

Selects the audio/video input source for the receiver.

Volume Control

Adjusts the overall system volume level.

Rear Panel Connections

Speaker Outputs

Terminals for connecting speakers to the amplifier channels.

Analog Audio Inputs/Outputs

Jacks for CD, Tape, and other analog audio sources/recorders.

Digital Audio Inputs/Outputs

Jacks for optical and coaxial digital audio connections.

Component Video Inputs/Outputs

Connects component video signals from sources like DVD players.

Remote Control Functions

Input Selectors

Selects the device to control and the input source for the AVR 240.

AVR Selector

Switches the remote to control the AVR 240 functions.

Tuner Mode

Selects between automatic and manual tuning modes for the tuner.

Volume Up/Down

Adjusts the system volume level up or down.

Installation and Connections

System Installation

Steps for initial setup after unpacking the unit.

Audio Equipment Connections

Connecting analog and digital audio sources and recorders.

Video Equipment Connections

Connecting video sources like VCRs, DVD players, etc.

System and Power Connections

Connecting power cords and accessory outlets.

Operation

Turning the AVR 240 On or Off

Procedures for powering the unit on and off, including standby mode.

Source Selection

How to change the audio and video input sources for playback.

Surround Mode Selection

Choosing from various surround sound modes for immersive audio.

Digital Audio Playback

Information on playing back digital audio sources and their formats.

Troubleshooting Guide

Processor Reset

Steps to reset the unit's memory and microprocessor to clear system malfunctions.

Disassembly

Removing the Top Cabinet

Instructions for removing the top cover of the unit.

Removing the Front Panel

Procedures for detaching the front panel assembly.

Exploded View

Refer to Parts List Next Page

Indicates where to find the detailed parts list for the exploded view.

Amplifier Section Bias Adjustment

Tech Tips

Block Diagram

AVR240 Electrical Parts List

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