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Harman Kardon AVR 347/230 User Manual

Harman Kardon AVR 347/230
95 pages
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harman/kardon Service Manual
AVR 347/230
AVR 350/230
7 x 55W 7.1 CHANNEL A/V RECEIVERS
CONTENTS
ESD WARNING 2
BASIC SPECIFICATIONS 3
TROUBLESHOOTING GUIDE 4
PROCESSOR RESET 4
AVR 347 PACKAGE LIST AND PARTS 5
AVR 347 DISASSEMBLY 6
AVR 347 DISASSEMBLY PROCEDURE 7
AVR347 EXPLODED VIEW AND PARTS 11
AVR350 PACKAGE LIST AND PARTS 12
AVR 350 DISASSEMBLY 13
AVR 350 EXPLODED VIEW AND PARTS 14
ELECTRICAL PARTS LIST 15
PCB DRAWINGS 74
BLOCK DIAGRAM 83
WIRING DIAGRAM 84
AMP BIAS ADJUSTMENT 85
SCHEMATIC DIAGRAMS 86
(For Semiconductor Pinouts, see separate file )
Released EU2008 harman/kardon, Inc. Rev 0, 07/2008
250 Crossways Park Dr.
Woodbury, New York, 11797
harman/kardon
AVR 347/230 - AVR 350/230 Service Manual
Page 1 of 95
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Harman Kardon AVR 347/230 Specifications

General IconGeneral
TypeAV Receiver
Number of channels7.1
Frequency Response10 Hz - 100 kHz
Signal to Noise Ratio100 dB
Input Impedance47 kOhms
Input Sensitivity200 mV
THD0.07 %
HDMI Outputs1
Width440 mm
Tuner TypeAM/FM
Phono InputYes
Multi-room OutputYes
Remote ControlYes
Digital audio inputCoaxial, Optical
Surround Sound FormatsDolby Digital, DTS
Video Inputs/OutputsComposite, Component
Digital Audio InputsCoaxial, Optical

Summary

Safety and Handling Procedures

Electrostatic Discharge (ESD) Precautions

Guidelines to prevent damage to sensitive components from static electricity.

Product Safety Notices

Crucial safety information for servicing and component replacement.

Technical Specifications

Audio, Tuner, and Video Specifications

Detailed performance parameters for audio, FM/AM tuners, and video sections.

General Unit Specifications

Power requirements, dimensions, and weight of the receiver.

Troubleshooting and Maintenance

Troubleshooting Common Issues

Symptom-based guide for diagnosing and resolving operational problems.

Processor Reset Procedure

Steps to reset the system memory and restore factory default settings.

Disassembly and Parts Identification

AVR347 Disassembly Procedures

Detailed steps for disassembling the AVR347 unit and its sub-assemblies.

AVR347 Exploded View and Parts

Visual parts breakdown and identification for the AVR347 model.

AVR350/230 Disassembly Steps

Instructions for dismantling the AVR350/230 unit.

AVR350/230 Exploded View and Parts

Visual parts breakdown and identification for the AVR350/230 model.

Electrical Parts List

Comprehensive list of all electrical components with part numbers and descriptions.

Diagrams and Adjustments

System Block Diagram

High-level overview of the unit's architecture and signal flow.

System Wiring Diagram

Diagram illustrating internal wiring connections between PCBs and components.

Amplifier Bias Adjustment Procedure

Procedure and target values for setting amplifier bias levels.

Main Schematic Diagram

Detailed schematic of the main PCB assembly, showing component interconnections.

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