Harman Kardon HK3485 User Manual

harman/kardon
HK3485
STEREO RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING…………………………………..2
LEAKAGE TESTING………………..….…..…....3
SPECIFICATIONS ……………………………....4
PACKAGE…………………………………….…..5
FRONT PANEL CONTROLS ……………… ….6
REAR PANEL CONNECTIONS ………….....…9
REMOTE CONTROL FUNCTIONS ………..…11
CONNECTIONS/INSTALLATION…………..…13
OPERATION……………………………….…....19
TROUBLESHOOTING GUIDE…...……………23
PROCESSOR RESET……………………….…23
DISASSEMBLY PROCEDURES………………24
EXPLODED VIEW …………………….………..25
AMPLIFIER BIAS ADJUSTMENT……….…….26
BLOCK DIAGRAM…………..……….……….…27
IC DESCRIPTIONS/PINOUTS…………………28
ELECTRICAL PARTS LIST ……………………42
PCB DRAWINGS……………………….…….…47
SCHEMATICS………………….…….….………49
WIRING DIAGRAM…………………………..….51
harman/kardon, Inc.
250 Crossways Park Dr.
Released 2007 Woodbury, New York 11797 Rev0 7/2007
Discontinued XXXX

Harman Kardon HK3485 Specifications

General

Brand	Harman Kardon
Model	HK3485
Category	Stereo Receiver
Language	English

Summary

Electrostatic Discharge (ESD) Warnings and Safety Precautions

Electrostatic Sensitive Devices

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

Leakage Current Check

Procedure to measure and ensure safety against electrical shock hazards.

HK 3485 Technical Specifications

Front Panel Controls

Power and Display Controls

Describes Power Switch, Indicator, Headphone Jack, Sleep, Dimmer, Message Display.

Audio and Speaker Controls

Details Bass, Treble, Balance, Volume, Mute, Speaker 1/2, FM Mode controls.

Tuning and Source Selection

Explains Tuning, Presets, Tuner Band, and Source Selector buttons.

Installation and Setup

Speaker and Subwoofer Connections

Antenna and Source Component Connections

Steps for connecting antennas and various audio/video source devices.

Final Installation Steps

Operation

Powering On and Basic Controls

How to turn the unit on/off, use sleep timer, volume, and mute functions.

Audio Adjustments and Source Selection

Tuner Operation and Features

Troubleshooting Guide

Common Issues and Solutions

Table listing symptoms, causes, and solutions for common operational problems.

Processor Reset Procedure

Steps to perform a factory reset if the unit behaves erratically.

HK3485 Exploded View

Amplifier Section Bias Adjustment

System Block Diagram

HK3485 Electrical Parts List

Schematic Diagrams

Wiring Diagram