Harman Kardon HK3490 User Manual

harman/kardon
HK3490
STEREO RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING……………………………….2
LEAKAGE TESTING……………….…..…....3
BASIC SPECIFICATIONS…………………..4
PACKAGING…………………………….……5
FRONT PANEL CONTROLS………..…..…..6
REAR PANEL CONNECTIONS………….…8
REMOTE CONTROL FUNCTIONS……….11
CONNECTIONS/INSTALLATION………....14
OPERATION………………………...………21
TROUBLESHOOTING GUIDE…...……..…26
PROCESSOR RESET……………………....26
DISASSEMBLY…...…………………………..27
UNIT EXPLODED VIEW…………..…….…..30
EXPLODED VIEW PARTS LIST……………31
AMP BIAS ADJUSTMENT……………….…32
BLOCK DIAGRAM…………………………..33
PCB DRAWINGS……………………………34
ELECTRICAL PARTS LIST………..….……40
SEMICONDUCTOR PINOUTS…….………63
SCHEMATICS………….….……………….104
WIRING DIAGRAM…….….……………….108
harman/kardon, Inc.
250 Crossways Park Dr.
Released 2008 Woodbury, New York 11797 Rev0 6/2008
Discontinued XXXX

Harman Kardon HK3490 Specifications

General

Tuner Type	AM/FM
Preset Stations	30
Speaker Impedance	8 Ohms
Amplifier Type	Stereo
Power Output	120 watts per channel (8 ohms)
Frequency Response	10Hz to 100kHz
Input Sensitivity	200mV (line)
Phono Input	MM
Inputs	1 x Phono
Outputs	2 x Speaker

Summary

Electrostatically Sensitive (ES) Devices

Product Safety Notice

Leakage Test(For Service Engineers in the U.S.A)

HK 3490 Technical Specifications

Front-Panel Controls

Rear-Panel Connections

Remote Control Functions

Connections

Installation

Connecting Speakers and Audio Components

Instructions for connecting speakers, subwoofers, antennas, and source components.

Connecting Video and Other Components

Guide for connecting video displays, IR devices, external equipment, and AC power.

Final Setup Steps

Instructions for inserting remote batteries and turning on the receiver.

Operation

Processor Reset

How to reset the receiver to factory defaults or troubleshoot erratic behavior.

Troubleshooting Guide

Disassembly

Top Cabinet and Front Panel Removal

Instructions for removing the top cabinet and front panel assembly.

Internal Component PCB Removal

Steps to remove internal PCBs like Potentiometer, Phone, Volume, LED, and Video.

Module and Main PCB Removal

Steps to remove the Tuner Module, Video PCB, DSP PCB, Input PCB, Power Trans, and Main PCB.

HK3490 Electrical Parts List

PCB, FRONT Components

List of components for the front PCB: capacitors, semiconductors, resistors, miscellaneous.

PCB, MAIN Components

List of components for the main PCB: capacitors, semiconductors, resistors, miscellaneous.

PCB, INPUT Components

List of components for the input PCB: capacitors, semiconductors, resistors, miscellaneous.

PCB, VIDEO Components

List of components for the video PCB: capacitors, semiconductors, resistors, miscellaneous.

PCB, DSP Components

List of components for the DSP PCB: capacitors, semiconductors, resistors, miscellaneous.

HK3490/3390 Idle Current Adjustment

HK3390/3490 Block Diagram

Schematic Diagram

Wiring Diagram