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Harman Kardon HK 3490 Service Manual

Harman Kardon HK 3490
70 pages
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harman/kardon Service Manual
HK 3490/230
2 x 120W STEREO RECEIVER
CONTENTS
LEAKAGE CHECK 2
ESD WARNING 3
TECHNICAL SPECIFICATIONS 4
TROUBLESHOOTING GUIDE 5
FRONT PANEL CONTROLS 6
REAR PANEL CONNECTIONS 7
PACKAGE LIST AND PARTS 8
DISASSEMBLY 9
EXPLODED VIEW AND PARTS 13
ELECTRICAL PARTS LIST 14
SEMICONDUCTOR PINOUTS 34
PCB DRAWINGS 58
BLOCK DIAGRAM 64
WIRING DIAGRAM 65
AMP BIAS ADJUSTMENT 66
SCHEMATIC DIAGRAMS 67
Released EU2008 harman/kardon, Inc. Rev 0, 09/2008
250 Crossways Park Dr.
Woodbury, New York, 11797
harman/kardon
HK 3490/230 Service Manual
Page 1 of 70

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Harman Kardon HK 3490 Specifications

General IconGeneral
Impedance8 Ω
Receiver typeSurround
Audio output channels2.1 channels
Total Harmonic Distortion (THD)0.07 %
Power output per channel (20-20KHz@8 Ohm)120 W
Headphone outputs1
Headphone connectivity-
Digital audio coaxial out0
Product colorBlack
Handheld remote controlNo
Apple docking compatibilityNot supported
Connectivity technologyWired
Supported radio bandsAM, FM
Radio Data System (RDS)Yes
Preset stations quantity30
Weight and Dimensions IconWeight and Dimensions
Depth382 mm
Width440 mm
Height165 mm
Weight10400 g

Summary

Harman Kardon HK 3490/230 Service Manual

Safety Precautions

Leakage Current Check

Procedure to measure leakage current to earth ground and exposed metal parts to prevent shock hazard.

Electrostatically Sensitive Devices

Product Safety Notice

Guidelines for safe servicing, including component replacement and measurements before returning the product.

Technical Specifications

Troubleshooting Guide

Common Issues and Solutions

List of common user-encountered problems with their potential solutions for troubleshooting.

Front Panel Controls

Rear Panel Connections

Disassembly Procedures

Disassembly Steps Overview

Visual overview of the disassembly process, showing steps for removing top, front, rear panels and main PCB.

Detailed Disassembly Steps

Component PCB Removal Procedures

Step-by-step instructions for removing various PCBs like front panel, phone, volume, power LED, and video.

Further PCB and Component Removal

Further PCB and Component Removal

Detailed steps for removing front PCB, tuner module, video, DSP, input PCBs, power transistors, and main PCB.

Exploded View and Parts Identification

Exploded View Diagram

Diagram showing the product disassembled into its component parts, with reference numbers.

Electrical Parts List

Component Part Numbers and Descriptions

List of electrical components with reference numbers, descriptions, and values.

Front PCB Assembly Parts

Front PCB Assembly Components

Front PCB Assembly Components (Continued)

Front PCB Assembly Components (Details)

Main PCB Assembly Parts

Main PCB Assembly Parts

List of components specific to the main PCB assembly.

Main PCB Assembly Components

Main PCB Assembly Components

Detailed list of components for the main PCB assembly.

Main PCB Assembly Components (Continued)

Main PCB Assembly Components (Continued)

Additional components for the main PCB assembly.

Main PCB Assembly Components (Details)

Main PCB Assembly Components (Details)

Further component listings for the main PCB assembly.

Main PCB Assembly Components (Final)

Main PCB Assembly Components (Final)

Final component listings for the main PCB assembly.

Input PCB Assembly Parts

Input PCB Assembly Parts

List of components specific to the input PCB assembly.

Input PCB Assembly Components

Input PCB Assembly Components

Detailed list of components for the input PCB assembly.

Input PCB Assembly Components (Continued)

Input PCB Assembly Components (Continued)

Additional components for the input PCB assembly.

Input PCB Assembly Components (Details)

Input PCB Assembly Components (Details)

Further component listings for the input PCB assembly.

Input PCB Assembly Components (Final)

Input PCB Assembly Components (Final)

Final component listings for the input PCB assembly.

DSP PCB Assembly Parts

DSP PCB Assembly Parts

List of components specific to the DSP PCB assembly.

DSP PCB Assembly Components

DSP PCB Assembly Components

Detailed list of components for the DSP PCB assembly.

DSP PCB Assembly Components (Continued)

DSP PCB Assembly Components (Continued)

Additional components for the DSP PCB assembly.

DSP PCB Assembly Components (Final)

DSP PCB Assembly Components (Final)

Final component listings for the DSP PCB assembly.

Device Pinout Diagrams

CS48520 Pinout Diagram

CS48540 48-pin LQFP Pinout

CS48560 48-pin LQFP Pinout

Seiko S-808xxC Series Absolute Maximum Ratings

Block Diagram

System Block Diagram Overview

High-level block diagram showing the main functional blocks and their interconnections.

Wiring Diagram

Internal Wiring Diagram

Diagram illustrating the internal wiring and cable connections between different circuit boards.

Idle Current Adjustment

Schematic Diagram (Input/Phono/Video)

Schematic Diagram (Front/Tone/Volume/Power)

Schematic Diagram (Main/Trans/Speaker)

Schematic Diagram (DSP/i-Pod/XM)

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