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Harman Kardon HK3480 Service Manual

Harman Kardon HK3480
55 pages
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harman/kardon
HK3480
STEREO RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING…………………………....…….2
LEAKAGE TESTING………………..….…..…....3
SPECIFICATIONS ……………………………....4
FRONT PANEL CONTROLS ……………… ….5
REAR PANEL CONNECTIONS ………….....…8
REMOTE CONTROL FUNCTIONS ………..…10
TROUBLESHOOTING GUIDE…...……………12
PROCESSOR RESET……………………….…12
AMPLIFIER BIAS ADJUSTMENT……….…….13
BULLETIN HK2003-10……………………. …..14
BULLETIN HK2004-02……………………. …..16
DISASSEMBLY PROCEDURES………………17
EXPLODED VIEW …………………….………..20
BLOCK DIAGRAM…………..……….……….…21
FRONT PANEL DISPLAY..……….……….……22
IC DESCRIPTIONS/PINOUTS…………………26
ELECTRICAL PARTS LIST …………..………..40
PCB DRAWINGS……………………….…….…46
SCHEMATICS……………………………………48
WIRING DIAGRAM…………………………..….54
PACKAGE…………………………………….….55
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev2 2/2006

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Harman Kardon HK3480 Specifications

General IconGeneral
Speaker Load Impedance8 ohms
Input Impedance47k ohms
Tuner TypeAM/FM
Preset Stations30
Power Output120 watts per channel
Frequency Response10Hz - 100kHz (+0dB, -3dB)
Total Harmonic Distortion<0.07% at 20Hz – 20kHz
Dimensions440mm x 165mm x 410mm
Input Sensitivity200mV
Weight12.7kg

Summary

Safety Precautions

Electrostatically Sensitive Devices

Procedures to prevent damage to sensitive components from static electricity.

Product Safety Notice

General safety precautions and component replacement guidelines for servicing.

Leakage Testing

Test Procedure

Steps for performing the AC leakage current safety test.

Technical Specifications

Audio Section

Details on power output, sensitivity, S/N ratio, and distortion.

Tuner Sections (FM/AM)

Frequency ranges, sensitivity, and performance for FM and AM tuners.

Video Section

Specifications for video input and output signals.

General

Power requirements, dimensions, and weight of the unit.

Front Panel Controls

Control Descriptions

Detailed explanation of each button, knob, and display on the front panel.

Front Panel Information Display

Indicator Descriptions

Explanation of the indicators on the front panel information display.

Rear Panel Connections

Connection Descriptions

Detailed explanation of each rear panel input and output connector.

Remote Control Functions

Button Function Descriptions

Explanation of the functions of each button on the remote control.

Troubleshooting

Common Problems and Solutions

A guide to diagnosing and resolving common operational issues.

Memory Backup and Processor Reset

Information on system memory and how to perform a processor reset.

Amplifier Bias Adjustment

Adjustment Procedure

Steps and values for adjusting amplifier bias for left and right channels.

Service Bulletin H/K2003-10

Volume Encoder Replacement

Procedure to replace the volume encoder for volume control tracking issues.

Service Bulletin H/K2004-02

Software Upgrade for Preset Scan

Procedure for upgrading software to resolve silence during preset scan.

Disassembly Procedures

Top Cabinet Removal

Instructions for removing the top cabinet cover.

Front Panel Assembly Removal

Instructions for detaching the front panel assembly.

Rear Panel Removal

Instructions for removing the rear panel.

Main PCB Removal

Instructions for removing the main printed circuit board.

Exploded View

Component Identification

Diagram showing the assembly of parts and a list of components.

Block Diagram

System Architecture Overview

Diagram illustrating the functional blocks and signal flow of the receiver.

Outer Dimensions

Physical Measurements

Diagrams and dimensions detailing the physical size of the unit.

Pattern Details

Illumination Color and Patterns

Details on the color and pattern of front panel illumination.

Grid Assignment

Function to Grid Mapping

Table mapping front panel functions to grid assignments.

Anode Connection

External Current Amplifying Example

Reference to an example of external current amplifying connections.

IC81 Device Block Diagram

HVIST72F321R (U-COM) Architecture

Block diagram showing the internal structure and functions of the HVIST72F321R IC.

Pin Description

64-Pin TQFP Package Pinout

Diagram and pinout for the 64-pin TQFP package.

Device Pin Description

Pin Name and Function Details

Detailed table of pin names, types, levels, port configurations, and functions.

IC83 EEPROM

Block Diagram and Signal Names

Block diagram, signal names, and connection details for the EEPROM IC.

NJM2068 Operational Amplifier

General Description and Features

Overview of the dual operational amplifier's performance and characteristics.

Pin Configuration and Equivalent Circuit

Diagram of pin layout and equivalent circuit for the NJM2068.

IC91 Block Diagram

NJM2296M Circuit Overview

Block diagram of the NJM2296M IC and associated components.

IC85 Voltage Detector

Block Diagram and Timing Charts

Block diagram, timing chart, and delay time definition for the voltage detector IC.

IC84 Reset IC

Pin Configuration and Block Diagrams

Pin configuration, description, and block diagrams for the reset IC.

IC12 TC9164AF

Function/Input Block Diagram

Block diagram for the TC9164AF function/input IC.

IC13 TC9163AF

Function/Input Block Diagram

Block diagram for the TC9163AF function/input IC.

TC9459F Block Diagram

Toshiba TC9459N/F Circuit

Block diagram for the Toshiba TC9459F function/input IC.

TC9459N/F Pin Description

Toshiba TC9459N/F Pinout Details

Table detailing pin numbers, symbols, names, functions, and remarks.

Transistor and Regulator IC Diagrams

Common Package Types and Pinouts

Diagrams and pinouts for common transistor and regulator IC packages.

Electrical Parts List

PCB Components

List of capacitors and resistors on the front PCB.

Resistors

List of resistors used in the unit, with part numbers and specifications.

Wiring Diagram

PCB and Interconnection Layout

Diagram showing the layout of PCBs and their interconnections.

Main Board Layout

Component and Connector Placement

Diagram showing the placement of components and connectors on the main board.

Schematic Diagram

System Circuitry Overview

Overall schematic of the receiver's electronic circuits.

Wiring Diagram

PCB Interconnection Layout

Diagram showing the wiring and connections between major PCBs.

Accessories

Instruction Manual Assembly

List and diagram of accessory items included with the manual.

Package Drawing

Product Packaging

Diagram showing how the unit is packaged for shipping.

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