Harman Kardon AVR145 User Manual

harman/kardon
AVR145
5 X 40W 5.1 CHANNEL A/V 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……….10
CONNECTIONS/INSTALLATION………....13
OPERATION………………………...………22
TROUBLESHOOTING GUIDE…...……..…26
REMOTE & PROCESSOR RESETS……....26
DISASSEMBLY……………………………….27
UNIT EXPLODED VIEW…………..…….…..31
EXPLODED VIEW PARTS LIST……………32
AMP BIAS ADJUSTMENT……………….…33
BLOCK DIAGRAM…………………………..34
PCB DRAWINGS……………………………35
ELECTRICAL PARTS LIST………..….……42
SEMICONDUCTOR PINOUTS…….………73
SCHEMATICS………………………………144
WIRING DIAGRAM…………………………151
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev 0 1/2007

Harman Kardon AVR145 Specifications

General

Type	AV Receiver
Channels	5.1
Total Harmonic Distortion	0.07%
Input Impedance	47 k ohms
Input Sensitivity	200 mV
Headphone output	Yes
Tuner Type	AM/FM
Power Output	40 watts per channel (8 ohms)
Digital audio input	Coaxial and Optical
Video inputs	Composite, S-Video
Video outputs	1 x Composite
Dimensions (W x H x D)	440mm x 165mm x 382mm

Summary

ESD WARNING

LEAKAGE TESTING

FRONT PANEL CONTROLS

REAR PANEL CONNECTIONS

REMOTE CONTROL FUNCTIONS

CONNECTIONS

Connecting Source Devices to the AVR

Guidance on connecting various source devices for audio and video playback.

INSTALLATION

Step One – Connect the Speakers

Instructions for connecting speakers to the AVR, ensuring correct polarity.

Step Two – Connect the Subwoofer

Guidance on connecting the subwoofer output to the subwoofer.

Step Three – Connect the Antennas

Steps for connecting the FM and AM antennas to their respective terminals.

Step Four – Connect the Source Components

Recommends connections for various source devices like DVD, TV, etc.

Step Five – Connect Video Display

Steps for connecting the AVR's monitor outputs to a TV or display.

Step Six – Plug in AC Power

Instructions for connecting the power cords and initial power-up.

Step Eight – Program Sources Into the Remote

Guide to programming the remote to control various source devices.

Step Nine – Turn On the AVR 145

Procedures for the initial power-on and turning the unit on from standby.

OPERATION

Turning On the AVR 145

How to turn on the receiver from standby mode using front panel or remote.

TROUBLESHOOTING GUIDE

Processor Reset

How to perform a system reset for the AVR to restore factory defaults.

DISASSEMBLY

1. Removing the Top Cabinet

Step-by-step instructions for removing the top cabinet of the unit.

2. Removing the Front Panel

Procedure for safely removing the front panel assembly.

3. Removing the Rear Panel

4. Removing the Main PCB

AMPLIFIER SECTION BIAS ADJUSTMENT

SCHEMATIC DIAGRAM

WIRING DIAGRAM