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Harman Kardon AVR247 User Manual

Harman Kardon AVR247
206 pages
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harman/kardon
AVR247
7 X 50W 7.1 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……….11
CONNECTIONS/INSTALLATION………....14
OPERATION………………………...………26
TROUBLESHOOTING GUIDE…...……..…34
REMOTE & PROCESSOR RESETS……....35
DISASSEMBLY...…………………………..36
UNIT EXPLODED VIEW…………..…….…..41
EXPLODED VIEW PARTS LIST……………42
AMP BIAS ADJUSTMENT……………….…43
BLOCK DIAGRAM…………………………..44
PCB DRAWINGS……………………………45
ELECTRICAL PARTS LIST………..….……54
SEMICONDUCTOR PINOUTS…….………95
SCHEMATICS……………………………….196
WIRING DIAGRAM…………………………206
harman/kardon, Inc.
250 Crossways Park Dr.
Released 2007 Woodbury, New York 11797 Rev
1 6/2008
Discontinued XXXX
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Harman Kardon AVR247 Specifications

General IconGeneral
Number of Channels7.1
HDMI Inputs2
HDMI Outputs1
Dolby DigitalYes
DTSYes
TypeAV Receiver
Input Sensitivity200 mV
Signal to Noise Ratio100 dB
Total Harmonic Distortion0.07%
Component Video Inputs3
Component Video Outputs1
Power Output50 Watts per channel
Surround Sound FormatsDolby Digital, DTS, Dolby Pro Logic II
Video InputsComposite, S-Video
Video OutputsComposite, S-Video
Dimensions440 x 165 x 382 mm
Frequency Response10 Hz - 100 kHz
Audio InputsAnalog, Optical, Coaxial

Summary

ELECTROSTATICALLY SENSITIVE (ES) DEVICES

SAFETY PRECAUTIONS

LEAKAGE CURRENT CHECK

Procedure for checking leakage current to earth ground to ensure insulation.

AVR247 TECHNICAL SPECIFICATIONS

FRONT-PANEL CONTROLS

REAR-PANEL CONNECTIONS

Audio/Video and Digital Interface Ports

Ports for analog/digital audio/video signals, HDMI, and RS-232 serial.

REMOTE CONTROL FUNCTIONS

CONNECTIONS / INSTALLATION

Source Device Connectivity

Guidance on connecting various audio/video source components to the AVR.

Digital Audio and Video (HDMI) Connections

Using HDMI for digital audio/video and upscaling capabilities.

OPERATION

TROUBLESHOOTING GUIDE

REMOTE & PROCESSOR RESETS

Processor Reset

Procedure for factory resetting the AVR 247 unit to resolve issues.

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