harman/kardon
AVR645
A/V DOLBY DIGITAL RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING………………………………..2
LEAKAGE TESTING…………….….…..…....3
BASIC SPECIFICATIONS…………….……..4
PACKAGE……………………...……...……...5
PACKAGE PARTS LIST…..…………………6
FRONT PANEL CONTROLS………..….……7
REAR PANEL CONNECTIONS……..…..…10
REMOTE CONTROL FUNCTIONS…….….13
INSTALLATION/CONNECTIONS……….…17
OPERATION…………………………………20
TROUBLESHOOTING GUIDE…...…….….28
PROCESSOR RESET……………………..28
UNIT EXPLODED VIEW……………………29
EXPLODED VIEW PARTS LIST………….30
IDLE CURRENT ADJUST…………….…...33
BLOCK DIAGRAM(S)………………………36
CIRCUIT DESCRIPTION…………………..37
SEMICONDUCTOR PINOUTS……..….….38
PCB DRAWINGS……………….……..……88
ELECTRICAL PARTS LIST……………....100
SCHEMATICS……......………..…..………124
WIRING DIAGRAM……………..…………139
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0 – 11/2006
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