harman/kardon
HK3490
STEREO 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………………………...………21
TROUBLESHOOTING GUIDE…...……..…26
PROCESSOR RESET……………………....26
DISASSEMBLY…...…………………………..27
UNIT EXPLODED VIEW…………..…….…..30
EXPLODED VIEW PARTS LIST……………31
AMP BIAS ADJUSTMENT……………….…32
BLOCK DIAGRAM…………………………..33
PCB DRAWINGS……………………………34
ELECTRICAL PARTS LIST………..….……40
SEMICONDUCTOR PINOUTS…….………63
SCHEMATICS………….….……………….104
WIRING DIAGRAM…….….……………….108
harman/kardon, Inc.
250 Crossways Park Dr.
Released 2008 Woodbury, New York 11797 Rev0 6/2008
Discontinued XXXX
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