Harman Kardon AVR 245, Service Manual

Page: 1 / 228

harman/kardon
AVR245
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………………………...………25
TROUBLESHOOTING GUIDE…...……..…32
REMOTE & PROCESSOR RESETS……....33
DISASSEMBLY……………………………….34
UNIT EXPLODED VIEW…………..…….…..38
EXPLODED VIEW PARTS LIST……………39
AMP BIAS ADJUSTMENT……………….…40
BLOCK DIAGRAM…………………………..41
PCB DRAWINGS……………………………42
ELECTRICAL PARTS LIST………..………53
SEMICONDUCTOR PINOUTS…….………97
SCHEMATICS………………………………220
WIRING DIAGRAM…………………………228
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev 0 1/2007