Harman Kardon AVR245 Service Manual

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

Harman Kardon AVR245 Specifications

General

Number of Channels	7.1
HDMI Inputs	2
HDMI Outputs	1
Dolby Digital	Yes
DTS	Yes
Weight	12.7 kg
Type	AV Receiver
Input Sensitivity	200mV
Tone control	Bass, Treble
Headphone output	Yes
Decoder	Dolby Digital, DTS
DSP	Yes
Tuner type	AM/FM
Number of preset stations	30
Remote control	Yes
Width	440 mm
Height	165 mm
Depth	382 mm
Total Harmonic Distortion	0.07%
Dimensions	440 x 165 x 382 mm
Power Output	50 watts per channel
Input Impedance	47kohm
Digital inputs	Optical, Coaxial
Digital outputs	1 Optical
Frequency Response	10Hz - 100kHz
Video Inputs	Composite, S-Video, Component
Video Outputs	Composite, S-Video, Component
Audio Outputs	7.1 channel
Audio Inputs	Analog