Harman Kardon AVR 7550HD Service Manual

harman/kardon
AVR 7550HD
7 X 105W 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………………………….…14
OPERATION………………………...………22
TROUBLESHOOTING GUIDE…...……..…29
PROCESSOR RESET……………….….…..30
UNIT EXPLODED VIEW……………………..31
EXPLODED VIEW PARTS LIST……………32
AMP BIAS ADJUSTMENT………………….34
BLOCK DIAGRAM…………………….……..37
ELECTRICAL PARTS LIST……….……..…40
PCB DRAWINGS…………………….…….106
SEMICONDUCTOR PINOUTS……………124
SCHEMATICS………………………………162
WIRING DIAGRAM.....................................186
harman/kardon, Inc.
250 Crossways Park Dr.
Released 2009 Woodbury, New York 11797 Rev0 1/2010
Discontinued XXXX

Harman Kardon AVR 7550HD Specifications

General

Channels	7.1
Type	AV Receiver
HDMI	Yes
HDMI Inputs	4
HDMI Outputs	1
Video Formats Supported	1080p
THD	0.07%
Input impedance	47 kOhms
Signal-to-noise ratio	100 dB
Frequency response	10 Hz - 100 kHz
Total Harmonic Distortion	0.07%
Input Sensitivity	200 mV
Video Upconversion	Yes
USB Port	Yes
Bluetooth	No
Wi-Fi	No
Audio Formats Supported	Dolby TrueHD, DTS-HD Master Audio
Audio Decoding	Dolby TrueHD, DTS-HD Master Audio