Harman kardon avi 250

Page 1

The Harman Kardon
Model AVI250

AUDIO AND VIDEO AMPLIFIER

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harman kardan AVI250

CONTENTS
SPECIFICATIONS .......................................... 2 GENERAL UNIT PARTS LIST ..................... 1O
LEAKAGE TEST ...................... GENERAL UNIT ........................ 11
DISASSEMBLY PROCEDURES ..... P.C. BOARDS ..... .. ..... 12
CONTROLS AND FUNCTIONS.,... ELECTRICAL PARTS LIS . ..... 19

SERVICE PROGRAM ..................
ALIGNMENT PROCEDURES.
CIRCUIT DESCRIPTION

BLOCK DIAGRAM ......................................... 9

IC BLOCK DIAGRAMS ........ .34
SCHEMATIC DIAGRAMS .39
WIRING DIAGRAM ....................................... 46

harman/kardon

Parts and Service Office

Manual A

80 Crossways Park West Woodbury, NY. 11797

1112vAVI250 1200 Printed in Japan

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SPECIFICATIONS

Audio Section
Stereo Mode

Continuous Average Power ( FTC )
100 Watts per channel 20Hz-20KH22
@ <0.07% THD, both channels driven into 8 Ohms

Five Channel Surround Mode

Continuous average power per channel ( FTC )

From L&R channels:

85 Watts per channel from 20Hz-20KHz,
6 <0.05% THD. both channels driven into 8 Ohms

Center channel:

85 Watts from 20Hz-20KHz,
@ <0.05% THD, driven into 8 Ohms

Surround channels:

60 Walls per channel from 40Hz-20KH2,
@

Input Sensitivity/Impedance
Linear
Front Main in
Center Main In
Surround Main ln

220mV/50 Kohms
1.5 V/20 Kohms
1.5 V/20 Kohms
1.0 V/20 Kohms

Signal to Noise Rate ( lHF-A)

Linear

Dolby Surround
Channels Separation

Frequency Response
@ 1W (+0, -3 118)

High Instantaneous
Current Capability ( HCC )

Transient Intermodulation
Distortion ( TIM )

Rise Time

Slew Rate

95 dB

40 dB

7Hz-80KH2

30 amps

Unmeasurable
16 usec

40 Vlusec

Video Section
Television Format
Input Level/Impedance th-p/75 Ohms
Output Level/Impedance 1Vp-p/75 Ohms
Video Frequency Response 10 Hz to 80 MHz (~3 dB)
SIN 65 dB

PAL. NTSC, SECAM

General

Power Requirement AC 230V 50 Hz

Power Consumption 54W idle, 700W maximum

Dimension ( Max)

Width 17.4 inches (444 mm)
Height 6.4 inches (160 mm)
Depth 18 inches (459 mm)
Weight 31 Lbs. (14 kg)

Specifications and components are subiect to change without
notice. Overall performance will be maintained or improved.