Harman Kardon HK680 Technical Manual

The Harman Kardon
Model HK680
INTEGRATED AMPLIFIER
Manual 199A
echnical Manual
harman/kardon — Hk 680
Oxexerrs
OO
The following marks found in the parts list of this manual
identify the models as follows.
@: International model Black version
@.: International model
CONTENTS
SPECIFICATIONS
........cccccsssseccccccescssesesacceeeees
2
ELECTRICAL
PARTS
LIST
..........ccccccccceeceeee
13
POWER
CORD
REPLACEMENT
..........ccccceeee
2
SCHEMATIC
DIAGRAMS
..........ccccccceseseesess
19
DISASSEMBLY
PROCEDURES
............c000060.
3
WIRING
DIAGRAM
uuu........ccccccccceccescsessscoeves
22
CONTROLS
AND
FUNCTIONS
................0665
4
PH600
PHONO
P.C.
BOARD
OPTION
ALIGNMENT
PROCEDURES
............sccccceceeee
5
HOW
TO
INSTALL
................ccccsesecscececeessece
23
BLOCK
DIAGRAM
uu.u.........cecceccccesesesesssseeeees
5
GENERAL
UNIT
AND
PARTS
LIST
............
23
GENERAL
UNIT
PARTS
LIST
..........cccccceceeses
6
P.
C.
BOARDS.
uu...
ccceccceecececccccccccccscasccuccccesses
24
GENERAL
UNIT
EXPLODED
VIEW...............
7
WIRING
DIAGRAM
.............cccccccccsesesesecsceses
24
P.
C.
BOARDS.
........cccccecccccccssssccsscscesacscseanecees
8
SCHEMATIC
DIAGRAM
.........c:ccccccccccseeseees
25
IC
BLOCK
DIAGRAM
..............0.ccceccsecscasseeee
11
ELECTRICAL
PARTS
LIST
.........ccccccccccceeseee
26
harman/kardon
Parts and Service Office
80 Crossways Park West,Woodbury,N.Y. 11797
1112-HK680-A G9502 300 Printed in Japan
SF ER eee a A Lr

Harman Kardon HK680 Specifications

Power

continuous average power per channel (FTC) 8 Ohms	85 Watts
continuous average power per channel (FTC) 4 Ohms	130 Watts
dynamic power (IHF, 1kHz tone burst) 8 Ohms	110 Watts
dynamic power (IHF, 1kHz tone burst) 4 Ohms	170 Watts
dynamic power (IHF, 1kHz tone burst) 2 Ohms	240 Watts
high instantaneous current capability (HCC)	+70 Amps
power supply	AC 230V, 50/60Hz
power consumption	300W

Audio Performance

power bandwidth @ half-rated output, 8 Ohms	<10Hz - 100kHz
frequency response @ 1W (+0/—3dB)	0.25Hz - 100kHz
damping factor	80
signal-to-noise ratio tuner/CD	98dB
signal-to-noise ratio phono (MM)	80dB
signal-to-noise ratio phono (MC)	75dB
tone control range bass @ 50Hz	+10dB
tone control range treble @ 10kHz	+10dB

Inputs and Impedance

input sensitivity/impedance tuner/CD	150mV/22kOhms
input sensitivity/impedance phono (MM)	2.2mV/47kOhms, 125pf
input sensitivity/impedance phono (MC)	120nV/56Ohms
phono-overload option phono (MM)	100mV
phono-overload option phono (MC)	5mV

Weight and Dimensions

dimensions (width x height x depth)	443 x 134 x 406mm
weight	12.4kg